{"title":"Fish Antibiotics","description":"\u003cstyle\u003e\n  \/* Remove Boost theme width restriction on collection descriptions *\/\n  .template-collection .reading-width,\n  .template-collection .rte,\n  .template-collection .rte--expanded-images {\n    width: 100% !important;\n    max-width: none !important;\n  }\n\n  .cvs-collection-copy {\n    --cvs-orange: #e37111;\n    --cvs-teal: #148d85;\n    --cvs-green: #64ad82;\n    --cvs-dark: #09213f;\n    --cvs-text: #24374e;\n    --cvs-muted: #64748b;\n    --cvs-border: #dce3eb;\n    --cvs-light: #f5f8fa;\n    --cvs-teal-light: #eef8f6;\n    --cvs-orange-light: #fff6ed;\n    --cvs-white: #ffffff;\n\n    width: 100%;\n    max-width: 1675px;\n    margin: 0 auto;\n    padding-right: 40px;\n    padding-left: 40px;\n    color: var(--cvs-text);\n    font-family: inherit;\n    font-size: 17px;\n    line-height: 1.7;\n    scroll-behavior: smooth;\n  }\n\n  .cvs-collection-copy,\n  .cvs-collection-copy * {\n    box-sizing: border-box;\n  }\n\n  .cvs-collection-copy section {\n    scroll-margin-top: 120px;\n  }\n\n  .cvs-collection-copy p {\n    margin: 0 0 18px;\n  }\n\n  .cvs-collection-copy strong {\n    font-weight: 750;\n  }\n\n  .cvs-collection-copy a {\n    transition: 0.25s ease;\n  }\n\n  .cvs-collection-title {\n    margin: 0 0 24px;\n    color: var(--cvs-dark);\n    font-size: clamp(36px, 4.2vw, 56px);\n    font-weight: 800;\n    line-height: 1.1;\n    letter-spacing: -0.03em;\n  }\n\n  .cvs-section-title {\n    margin: 0 0 22px;\n    color: var(--cvs-dark);\n    font-size: clamp(29px, 3vw, 41px);\n    font-weight: 800;\n    line-height: 1.2;\n    letter-spacing: -0.02em;\n  }\n\n  .cvs-subtitle {\n    margin: 34px 0 16px;\n    color: var(--cvs-dark);\n    font-size: 23px;\n    font-weight: 750;\n    line-height: 1.35;\n  }\n\n  .cvs-lead {\n    color: #30445d;\n    font-size: 19px;\n    line-height: 1.8;\n  }\n\n  .cvs-section {\n    padding: 56px 0;\n    border-top: 1px solid #edf0f3;\n  }\n\n  .cvs-section:first-of-type {\n    border-top: 0;\n  }\n\n  .cvs-toc {\n    display: flex;\n    align-items: center;\n    gap: 10px;\n    margin: 0 0 45px;\n    padding: 4px 0 10px;\n    overflow-x: auto;\n    scrollbar-width: none;\n  }\n\n  .cvs-toc::-webkit-scrollbar {\n    display: none;\n  }\n\n  .cvs-toc-label {\n    flex: 0 0 auto;\n    margin-right: 4px;\n    color: var(--cvs-dark);\n    font-weight: 800;\n    white-space: nowrap;\n  }\n\n  .cvs-toc a {\n    flex: 0 0 auto;\n    display: inline-flex;\n    align-items: center;\n    min-height: 48px;\n    padding: 10px 21px;\n    border: 1px solid var(--cvs-border);\n    border-radius: 999px;\n    background: #f8fafc;\n    color: var(--cvs-dark);\n    font-size: 16px;\n    line-height: 1.2;\n    text-decoration: none;\n    white-space: nowrap;\n  }\n\n  .cvs-toc a:hover {\n    border-color: var(--cvs-teal);\n    background: var(--cvs-teal);\n    color: var(--cvs-white);\n    transform: translateY(-2px);\n  }\n\n  .cvs-glance {\n    margin: 0 0 46px;\n    overflow: hidden;\n    border: 1px solid var(--cvs-border);\n    border-radius: 20px;\n    background: var(--cvs-white);\n  }\n\n  .cvs-glance-heading {\n    padding: 21px 25px;\n    background: linear-gradient(\n      135deg,\n      var(--cvs-teal) 0%,\n      var(--cvs-green) 100%\n    );\n    color: var(--cvs-white);\n    font-size: 23px;\n    font-weight: 800;\n  }\n\n  .cvs-glance-row {\n    display: grid;\n    grid-template-columns: 35% 65%;\n    border-top: 1px solid var(--cvs-border);\n  }\n\n  .cvs-glance-label,\n  .cvs-glance-value {\n    padding: 16px 19px;\n  }\n\n  .cvs-glance-label {\n    background: #f3f5f7;\n    color: var(--cvs-dark);\n    font-weight: 750;\n  }\n\n  .cvs-glance-value {\n    background: #f9fafb;\n  }\n\n  .cvs-notice {\n    margin-top: 28px;\n    padding: 22px 24px;\n    border-left: 5px solid var(--cvs-orange);\n    border-radius: 0 16px 16px 0;\n    background: var(--cvs-orange-light);\n    color: #63310c;\n  }\n\n  .cvs-review-date {\n    margin-top: 16px;\n    color: var(--cvs-muted);\n    font-size: 14px;\n  }\n\n  .cvs-short-grid {\n    display: grid;\n    grid-template-columns: repeat(4, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 28px;\n  }\n\n  .cvs-short-card {\n    padding: 25px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: linear-gradient(\n      145deg,\n      var(--cvs-teal-light) 0%,\n      var(--cvs-white) 100%\n    );\n  }\n\n  .cvs-short-card:nth-child(2n) {\n    border-color: #efcfb1;\n    background: linear-gradient(\n      145deg,\n      var(--cvs-orange-light) 0%,\n      var(--cvs-white) 100%\n    );\n  }\n\n  .cvs-short-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 42px;\n    height: 42px;\n    margin-bottom: 16px;\n    border-radius: 50%;\n    background: var(--cvs-teal);\n    color: var(--cvs-white);\n    font-size: 14px;\n    font-weight: 800;\n  }\n\n  .cvs-short-card:nth-child(2n) .cvs-short-number {\n    background: var(--cvs-orange);\n  }\n\n  .cvs-short-card h3 {\n    margin: 0 0 10px;\n    color: var(--cvs-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .cvs-short-card p {\n    margin: 0;\n    color: var(--cvs-muted);\n  }\n\n  .cvs-table-wrapper {\n    margin-top: 30px;\n    overflow-x: auto;\n    border: 1px solid var(--cvs-border);\n    border-radius: 19px;\n    background: var(--cvs-white);\n  }\n\n  .cvs-table {\n    width: 100%;\n    min-width: 1080px;\n    border-collapse: collapse;\n    background: var(--cvs-white);\n  }\n\n  .cvs-table th,\n  .cvs-table td {\n    padding: 17px 18px;\n    border-bottom: 1px solid var(--cvs-border);\n    text-align: left;\n    vertical-align: top;\n  }\n\n  .cvs-table th {\n    background: var(--cvs-teal);\n    color: var(--cvs-white);\n    font-weight: 750;\n  }\n\n  .cvs-table tr:nth-child(even) td {\n    background: #f7f9fa;\n  }\n\n  .cvs-table tr:last-child td {\n    border-bottom: 0;\n  }\n\n  .cvs-table a {\n    color: var(--cvs-orange);\n    font-weight: 800;\n    text-decoration: none;\n  }\n\n  .cvs-table a:hover {\n    text-decoration: underline;\n  }\n\n  .cvs-tip {\n    margin-top: 24px;\n    padding: 23px 25px;\n    border-radius: 17px;\n    background: linear-gradient(\n      135deg,\n      var(--cvs-dark) 0%,\n      var(--cvs-teal) 100%\n    );\n    color: var(--cvs-white);\n  }\n\n  .cvs-tip p {\n    margin: 0;\n    color: var(--cvs-white);\n  }\n\n  .cvs-four-grid {\n    display: grid;\n    grid-template-columns: repeat(4, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 29px;\n  }\n\n  .cvs-info-card {\n    padding: 27px;\n    border: 1px solid var(--cvs-border);\n    border-radius: 19px;\n    background: var(--cvs-white);\n    box-shadow: 0 8px 28px rgba(15, 42, 70, 0.06);\n  }\n\n  .cvs-info-icon {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 47px;\n    height: 47px;\n    margin-bottom: 18px;\n    border-radius: 14px;\n    background: var(--cvs-teal-light);\n    color: var(--cvs-teal);\n    font-size: 19px;\n    font-weight: 800;\n  }\n\n  .cvs-info-card:nth-child(2n) .cvs-info-icon {\n    background: var(--cvs-orange-light);\n    color: var(--cvs-orange);\n  }\n\n  .cvs-info-card h3 {\n    margin: 0 0 11px;\n    color: var(--cvs-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .cvs-info-card p {\n    margin: 0;\n    color: var(--cvs-muted);\n  }\n\n  .cvs-use-note {\n    margin-top: 25px;\n    padding: 24px;\n    border: 1px solid #cde4de;\n    border-radius: 17px;\n    background: var(--cvs-teal-light);\n  }\n\n  .cvs-use-note p:last-child {\n    margin-bottom: 0;\n  }\n\n  .cvs-steps {\n    display: grid;\n    gap: 18px;\n    margin-top: 28px;\n  }\n\n  .cvs-step {\n    display: grid;\n    grid-template-columns: 62px minmax(0, 1fr);\n    gap: 18px;\n    padding: 26px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: #f1f9f7;\n  }\n\n  .cvs-step:nth-child(even) {\n    border-color: #efcfb1;\n    background: #fff8f1;\n  }\n\n  .cvs-step-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 49px;\n    height: 49px;\n    border-radius: 50%;\n    background: var(--cvs-teal);\n    color: var(--cvs-white);\n    font-size: 18px;\n    font-weight: 800;\n  }\n\n  .cvs-step:nth-child(even) .cvs-step-number {\n    background: var(--cvs-orange);\n  }\n\n  .cvs-step h3 {\n    margin: 2px 0 9px;\n    color: var(--cvs-dark);\n    font-size: 22px;\n    line-height: 1.35;\n  }\n\n  .cvs-step p:last-child {\n    margin-bottom: 0;\n  }\n\n  .cvs-spectrum-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 28px;\n  }\n\n  .cvs-spectrum-card {\n    padding: 26px;\n    border: 1px solid var(--cvs-border);\n    border-radius: 18px;\n    background: var(--cvs-light);\n  }\n\n  .cvs-spectrum-label {\n    display: block;\n    margin-bottom: 9px;\n    color: var(--cvs-teal);\n    font-size: 12px;\n    font-weight: 800;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n  }\n\n  .cvs-spectrum-card h3 {\n    margin: 0 0 11px;\n    color: var(--cvs-dark);\n    font-size: 21px;\n  }\n\n  .cvs-spectrum-card p {\n    margin: 0;\n    color: var(--cvs-muted);\n  }\n\n  .cvs-shipping-grid,\n  .cvs-responsible-grid,\n  .cvs-why-grid {\n    display: grid;\n    grid-template-columns: repeat(4, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 28px;\n  }\n\n  .cvs-feature-card {\n    padding: 27px;\n    border: 1px solid var(--cvs-border);\n    border-radius: 18px;\n    background: var(--cvs-white);\n  }\n\n  .cvs-feature-card h3 {\n    margin: 0 0 11px;\n    color: var(--cvs-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .cvs-feature-card p:last-child {\n    margin-bottom: 0;\n  }\n\n  .cvs-feature-card a {\n    color: var(--cvs-orange);\n    font-weight: 800;\n    text-decoration: none;\n  }\n\n  .cvs-feature-card a:hover {\n    text-decoration: underline;\n  }\n\n  .cvs-responsible-card {\n    padding: 27px;\n    border-radius: 18px;\n    background: var(--cvs-teal);\n    color: var(--cvs-white);\n  }\n\n  .cvs-responsible-card:nth-child(2) {\n    background: var(--cvs-green);\n  }\n\n  .cvs-responsible-card:nth-child(3) {\n    background: var(--cvs-orange);\n  }\n\n  .cvs-responsible-card:nth-child(4) {\n    background: var(--cvs-dark);\n  }\n\n  .cvs-responsible-card h3,\n  .cvs-responsible-card p {\n    color: var(--cvs-white);\n  }\n\n  .cvs-responsible-card h3 {\n    margin: 0 0 11px;\n    font-size: 21px;\n  }\n\n  .cvs-responsible-card p {\n    margin: 0;\n  }\n\n  .cvs-reminder {\n    margin-top: 25px;\n    padding: 24px;\n    border: 1px solid #efc49c;\n    border-radius: 18px;\n    background: var(--cvs-orange-light);\n    color: #63310c;\n  }\n\n  .cvs-why-card {\n    padding: 28px;\n    border: 1px solid var(--cvs-border);\n    border-radius: 19px;\n    background: var(--cvs-white);\n    box-shadow: 0 8px 28px rgba(15, 42, 70, 0.06);\n  }\n\n  .cvs-why-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 45px;\n    height: 45px;\n    margin-bottom: 17px;\n    border-radius: 50%;\n    background: var(--cvs-orange);\n    color: var(--cvs-white);\n    font-weight: 800;\n  }\n\n  .cvs-why-card:nth-child(2n) .cvs-why-number {\n    background: var(--cvs-teal);\n  }\n\n  .cvs-why-card h3 {\n    margin: 0 0 11px;\n    color: var(--cvs-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .cvs-why-card p {\n    margin: 0;\n    color: var(--cvs-muted);\n  }\n\n  .cvs-faq {\n    display: grid;\n    gap: 12px;\n    margin-top: 28px;\n  }\n\n  .cvs-faq details {\n    overflow: hidden;\n    border: 1px solid var(--cvs-border);\n    border-radius: 15px;\n    background: var(--cvs-white);\n  }\n\n  .cvs-faq summary {\n    position: relative;\n    padding: 19px 58px 19px 21px;\n    color: var(--cvs-dark);\n    font-weight: 750;\n    cursor: pointer;\n    list-style: none;\n  }\n\n  .cvs-faq summary::-webkit-details-marker {\n    display: none;\n  }\n\n  .cvs-faq summary::after {\n    content: \"+\";\n    position: absolute;\n    top: 50%;\n    right: 21px;\n    color: var(--cvs-teal);\n    font-size: 27px;\n    line-height: 1;\n    transform: translateY(-50%);\n  }\n\n  .cvs-faq details[open] summary::after {\n    content: \"−\";\n  }\n\n  .cvs-faq details[open] summary {\n    background: var(--cvs-teal-light);\n  }\n\n  .cvs-faq-answer {\n    padding: 0 21px 20px;\n    color: var(--cvs-muted);\n  }\n\n  .cvs-faq-answer p:last-child {\n    margin-bottom: 0;\n  }\n\n  .cvs-product-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 28px;\n  }\n\n  .cvs-product-card {\n    display: flex;\n    flex-direction: column;\n    min-height: 100%;\n    padding: 27px;\n    border: 1px solid var(--cvs-border);\n    border-radius: 19px;\n    background: var(--cvs-white);\n    box-shadow: 0 8px 28px rgba(15, 42, 70, 0.06);\n    transition: 0.3s ease;\n  }\n\n  .cvs-product-card:hover {\n    transform: translateY(-5px);\n    box-shadow: 0 15px 38px rgba(15, 42, 70, 0.11);\n  }\n\n  .cvs-product-tag {\n    display: inline-flex;\n    align-self: flex-start;\n    margin-bottom: 14px;\n    padding: 6px 11px;\n    border-radius: 999px;\n    background: var(--cvs-teal-light);\n    color: var(--cvs-teal);\n    font-size: 12px;\n    font-weight: 800;\n    letter-spacing: 0.04em;\n    text-transform: uppercase;\n  }\n\n  .cvs-product-card:nth-child(2n) .cvs-product-tag {\n    background: var(--cvs-orange-light);\n    color: var(--cvs-orange);\n  }\n\n  .cvs-product-card h3 {\n    margin: 0 0 10px;\n    color: var(--cvs-dark);\n    font-size: 22px;\n    line-height: 1.35;\n  }\n\n  .cvs-product-card p {\n    flex: 1;\n    color: var(--cvs-muted);\n  }\n\n  .cvs-product-card a {\n    margin-top: auto;\n    color: var(--cvs-orange);\n    font-weight: 800;\n    text-decoration: none;\n  }\n\n  .cvs-product-card a:hover {\n    text-decoration: underline;\n  }\n\n  .cvs-blog-banner {\n    margin-top: 22px;\n    padding: 29px;\n    border-radius: 20px;\n    background: linear-gradient(\n      135deg,\n      var(--cvs-teal) 0%,\n      var(--cvs-green) 100%\n    );\n    color: var(--cvs-white);\n  }\n\n  .cvs-blog-banner h3,\n  .cvs-blog-banner p,\n  .cvs-blog-banner a {\n    color: var(--cvs-white);\n  }\n\n  .cvs-blog-banner h3 {\n    margin: 0 0 10px;\n    font-size: 25px;\n  }\n\n  .cvs-blog-banner a {\n    font-weight: 800;\n  }\n\n  .cvs-verification {\n    overflow: hidden;\n    border: 1px solid var(--cvs-border);\n    border-radius: 20px;\n    background: var(--cvs-white);\n  }\n\n  .cvs-verification-header {\n    padding: 26px;\n    background: var(--cvs-dark);\n    color: var(--cvs-white);\n  }\n\n  .cvs-verification-header h2 {\n    margin: 0 0 7px;\n    color: var(--cvs-white);\n    font-size: 30px;\n  }\n\n  .cvs-verification-header p {\n    margin: 0;\n    color: rgba(255, 255, 255, 0.88);\n  }\n\n  .cvs-verification-body {\n    padding: 28px;\n  }\n\n  .cvs-verification-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin: 24px 0;\n  }\n\n  .cvs-verification-card {\n    padding: 23px;\n    border: 1px solid #cfe2df;\n    border-radius: 16px;\n    background: var(--cvs-teal-light);\n  }\n\n  .cvs-verification-card h3 {\n    margin: 0 0 9px;\n    color: var(--cvs-teal);\n    font-size: 20px;\n  }\n\n  .cvs-verification-card p {\n    margin: 0;\n  }\n\n  .cvs-educational-note {\n    margin-top: 24px;\n    padding: 20px 22px;\n    border-radius: 15px;\n    background: #eef3f7;\n    color: #42566d;\n    font-size: 15px;\n  }\n\n  .cvs-contact-link {\n    color: var(--cvs-orange);\n    font-weight: 800;\n  }\n\n  @media (max-width: 1200px) {\n    .cvs-short-grid,\n    .cvs-four-grid,\n    .cvs-shipping-grid,\n    .cvs-responsible-grid,\n    .cvs-why-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n\n    .cvs-product-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n  }\n\n  @media (max-width: 900px) {\n    .cvs-spectrum-grid {\n      grid-template-columns: 1fr;\n    }\n  }\n\n  @media (max-width: 749px) {\n    .cvs-collection-copy {\n      padding-right: 18px;\n      padding-left: 18px;\n      font-size: 16px;\n      line-height: 1.65;\n    }\n\n    .cvs-collection-title {\n      font-size: 33px;\n    }\n\n    .cvs-section {\n      padding: 40px 0;\n    }\n\n    .cvs-section-title {\n      font-size: 28px;\n    }\n\n    .cvs-toc-label {\n      display: none;\n    }\n\n    .cvs-toc a {\n      min-height: 44px;\n      padding: 9px 17px;\n      font-size: 15px;\n    }\n\n    .cvs-glance-row {\n      grid-template-columns: 1fr;\n    }\n\n    .cvs-glance-label {\n      padding-bottom: 7px;\n    }\n\n    .cvs-glance-value {\n      padding-top: 7px;\n    }\n\n    .cvs-short-grid,\n    .cvs-four-grid,\n    .cvs-shipping-grid,\n    .cvs-responsible-grid,\n    .cvs-why-grid,\n    .cvs-product-grid,\n    .cvs-verification-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .cvs-step {\n      grid-template-columns: 48px minmax(0, 1fr);\n      gap: 14px;\n      padding: 21px;\n    }\n  }\n\n  @media (prefers-reduced-motion: reduce) {\n    .cvs-collection-copy *,\n    .cvs-collection-copy *::before,\n    .cvs-collection-copy *::after {\n      transition: none !important;\n      animation: none !important;\n      scroll-behavior: auto !important;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"cvs-collection-copy\"\u003e\n\u003csection class=\"cvs-section\" id=\"overview\"\u003e\n\u003ch1 class=\"cvs-collection-title\"\u003eFish \u0026amp; Bird Antibiotics \/ Antibacterial Treatments\u003c\/h1\u003e\n\u003cnav class=\"cvs-toc\" aria-label=\"On this page\"\u003e\u003cspan class=\"cvs-toc-label\"\u003eOn this page:\u003c\/span\u003e \u003ca href=\"#compare\"\u003eCompare by Ingredient\u003c\/a\u003e \u003ca href=\"#why-treatment\"\u003eWhy Treatment Is Used\u003c\/a\u003e \u003ca href=\"#how-to-choose\"\u003eHow to Choose\u003c\/a\u003e \u003ca href=\"#buying-shipping\"\u003eBuying \u0026amp; Shipping\u003c\/a\u003e \u003ca href=\"#responsible-use\"\u003eResponsible Use\u003c\/a\u003e \u003ca href=\"#why-california-vet-supply\"\u003eWhy California Vet Supply\u003c\/a\u003e \u003ca href=\"#faq\"\u003eFAQ\u003c\/a\u003e \u003ca href=\"#full-fix-line\"\u003eFull Fix Line\u003c\/a\u003e\u003c\/nav\u003e\n\u003cdiv class=\"cvs-glance\"\u003e\n\u003cdiv class=\"cvs-glance-heading\"\u003eFish \u0026amp; Bird Antibacterials at a Glance\u003c\/div\u003e\n\u003cdiv class=\"cvs-glance-row\"\u003e\n\u003cdiv class=\"cvs-glance-label\"\u003eIntended for\u003c\/div\u003e\n\u003cdiv class=\"cvs-glance-value\"\u003eOrnamental aquarium fish and non-food pet birds\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-glance-row\"\u003e\n\u003cdiv class=\"cvs-glance-label\"\u003eAvailable forms\u003c\/div\u003e\n\u003cdiv class=\"cvs-glance-value\"\u003eCapsules and tablets in clearly labeled strengths\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-glance-row\"\u003e\n\u003cdiv class=\"cvs-glance-label\"\u003eProduct line\u003c\/div\u003e\n\u003cdiv class=\"cvs-glance-value\"\u003eAqua Soma Labs Fix line\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-glance-row\"\u003e\n\u003cdiv class=\"cvs-glance-label\"\u003eIngredients represented\u003c\/div\u003e\n\u003cdiv class=\"cvs-glance-value\"\u003eAmoxicillin, cephalexin, doxycycline, ciprofloxacin, metronidazole, clindamycin, SMZ\/TMP, penicillin, and azithromycin\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-glance-row\"\u003e\n\u003cdiv class=\"cvs-glance-label\"\u003eBest treatment setup\u003c\/div\u003e\n\u003cdiv class=\"cvs-glance-value\"\u003eA separate hospital or quarantine tank for ornamental fish\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-glance-row\"\u003e\n\u003cdiv class=\"cvs-glance-label\"\u003eBird use\u003c\/div\u003e\n\u003cdiv class=\"cvs-glance-value\"\u003eOnly under the direction of a qualified avian veterinarian\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"cvs-lead\"\u003eAntibacterial treatments for fish, sometimes called fish antibiotics or fish antibacterials, are capsules and tablets labeled for ornamental aquarium fish, with several products also intended for non-food pet birds under veterinary guidance.\u003c\/p\u003e\n\u003cp\u003eThis collection brings together the antibacterial treatments in the Aqua Soma Labs Fix line. Each product is built around a clearly identified active ingredient and is supplied in a capsule or tablet format suitable for its labeled ornamental-animal use.\u003c\/p\u003e\n\u003cp\u003eThe collection includes amoxicillin, cephalexin, doxycycline, ciprofloxacin, metronidazole, clindamycin, penicillin, azithromycin, and the sulfamethoxazole\/trimethoprim combination commonly abbreviated as SMZ\/TMP.\u003c\/p\u003e\n\u003cp\u003eMany aquarium keepers search using familiar product nicknames rather than ingredient names. Common searches include Fish Mox, Fish Flex, Fish Doxy, Fish Flox, Fish Zole, Fish Cin, Fish Sulfa, Fish Pen, and Bird Zithro.\u003c\/p\u003e\n\u003cp\u003eEvery product section below lists both the familiar nickname and the active ingredient so you can compare the name you remember with the product currently available.\u003c\/p\u003e\n\u003cp\u003eSome shoppers are looking for one specific ingredient already recommended by an aquatic or avian professional. Others are comparing the available options before deciding which product page to review.\u003c\/p\u003e\n\u003cp\u003eUse the comparison table, selection guide, and individual product links below to narrow the collection by ingredient, strength, form, and intended situation.\u003c\/p\u003e\n\u003ch2 class=\"cvs-section-title\" style=\"margin-top: 42px;\"\u003eThe Short Version\u003c\/h2\u003e\n\u003cdiv class=\"cvs-short-grid\"\u003e\n\u003cdiv class=\"cvs-short-card\"\u003e\n\u003cdiv class=\"cvs-short-number\"\u003e01\u003c\/div\u003e\n\u003ch3\u003eOrnamental-Animal Products\u003c\/h3\u003e\n\u003cp\u003eThese products are labeled for ornamental aquarium fish, with selected products also intended for non-food pet birds under veterinary guidance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-short-card\"\u003e\n\u003cdiv class=\"cvs-short-number\"\u003e02\u003c\/div\u003e\n\u003ch3\u003eChoose by Ingredient\u003c\/h3\u003e\n\u003cp\u003eSelect according to the suspected problem and active ingredient rather than choosing only by popularity, bottle size, or nickname.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-short-card\"\u003e\n\u003cdiv class=\"cvs-short-number\"\u003e03\u003c\/div\u003e\n\u003ch3\u003eUse a Hospital Tank\u003c\/h3\u003e\n\u003cp\u003eFor aquarium fish, use a separate treatment tank, remove activated carbon when directed, monitor water quality, and follow the complete label course.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-short-card\"\u003e\n\u003cdiv class=\"cvs-short-number\"\u003e04\u003c\/div\u003e\n\u003ch3\u003eKeep Bird Use Vet-Led\u003c\/h3\u003e\n\u003cp\u003eAn avian veterinarian must select the product and determine the amount, administration method, frequency, and duration for any pet bird.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-notice\"\u003e\n\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e Every product in this collection is intended for ornamental aquarium fish and non-food pet birds only. These products are not intended for humans or animals raised for food.\u003c\/div\u003e\n\u003cdiv class=\"cvs-review-date\"\u003eLast reviewed: July 11, 2026\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"cvs-section\" id=\"compare\"\u003e\n\u003ch2 class=\"cvs-section-title\"\u003eCompare Fish \u0026amp; Bird Treatments by Ingredient\u003c\/h2\u003e\n\u003cp\u003eThe fastest way to narrow the collection is by active ingredient and product form.\u003c\/p\u003e\n\u003cp\u003eThe table below lists the Fix product, the nickname familiar to many aquarium keepers, the available ingredient strength, product form, and the type of situation for which each option is commonly considered.\u003c\/p\u003e\n\u003cp\u003eOpen the individual product page to review the current bottle sizes, full directions, safety information, and label-specific treatment guidance.\u003c\/p\u003e\n\u003cdiv class=\"cvs-table-wrapper\"\u003e\n\u003ctable class=\"cvs-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eIngredient\u003c\/th\u003e\n\u003cth\u003eNickname\u003c\/th\u003e\n\u003cth\u003eForm\u003c\/th\u003e\n\u003cth\u003eCommonly considered for\u003c\/th\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmoxicillin 250 mg \/ 500 mg\u003c\/td\u003e\n\u003ctd\u003eFish Mox\u003c\/td\u003e\n\u003ctd\u003eCapsules\u003c\/td\u003e\n\u003ctd\u003eA familiar option for certain suspected bacterial problems, particularly when a susceptible Gram-positive organism may be involved\u003c\/td\u003e\n\u003ctd\u003e\n\u003ca href=\"\/search?q=Fix+Mox\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/www.calvetsupply.com\/\/products\/fish-mox\"\u003eShop Fix Mox →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCephalexin 250 mg \/ 500 mg\u003c\/td\u003e\n\u003ctd\u003eFish Flex\u003c\/td\u003e\n\u003ctd\u003eCapsules\u003c\/td\u003e\n\u003ctd\u003eFin and tail deterioration, ulcers, infected wounds, skin lesions, and certain soft-tissue concerns\u003c\/td\u003e\n\u003ctd\u003e\n\u003ca href=\"\/search?q=Fix+Flex\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flex\"\u003eShop Fix Flex →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDoxycycline 100 mg\u003c\/td\u003e\n\u003ctd\u003eFish Doxy\u003c\/td\u003e\n\u003ctd\u003eTablets\u003c\/td\u003e\n\u003ctd\u003eColumnaris-type signs, certain respiratory concerns, and situations where a doxycycline tablet format is preferred\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-doxy\"\u003eShop Fix Doxy →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCiprofloxacin 500 mg\u003c\/td\u003e\n\u003ctd\u003eFish Flox\u003c\/td\u003e\n\u003ctd\u003eCapsules\u003c\/td\u003e\n\u003ctd\u003ePersistent bacterial concerns, including certain Gram-negative problems, ulcer-like sores, columnaris-type patches, and septicemia-like signs\u003c\/td\u003e\n\u003ctd\u003e\n\u003ca href=\"\/search?q=Fix+Flox\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flox\"\u003eShop Fix Flox →\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetronidazole 250 mg \/ 500 mg\u003c\/td\u003e\n\u003ctd\u003eFish Zole\u003c\/td\u003e\n\u003ctd\u003eTablets\u003c\/td\u003e\n\u003ctd\u003eCertain internal protozoal concerns, anaerobic-sensitive organisms, Hexamita, Spironucleus, and related signs\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zole\"\u003eShop Fix Zole →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClindamycin 150 mg\u003c\/td\u003e\n\u003ctd\u003eFish Cin\u003c\/td\u003e\n\u003ctd\u003eCapsules\u003c\/td\u003e\n\u003ctd\u003eCertain suspected Gram-positive bacterial concerns involving skin, mouth, wounds, lesions, and soft tissue\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-cin\"\u003eShop Fix Cin →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSulfamethoxazole 800 mg \/ Trimethoprim 160 mg\u003c\/td\u003e\n\u003ctd\u003eFish Sulfa\u003c\/td\u003e\n\u003ctd\u003eTablets\u003c\/td\u003e\n\u003ctd\u003eA dual-ingredient SMZ\/TMP combination considered for a range of susceptible bacterial concerns\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-sulfa\"\u003eShop Fix Sulfa →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePenicillin V Potassium 500 mg\u003c\/td\u003e\n\u003ctd\u003eFish Pen\u003c\/td\u003e\n\u003ctd\u003eTablets\u003c\/td\u003e\n\u003ctd\u003eCertain susceptible Gram-positive bacterial concerns, including wounds, ulcers, mouth problems, and fin deterioration\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-pen\"\u003eShop Fix Pen →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAzithromycin 250 mg\u003c\/td\u003e\n\u003ctd\u003eFish Zithro \/ Bird Zithro\u003c\/td\u003e\n\u003ctd\u003eTablets\u003c\/td\u003e\n\u003ctd\u003eCertain fish bacterial concerns and veterinarian-directed respiratory or Mycoplasma-related care for non-food pet birds\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zithro\"\u003eShop Fix Zithro →\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-tip\"\u003e\n\u003cp\u003e\u003cstrong\u003eSelection Tip:\u003c\/strong\u003e The appropriate product depends on the likely cause rather than price, bottle count, or popularity. Similar symptoms may be caused by bacteria, fungus, parasites, injury, poor water quality, or environmental stress. Review the selection guide below and consult an aquatic or avian professional whenever the cause is unclear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"cvs-section\" id=\"why-treatment\"\u003e\n\u003ch2 class=\"cvs-section-title\"\u003eWhy Aquarium Fish and Pet Birds Sometimes Need Antibacterial Treatment\u003c\/h2\u003e\n\u003cp\u003eAquarium fish and pet birds may develop health problems after common environmental or husbandry-related stressors.\u003c\/p\u003e\n\u003cp\u003eAntibacterial treatment may form part of the response when the signs, history, and professional assessment suggest that susceptible bacteria are involved.\u003c\/p\u003e\n\u003cdiv class=\"cvs-four-grid\"\u003e\n\u003cdiv class=\"cvs-info-card\"\u003e\n\u003cdiv class=\"cvs-info-icon\"\u003e01\u003c\/div\u003e\n\u003ch3\u003eWater-Quality Problems\u003c\/h3\u003e\n\u003cp\u003eRising ammonia, nitrite, unstable pH, low oxygen, or poor maintenance can damage the protective skin and gills and make fish more vulnerable to opportunistic organisms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-info-card\"\u003e\n\u003cdiv class=\"cvs-info-icon\"\u003e02\u003c\/div\u003e\n\u003ch3\u003eNew Arrivals Without Quarantine\u003c\/h3\u003e\n\u003cp\u003eNew fish or birds may introduce organisms into an established aquarium or aviary before visible symptoms develop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-info-card\"\u003e\n\u003cdiv class=\"cvs-info-icon\"\u003e03\u003c\/div\u003e\n\u003ch3\u003eTemperature and Environmental Stress\u003c\/h3\u003e\n\u003cp\u003eSudden temperature changes, overcrowding, transport, aggression, poor housing, and unstable conditions can weaken normal defenses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-info-card\"\u003e\n\u003cdiv class=\"cvs-info-icon\"\u003e04\u003c\/div\u003e\n\u003ch3\u003eOpportunistic Bacterial Growth\u003c\/h3\u003e\n\u003cp\u003eInjured, stressed, or already weakened animals may become more vulnerable to bacteria that would not normally cause a serious problem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 30px;\"\u003eTreatment works best alongside the basics: stable water quality, appropriate temperature, strong aeration, clean housing, suitable nutrition, and reduced stress.\u003c\/p\u003e\n\u003cp\u003eApplying an antibacterial treatment without correcting the underlying environmental problem may delay recovery or allow the symptoms to return.\u003c\/p\u003e\n\u003ch3 class=\"cvs-subtitle\"\u003eMatch the Signs to a Likely Cause\u003c\/h3\u003e\n\u003cdiv class=\"cvs-steps\"\u003e\n\u003cdiv class=\"cvs-step\"\u003e\n\u003cdiv class=\"cvs-step-number\"\u003e1\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eLook Carefully at the Visible Signs\u003c\/h3\u003e\n\u003cp\u003eFrayed fins, open sores, red streaking, cloudy eyes, body lesions, appetite loss, and reduced activity may be associated with bacterial stress in aquarium fish.\u003c\/p\u003e\n\u003cp\u003eIn birds, fluffed feathers, changed droppings, reduced appetite, breathing changes, and inactivity may signal illness but are not proof of a bacterial cause.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-step\"\u003e\n\u003cdiv class=\"cvs-step-number\"\u003e2\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eRule Out Water Quality First\u003c\/h3\u003e\n\u003cp\u003eTest ammonia, nitrite, temperature, pH, and oxygen conditions before adding treatment.\u003c\/p\u003e\n\u003cp\u003ePoor water quality can imitate disease, cause similar visible signs, and reduce the effectiveness of any treatment added afterward.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-step\"\u003e\n\u003cdiv class=\"cvs-step-number\"\u003e3\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eProtect the Display Aquarium\u003c\/h3\u003e\n\u003cp\u003eA separate hospital or quarantine tank helps protect plants, shrimp, snails, corals, healthy fish, and the beneficial bacteria supporting the main aquarium's biological filter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-step\"\u003e\n\u003cdiv class=\"cvs-step-number\"\u003e4\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eKeep All Bird Treatment Veterinarian-Led\u003c\/h3\u003e\n\u003cp\u003eBird species, size, weight, diagnosis, and health status affect the appropriate product and amount.\u003c\/p\u003e\n\u003cp\u003eAn avian veterinarian must select the product and establish the administration method, frequency, and treatment duration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-use-note\"\u003e\n\u003cp\u003e\u003cstrong\u003eUse responsibly:\u003c\/strong\u003e Incorrect or unnecessary treatment can stress the animal, disturb the aquarium, delay the correct care, and contribute to reduced antibacterial effectiveness. Follow the current product label and seek professional guidance when the diagnosis is uncertain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"cvs-section\" id=\"how-to-choose\"\u003e\n\u003ch2 class=\"cvs-section-title\"\u003eHow to Choose the Right Fish or Bird Antibacterial\u003c\/h2\u003e\n\u003cp\u003eThere is no single product that is best for every bacterial concern.\u003c\/p\u003e\n\u003cp\u003eThe appropriate choice depends on the animal, visible signs, likely cause, active ingredient, treatment format, and instructions printed on the current product label.\u003c\/p\u003e\n\u003cdiv class=\"cvs-steps\"\u003e\n\u003cdiv class=\"cvs-step\"\u003e\n\u003cdiv class=\"cvs-step-number\"\u003e1\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eDecide Whether You Are Treating Fish or a Bird\u003c\/h3\u003e\n\u003cp\u003eFor ornamental aquarium fish, product-label directions are generally based on the actual volume of water in a treatment tank.\u003c\/p\u003e\n\u003cp\u003eFor non-food pet birds, do not use aquarium calculations. An avian veterinarian must determine the appropriate product and amount according to the bird's species, weight, diagnosis, and overall condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-step\"\u003e\n\u003cdiv class=\"cvs-step-number\"\u003e2\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eIdentify the Most Likely Type of Problem\u003c\/h3\u003e\n\u003cp\u003eFin and tail deterioration, ulcers, infected wounds, red streaking, and cloudy eyes are external signs.\u003c\/p\u003e\n\u003cp\u003eSwelling, bloating, appetite loss, unusual droppings, sudden inactivity, or balance problems may suggest a deeper or systemic concern.\u003c\/p\u003e\n\u003cp\u003eThese signs can also result from fungus, parasites, injury, toxins, or poor water quality, so avoid choosing an antibacterial solely from one symptom.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-step\"\u003e\n\u003cdiv class=\"cvs-step-number\"\u003e3\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eCompare the Ingredient and Activity Profile\u003c\/h3\u003e\n\u003cp\u003eAmoxicillin and penicillin are commonly associated with susceptible Gram-positive bacteria.\u003c\/p\u003e\n\u003cp\u003eCiprofloxacin is generally considered for a wider range of Gram-negative bacterial concerns.\u003c\/p\u003e\n\u003cp\u003eSMZ\/TMP combines sulfamethoxazole and trimethoprim, while metronidazole is more closely associated with anaerobic organisms and certain protozoa than with ordinary bacterial fin problems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-step\"\u003e\n\u003cdiv class=\"cvs-step-number\"\u003e4\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eChoose a Form You Can Prepare Accurately\u003c\/h3\u003e\n\u003cp\u003eCapsules can usually be opened and mixed into aquarium water.\u003c\/p\u003e\n\u003cp\u003eTablets may be pre-dissolved or dispersed according to the individual label.\u003c\/p\u003e\n\u003cp\u003eChoose the strength and format that allow you to calculate the actual treatment-water volume accurately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-step\"\u003e\n\u003cdiv class=\"cvs-step-number\"\u003e5\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eConfirm Freshwater or Saltwater Compatibility\u003c\/h3\u003e\n\u003cp\u003eMany products in this collection are presented for freshwater and saltwater treatment systems.\u003c\/p\u003e\n\u003cp\u003eThe safer approach is still to use a dedicated hospital tank rather than treating a planted community aquarium or reef display containing sensitive invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"cvs-subtitle\"\u003eIngredient Groups at a Glance\u003c\/h3\u003e\n\u003cdiv class=\"cvs-spectrum-grid\"\u003e\n\u003cdiv class=\"cvs-spectrum-card\"\u003e\n\u003cspan class=\"cvs-spectrum-label\"\u003eCommon bacterial options\u003c\/span\u003e\n\u003ch3\u003eAmoxicillin, Cephalexin, Penicillin \u0026amp; Clindamycin\u003c\/h3\u003e\n\u003cp\u003eThese ingredients are commonly compared for certain susceptible bacterial concerns involving fins, skin, mouth tissue, wounds, ulcers, and other soft-tissue signs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-spectrum-card\"\u003e\n\u003cspan class=\"cvs-spectrum-label\"\u003eWider Gram-negative considerations\u003c\/span\u003e\n\u003ch3\u003eCiprofloxacin, Doxycycline, Azithromycin \u0026amp; SMZ\/TMP\u003c\/h3\u003e\n\u003cp\u003eThese products may be considered for different bacterial activity profiles, including certain persistent or Gram-negative concerns, according to diagnosis and label instructions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-spectrum-card\"\u003e\n\u003cspan class=\"cvs-spectrum-label\"\u003eDifferent activity profile\u003c\/span\u003e\n\u003ch3\u003eMetronidazole\u003c\/h3\u003e\n\u003cp\u003eMetronidazole is generally associated with certain anaerobic organisms and protozoal concerns, including Hexamita and Spironucleus, rather than ordinary external bacterial fin problems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-tip\"\u003e\n\u003cp\u003e\u003cstrong\u003eResponsible Selection:\u003c\/strong\u003e Keeping a product available does not mean it should be used automatically. Avoid changing ingredients repeatedly or combining products without understanding the likely cause. When symptoms spread, return, or fail to improve, seek aquatic or avian professional guidance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"cvs-section\" id=\"buying-shipping\"\u003e\n\u003ch2 class=\"cvs-section-title\"\u003eBuying Fish \u0026amp; Bird Antibacterials Online\u003c\/h2\u003e\n\u003cp\u003eOrdering in advance allows aquarium keepers to keep an appropriate, clearly labeled product available rather than beginning the search only after symptoms appear.\u003c\/p\u003e\n\u003cp\u003eA severe, rapidly spreading, recurring, or unclear problem still requires professional evaluation, and every pet-bird treatment plan should be established by an avian veterinarian.\u003c\/p\u003e\n\u003cdiv class=\"cvs-shipping-grid\"\u003e\n\u003cdiv class=\"cvs-feature-card\"\u003e\n\u003ch3\u003eUnited States Warehouse\u003c\/h3\u003e\n\u003cp\u003eProducts in this collection ship from our United States warehouse rather than waiting for an overseas order.\u003c\/p\u003e\n\u003cp\u003eBottles are supplied with clearly printed ingredients, strengths, storage information, and expiration dates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-feature-card\"\u003e\n\u003ch3\u003eSame-Day Dispatch Schedule\u003c\/h3\u003e\n\u003cp\u003eQualifying in-stock orders placed before 1:30 p.m. CT, Monday through Friday, may dispatch the same business day.\u003c\/p\u003e\n\u003cp\u003eOrders placed after the cutoff, during a weekend, or on a holiday process on the next available business day.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-feature-card\"\u003e\n\u003ch3\u003eRates and Delivery Estimates\u003c\/h3\u003e\n\u003cp\u003eShipping costs and estimated delivery times are calculated at checkout according to the destination and selected USPS or UPS service.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/pages\/shipping-policy\"\u003eReview Shipping Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-feature-card\"\u003e\n\u003ch3\u003eReturns and Order Issues\u003c\/h3\u003e\n\u003cp\u003eEligible products may qualify for a return or exchange within 30 days according to the current California Vet Supply store guidelines.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/pages\/refund-policy\"\u003eReview Refund Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"cvs-section\" id=\"responsible-use\"\u003e\n\u003ch2 class=\"cvs-section-title\"\u003eHow to Use Fish \u0026amp; Bird Antibacterials Responsibly\u003c\/h2\u003e\n\u003cp\u003eThe directions printed on the current product label take priority over general collection information.\u003c\/p\u003e\n\u003cp\u003eSeveral basic practices apply across most aquarium treatment plans and help prevent treatment from creating additional problems.\u003c\/p\u003e\n\u003cdiv class=\"cvs-responsible-grid\"\u003e\n\u003cdiv class=\"cvs-responsible-card\"\u003e\n\u003ch3\u003eTreat in a Hospital Tank\u003c\/h3\u003e\n\u003cp\u003eA separate hospital or quarantine tank limits exposure of healthy animals, allows closer observation, and protects plants, invertebrates, and the main aquarium's biological filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-responsible-card\"\u003e\n\u003ch3\u003eRemove Carbon and Review UV Use\u003c\/h3\u003e\n\u003cp\u003eActivated carbon and other chemical media may remove treatment from the water. Remove them when directed and switch off UV sterilization when required by the individual product label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-responsible-card\"\u003e\n\u003ch3\u003eMonitor Water Throughout Treatment\u003c\/h3\u003e\n\u003cp\u003eTest ammonia and nitrite, maintain stable temperature, provide strong aeration, and perform appropriate water changes when the treatment plan requires them.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-responsible-card\"\u003e\n\u003ch3\u003eFinish the Course and Avoid Mixing\u003c\/h3\u003e\n\u003cp\u003eComplete the label-directed treatment unless a veterinarian advises otherwise. Do not combine multiple products or rotate ingredients without professional guidance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-reminder\"\u003e\n\u003cstrong\u003eReminder:\u003c\/strong\u003e Antibacterial treatments do not treat fungal, viral, or parasitic conditions such as ich, flukes, worms, or true fungal growth. Using the wrong type of treatment may stress the animal and delay the care that would actually address the problem.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"cvs-section\" id=\"why-california-vet-supply\"\u003e\n\u003ch2 class=\"cvs-section-title\"\u003eWhy Choose California Vet Supply\u003c\/h2\u003e\n\u003cp\u003eCalifornia Vet Supply brings the Aqua Soma Labs Fix range together in one collection so aquarium keepers and bird owners can compare active ingredients, strengths, formats, and current product options in one place.\u003c\/p\u003e\n\u003cdiv class=\"cvs-why-grid\"\u003e\n\u003cdiv class=\"cvs-why-card\"\u003e\n\u003cdiv class=\"cvs-why-number\"\u003e01\u003c\/div\u003e\n\u003ch3\u003eGenuine Fix Line Products\u003c\/h3\u003e\n\u003cp\u003eProducts are supplied in their original Aqua Soma Labs Fix packaging with the ingredient, strength, storage information, and warnings printed on the label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-why-card\"\u003e\n\u003cdiv class=\"cvs-why-number\"\u003e02\u003c\/div\u003e\n\u003ch3\u003eClear Strengths and Current Dates\u003c\/h3\u003e\n\u003cp\u003eProduct listings clearly separate the available strengths and bottle counts so shoppers can match the correct option without relying only on a familiar nickname.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-why-card\"\u003e\n\u003cdiv class=\"cvs-why-number\"\u003e03\u003c\/div\u003e\n\u003ch3\u003eUnited States Dispatch\u003c\/h3\u003e\n\u003cp\u003eIn-stock orders ship from a United States warehouse according to the current California Vet Supply processing schedule.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-why-card\"\u003e\n\u003cdiv class=\"cvs-why-number\"\u003e04\u003c\/div\u003e\n\u003ch3\u003eThe Full Line in One Collection\u003c\/h3\u003e\n\u003cp\u003eCompare amoxicillin, cephalexin, doxycycline, ciprofloxacin, metronidazole, clindamycin, SMZ\/TMP, penicillin, and azithromycin without searching multiple sellers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"cvs-section\" id=\"faq\"\u003e\n\u003ch2 class=\"cvs-section-title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"cvs-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat are fish antibacterial treatments?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eFish antibacterial treatments are capsules or tablets labeled for certain suspected bacterial problems in ornamental aquarium fish. Individual products contain ingredients such as amoxicillin, cephalexin, doxycycline, ciprofloxacin, penicillin, clindamycin, azithromycin, or SMZ\/TMP.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhich fish antibacterial should I choose?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eChoose according to the likely cause, active ingredient, fish symptoms, actual treatment-water volume, and the current product label.\u003c\/p\u003e\n\u003cp\u003eWhen the cause is uncertain, correct water-quality problems first and seek guidance from an aquatic professional rather than selecting only by popularity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhere can I buy fish and bird antibacterials online?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eCalifornia Vet Supply offers the Aqua Soma Labs Fix line through this online collection, with individual listings for the available ingredients, strengths, and bottle sizes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow fast do orders ship, and where do they ship from?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eIn-stock orders ship from our United States warehouse. Qualifying orders placed before 1:30 p.m. CT, Monday through Friday, may dispatch the same business day.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo these products work in freshwater and saltwater treatment tanks?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eMany products in this collection are presented for freshwater and saltwater hospital tanks. Always confirm compatibility on the current individual product label before use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eShould I treat fish in the display tank or a hospital tank?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eA separate hospital or quarantine tank is strongly preferred. It allows more accurate treatment and protects healthy fish, plants, sensitive invertebrates, and the main aquarium's biological filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need to remove activated carbon or switch off UV?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eActivated carbon and other chemical filtration media may remove treatment from aquarium water and are commonly removed during treatment.\u003c\/p\u003e\n\u003cp\u003eUV sterilization may also need to be switched off. Follow the current directions for the specific product.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill antibacterial treatment harm the biofilter?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eSome antibacterial treatments may disturb beneficial filtration bacteria. Use a separate treatment tank whenever possible and monitor ammonia and nitrite throughout treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I calculate the amount by aquarium size?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eFollow the individual product label and calculate using the actual water volume being treated.\u003c\/p\u003e\n\u003cp\u003eSubstrate, rocks, decorations, filters, and the aquarium fill level reduce the real water volume compared with the advertised tank capacity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long does a typical treatment last?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eTreatment length differs by ingredient and label. Many aquarium treatment plans run for several consecutive days, but the exact schedule on the current product bottle must be followed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow quickly should I see improvement?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eSome fish may show improving appetite, activity, breathing, fin condition, or reduced lesion progression within several days.\u003c\/p\u003e\n\u003cp\u003eStop and reassess according to the label when the fish worsen or no improvement appears within the stated evaluation period.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I combine two different antibacterial treatments?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eDo not combine products unless the labels permit the combination or a qualified aquatic or avian veterinarian specifically recommends it.\u003c\/p\u003e\n\u003cp\u003eCombining treatments may increase animal stress, disturb water quality, or make reactions harder to identify.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat are the main differences between the ingredients?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eEach ingredient has a different activity profile. Amoxicillin, cephalexin, penicillin, clindamycin, doxycycline, ciprofloxacin, azithromycin, and SMZ\/TMP are compared for different bacterial situations.\u003c\/p\u003e\n\u003cp\u003eMetronidazole is more closely associated with certain anaerobic organisms and protozoal concerns.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo fish antibacterials treat fungal or parasitic problems?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eNo. Antibacterial products should not be expected to treat true fungal infections, ich, flukes, worms, viral disease, or other non-bacterial problems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these products be used for pet birds?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eSelected products may be considered for non-food pet birds only under avian veterinary guidance.\u003c\/p\u003e\n\u003cp\u003eThe veterinarian must choose the product and determine the amount, administration method, frequency, and duration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these products with shrimp, snails, corals, or live plants?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eTreat affected fish in a separate hospital tank whenever possible. Sensitivity varies, and antibacterial treatment may harm invertebrates, disturb plants, or disrupt the display aquarium ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these products intended for food fish or food-producing birds?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eNo. Products in this collection are intended for ornamental aquarium fish and non-food pet birds only.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow should I store fish and bird antibacterial products?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eStore each product in its original, tightly closed container in a cool, dry location protected from direct sunlight, excessive heat, and moisture.\u003c\/p\u003e\n\u003cp\u003eKeep all products out of reach of children and animals and follow the storage temperature printed on the bottle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat happened to the older Thomas Labs fish products?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003eMany older Thomas Labs names were discontinued. The Aqua Soma Labs Fix line is presented as the current replacement range using familiar ingredients, strengths, and updated Fix branding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat signs may suggest a bacterial problem in aquarium fish?\u003c\/summary\u003e\n\u003cdiv class=\"cvs-faq-answer\"\u003e\n\u003cp\u003ePossible signs include frayed fins, open sores, ulcers, red streaking, cloudy eyes, mouth damage, swelling, appetite loss, reduced activity, and lesions that continue after water quality has been corrected.\u003c\/p\u003e\n\u003cp\u003eThese signs are not proof of a bacterial cause and may also result from parasites, fungus, injury, toxins, or poor environmental conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"cvs-section\" id=\"full-fix-line\"\u003e\n\u003ch2 class=\"cvs-section-title\"\u003eBrowse the Full Fix Line\u003c\/h2\u003e\n\u003cdiv class=\"cvs-product-grid\"\u003e\n\u003cdiv class=\"cvs-product-card\"\u003e\n\u003cspan class=\"cvs-product-tag\"\u003eAmoxicillin\u003c\/span\u003e\n\u003ch3\u003eFix Mox 250 mg \/ 500 mg\u003c\/h3\u003e\n\u003cp\u003eAmoxicillin capsules known to aquarium keepers as Fish Mox, available in multiple strengths and bottle counts.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-mox\"\u003eShop Fix Mox → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-product-card\"\u003e\n\u003cspan class=\"cvs-product-tag\"\u003eCephalexin\u003c\/span\u003e\n\u003ch3\u003eFix Flex 250 mg \/ 500 mg\u003c\/h3\u003e\n\u003cp\u003eCephalexin capsules commonly compared for fin deterioration, ulcers, infected wounds, and bacterial skin concerns.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flex\"\u003eShop Fix Flex → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-product-card\"\u003e\n\u003cspan class=\"cvs-product-tag\"\u003eDoxycycline\u003c\/span\u003e\n\u003ch3\u003eFix Doxy 100 mg\u003c\/h3\u003e\n\u003cp\u003eDoxycycline tablets for ornamental fish and selected veterinarian-directed non-food pet-bird care.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-doxy\"\u003eShop Fix Doxy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-product-card\"\u003e\n\u003cspan class=\"cvs-product-tag\"\u003eCiprofloxacin\u003c\/span\u003e\n\u003ch3\u003eFix Flox 500 mg\u003c\/h3\u003e\n\u003cp\u003eCiprofloxacin capsules considered for certain persistent and Gram-negative bacterial concerns in ornamental aquarium fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flox\"\u003eShop Fix Flox → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-product-card\"\u003e\n\u003cspan class=\"cvs-product-tag\"\u003eMetronidazole\u003c\/span\u003e\n\u003ch3\u003eFix Zole 250 mg \/ 500 mg\u003c\/h3\u003e\n\u003cp\u003eMetronidazole tablets used for certain anaerobic-sensitive organisms and protozoal concerns such as Hexamita and Spironucleus.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zole\"\u003eShop Fix Zole → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-product-card\"\u003e\n\u003cspan class=\"cvs-product-tag\"\u003eClindamycin\u003c\/span\u003e\n\u003ch3\u003eFix Cin 150 mg\u003c\/h3\u003e\n\u003cp\u003eClindamycin capsules considered for certain bacterial skin, mouth, wound, lesion, and soft-tissue concerns.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-cin\"\u003eShop Fix Cin → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-product-card\"\u003e\n\u003cspan class=\"cvs-product-tag\"\u003eSMZ\/TMP\u003c\/span\u003e\n\u003ch3\u003eFix Sulfa 960 mg\u003c\/h3\u003e\n\u003cp\u003eA dual-ingredient sulfamethoxazole and trimethoprim tablet for a range of susceptible bacterial concerns.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-sulfa\"\u003eShop Fix Sulfa → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-product-card\"\u003e\n\u003cspan class=\"cvs-product-tag\"\u003ePenicillin\u003c\/span\u003e\n\u003ch3\u003eFix Pen 500 mg\u003c\/h3\u003e\n\u003cp\u003ePenicillin V Potassium tablets considered for certain susceptible Gram-positive bacterial concerns in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-pen\"\u003eShop Fix Pen → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-product-card\"\u003e\n\u003cspan class=\"cvs-product-tag\"\u003eAzithromycin\u003c\/span\u003e\n\u003ch3\u003eFix Zithro 250 mg\u003c\/h3\u003e\n\u003cp\u003eAzithromycin tablets for selected fish bacterial concerns and veterinarian-directed care for non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zithro\"\u003eShop Fix Zithro → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-blog-banner\"\u003e\n\u003ch3\u003eFish \u0026amp; Bird Care Guides\u003c\/h3\u003e\n\u003cp\u003eVisit the California Vet Supply blog for aquarium water-quality information, hospital-tank guidance, product comparisons, and responsible fish and bird care tips.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/blogs\/fish-antibiotics\"\u003eRead the Care Blog → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"cvs-section\"\u003e\n\u003cdiv class=\"cvs-verification\"\u003e\n\u003cdiv class=\"cvs-verification-header\"\u003e\n\u003ch2\u003eTransparency \u0026amp; Verification\u003c\/h2\u003e\n\u003cp\u003eHow California Vet Supply reviews collection information\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-verification-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eWho is responsible for this page:\u003c\/strong\u003e The California Vet Supply editorial team responsible for reviewing and maintaining collection and product information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVerification snapshot:\u003c\/strong\u003e Ingredient names, product strengths, forms, intended species, and general safety information are reviewed against available product labels and specifications before publishing.\u003c\/p\u003e\n\u003ch3 class=\"cvs-subtitle\"\u003eHow We Verify Product Information\u003c\/h3\u003e\n\u003cdiv class=\"cvs-verification-grid\"\u003e\n\u003cdiv class=\"cvs-verification-card\"\u003e\n\u003ch3\u003eLabel-First Directions\u003c\/h3\u003e\n\u003cp\u003eThe physical bottle label is treated as the primary source for treatment amounts, frequency, duration, storage instructions, and warnings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-verification-card\"\u003e\n\u003ch3\u003eIngredient and Strength Checks\u003c\/h3\u003e\n\u003cp\u003eActive ingredients, capsule or tablet strengths, and bottle counts are cross-checked against available manufacturer information.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-verification-card\"\u003e\n\u003ch3\u003eCollection Consistency\u003c\/h3\u003e\n\u003cp\u003eProduct nicknames, active ingredients, forms, and links are reviewed for consistency across the collection and individual product pages.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-verification-card\"\u003e\n\u003ch3\u003eOngoing Updates\u003c\/h3\u003e\n\u003cp\u003eCollection information is updated when product labels, packaging, strengths, bottle counts, availability, or manufacturer details change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cvs-notice\"\u003e\n\u003cstrong\u003eWhat we do not do:\u003c\/strong\u003e We do not present one antibacterial as suitable for every aquarium problem, and we do not add product-specific treatment instructions that conflict with the current physical label.\u003c\/div\u003e\n\u003cp style=\"margin-top: 25px;\"\u003eSee information that does not match the product received? Please \u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.calvetsupply.com\/pages\/contact-us\" style=\"color: rgb(255, 128, 0);\"\u003econtact California Vet Supply\u003c\/a\u003e\u003ca class=\"cvs-contact-link\" href=\"\/pages\/contact\" style=\"color: rgb(255, 128, 0);\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e so the page can be reviewed and updated.\u003c\/p\u003e\n\u003cdiv class=\"cvs-educational-note\"\u003e\n\u003cstrong\u003eEducational use:\u003c\/strong\u003e This collection content is provided for general informational purposes only. It is not a substitute for diagnosis or advice from a qualified aquatic or avian veterinarian.\u003c\/div\u003e\n\u003cdiv class=\"cvs-review-date\"\u003eLast reviewed: July 11, 2026\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","products":[{"product_id":"fish-doxy","title":"Fish Doxy (Fix Doxy) Doxycycline 100mg Fish Antibacterial","description":"\u003cstyle\u003e\n  .fph-product-copy {\n    --fph-orange: #e37111;\n    --fph-teal: #148d85;\n    --fph-green: #64ad82;\n    --fph-dark: #09213f;\n    --fph-text: #24374e;\n    --fph-muted: #64748b;\n    --fph-border: #dce3eb;\n    --fph-light: #f5f8fa;\n    --fph-teal-light: #eef8f6;\n    --fph-orange-light: #fff6ed;\n    --fph-white: #ffffff;\n\n    width: 100%;\n    max-width: 1675px;\n    margin: 0 auto;\n    color: var(--fph-text);\n    font-family: inherit;\n    font-size: 17px;\n    line-height: 1.7;\n  }\n\n  .fph-product-copy,\n  .fph-product-copy * {\n    box-sizing: border-box;\n  }\n\n  .fph-product-copy section {\n    scroll-margin-top: 120px;\n  }\n\n  .fph-product-copy h1,\n  .fph-product-copy h2,\n  .fph-product-copy h3,\n  .fph-product-copy h4,\n  .fph-product-copy p {\n    color: inherit;\n  }\n\n  .fph-product-copy p {\n    margin: 0 0 18px;\n  }\n\n  .fph-product-copy strong {\n    font-weight: 750;\n  }\n\n  .fph-product-title {\n    margin: 0 0 26px;\n    color: var(--fph-dark) !important;\n    font-size: clamp(34px, 4vw, 52px);\n    font-weight: 800;\n    line-height: 1.12;\n    letter-spacing: -0.025em;\n  }\n\n  .fph-section-title {\n    margin: 0 0 22px;\n    color: var(--fph-dark) !important;\n    font-size: clamp(29px, 3vw, 40px);\n    font-weight: 800;\n    line-height: 1.2;\n    letter-spacing: -0.02em;\n  }\n\n  .fph-subtitle {\n    margin: 30px 0 16px;\n    color: var(--fph-dark) !important;\n    font-size: 23px;\n    font-weight: 750;\n    line-height: 1.35;\n  }\n\n  .fph-lead {\n    color: #30445d !important;\n    font-size: 19px;\n    line-height: 1.8;\n  }\n\n  .fph-section {\n    padding: 55px 0;\n    border-top: 1px solid #edf0f3;\n  }\n\n  .fph-section:first-of-type {\n    border-top: 0;\n  }\n\n  \/* On-page navigation *\/\n\n  .fph-toc {\n    display: flex;\n    align-items: center;\n    gap: 10px;\n    margin: 0 0 45px;\n    padding: 4px 0 10px;\n    overflow-x: auto;\n    scrollbar-width: none;\n  }\n\n  .fph-toc::-webkit-scrollbar {\n    display: none;\n  }\n\n  .fph-toc-label {\n    flex: 0 0 auto;\n    margin-right: 4px;\n    color: var(--fph-dark);\n    font-weight: 800;\n    white-space: nowrap;\n  }\n\n  .fph-toc a {\n    flex: 0 0 auto;\n    display: inline-flex;\n    align-items: center;\n    min-height: 48px;\n    padding: 10px 21px;\n    border: 1px solid var(--fph-border);\n    border-radius: 999px;\n    background: #f8fafc;\n    color: var(--fph-dark);\n    font-size: 16px;\n    font-weight: 500;\n    line-height: 1.2;\n    text-decoration: none;\n    white-space: nowrap;\n  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.fph-order-note {\n    margin-top: 25px;\n    padding: 24px;\n    border: 1px solid #cde4de;\n    border-radius: 17px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-order-note p:last-child {\n    margin-bottom: 0;\n  }\n\n  \/* Comparison *\/\n\n  .fph-comparison-grid {\n    display: grid;\n    grid-template-columns: repeat(4, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 28px;\n  }\n\n  .fph-comparison-card {\n    padding: 25px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: linear-gradient(145deg, #eef8f6 0%, #ffffff 100%);\n  }\n\n  .fph-comparison-card .fph-small-label {\n    display: block;\n    margin-bottom: 9px;\n    color: var(--fph-teal);\n    font-size: 12px;\n    font-weight: 800;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n  }\n\n  .fph-comparison-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark) !important;\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-comparison-card p {\n    margin: 0;\n    color: var(--fph-muted);\n  }\n\n  \/* Benefits *\/\n\n  .fph-benefits-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 28px;\n  }\n\n  .fph-benefit-card {\n    padding: 28px;\n    border: 1px solid var(--fph-border);\n    border-radius: 19px;\n    background: var(--fph-white);\n    box-shadow: 0 8px 28px rgba(15, 42, 70, 0.06);\n    transition:\n      transform 0.3s ease,\n      box-shadow 0.3s ease;\n  }\n\n  .fph-benefit-card:hover {\n    transform: translateY(-5px);\n    box-shadow: 0 15px 38px rgba(15, 42, 70, 0.11);\n  }\n\n  .fph-benefit-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 45px;\n    height: 45px;\n    margin-bottom: 18px;\n    border-radius: 50%;\n    background: var(--fph-orange);\n    color: var(--fph-white);\n    font-size: 15px;\n    font-weight: 800;\n  }\n\n  .fph-benefit-card:nth-child(2n) .fph-benefit-number {\n    background: var(--fph-teal);\n  }\n\n  .fph-benefit-card:nth-child(3n) .fph-benefit-number {\n    background: var(--fph-green);\n  }\n\n  .fph-benefit-card h3 {\n    margin: 0 0 11px;\n    color: var(--fph-dark) !important;\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-benefit-card p {\n    margin: 0;\n    color: var(--fph-muted);\n  }\n\n  \/* Usage steps *\/\n\n  .fph-directions-label {\n    margin: 0 0 22px;\n    color: var(--fph-teal);\n    font-size: 21px;\n    font-weight: 800;\n  }\n\n  .fph-steps {\n    display: grid;\n    gap: 18px;\n  }\n\n  .fph-step {\n    display: grid;\n    grid-template-columns: 62px minmax(0, 1fr);\n    gap: 18px;\n    padding: 25px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: #f1f9f7;\n  }\n\n  .fph-step-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 48px;\n    height: 48px;\n    border-radius: 50%;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-size: 19px;\n    font-weight: 800;\n  }\n\n  .fph-step h3 {\n    margin: 2px 0 9px;\n    color: var(--fph-dark) !important;\n    font-size: 22px;\n    line-height: 1.35;\n  }\n\n  .fph-step p:last-child {\n    margin-bottom: 0;\n  }\n\n  \/* Tables *\/\n\n  .fph-table-wrapper {\n    margin-top: 30px;\n    overflow-x: auto;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n  }\n\n  .fph-table {\n    width: 100%;\n    min-width: 570px;\n    border-collapse: collapse;\n    background: var(--fph-white);\n  }\n\n  .fph-table th,\n  .fph-table td {\n    padding: 16px 19px;\n    border-bottom: 1px solid var(--fph-border);\n    text-align: left;\n    vertical-align: top;\n  }\n\n  .fph-table th {\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-weight: 750;\n  }\n\n  .fph-table tr:nth-child(even) td {\n    background: #f7f9fa;\n  }\n\n  .fph-table tr:last-child td {\n    border-bottom: 0;\n  }\n\n  \/* Timeline *\/\n\n  .fph-timeline {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 25px;\n  }\n\n  .fph-timeline-card {\n    padding: 25px;\n    border-radius: 18px;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n  }\n\n  .fph-timeline-card:nth-child(2) {\n    background: var(--fph-green);\n  }\n\n  .fph-timeline-card:nth-child(3) {\n    background: var(--fph-orange);\n  }\n\n  .fph-timeline-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-white) !important;\n    font-size: 22px;\n  }\n\n  .fph-timeline-card p {\n    margin: 0;\n    color: var(--fph-white) !important;\n  }\n\n  .fph-pro-tip {\n    margin-top: 22px;\n    padding: 22px 24px;\n    border-radius: 17px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-dark) 0%,\n      var(--fph-teal) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-pro-tip p {\n    margin: 0;\n    color: var(--fph-white) !important;\n  }\n\n  \/* Safety *\/\n\n  .fph-safety-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 27px;\n  }\n\n  .fph-safety-card {\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n  }\n\n  .fph-safety-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-teal) !important;\n    font-size: 22px;\n  }\n\n  .fph-safety-card p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-warning {\n    margin-top: 22px;\n    padding: 25px;\n    border: 1px solid #efc49c;\n    border-radius: 18px;\n    background: var(--fph-orange-light);\n  }\n\n  .fph-warning h3 {\n    margin: 0 0 10px;\n    color: #a84b06 !important;\n    font-size: 22px;\n  }\n\n  .fph-warning p:last-child {\n    margin-bottom: 0;\n  }\n\n  \/* Shipping *\/\n\n  .fph-policy-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 26px;\n  }\n\n  .fph-policy-card {\n    padding: 27px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-light);\n  }\n\n  .fph-policy-card h3 {\n    margin: 0 0 11px;\n    color: var(--fph-dark) !important;\n    font-size: 22px;\n  }\n\n  .fph-policy-card a {\n    display: inline-flex;\n    align-items: center;\n    gap: 7px;\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-policy-card a:hover {\n    text-decoration: underline;\n  }\n\n  \/* FAQ *\/\n\n  .fph-faq {\n    display: grid;\n    gap: 12px;\n    margin-top: 27px;\n  }\n\n  .fph-faq details {\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 15px;\n    background: var(--fph-white);\n  }\n\n  .fph-faq summary {\n    position: relative;\n    padding: 19px 58px 19px 21px;\n    color: var(--fph-dark);\n    font-weight: 750;\n    cursor: pointer;\n    list-style: none;\n  }\n\n  .fph-faq summary::-webkit-details-marker {\n    display: none;\n  }\n\n  .fph-faq summary::after {\n    content: \"+\";\n    position: absolute;\n    top: 50%;\n    right: 21px;\n    color: var(--fph-teal);\n    font-size: 27px;\n    font-weight: 400;\n    line-height: 1;\n    transform: translateY(-50%);\n  }\n\n  .fph-faq details[open] summary::after {\n    content: \"−\";\n  }\n\n  .fph-faq details[open] summary {\n    background: var(--fph-teal-light);\n  }\n\n  .fph-faq-answer {\n    padding: 0 21px 20px;\n    color: var(--fph-muted);\n  }\n\n  .fph-faq-answer p:last-child {\n    margin-bottom: 0;\n  }\n\n  \/* Related products *\/\n\n  .fph-related-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 27px;\n  }\n\n  .fph-related-card {\n    display: flex;\n    flex-direction: column;\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n    box-shadow: 0 7px 24px rgba(15, 42, 70, 0.05);\n  }\n\n  .fph-related-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark) !important;\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-related-card p {\n    flex: 1;\n    color: var(--fph-muted);\n  }\n\n  .fph-related-card a {\n    display: inline-flex;\n    align-items: center;\n    gap: 7px;\n    margin-top: auto;\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-related-card a:hover {\n    text-decoration: underline;\n  }\n\n  .fph-browse-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 20px;\n  }\n\n  .fph-browse-card {\n    padding: 26px;\n    border-radius: 18px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card:nth-child(2) {\n    background: linear-gradient(\n      135deg,\n      var(--fph-orange) 0%,\n      #f09a47 100%\n    );\n  }\n\n  .fph-browse-card h3,\n  .fph-browse-card p,\n  .fph-browse-card a {\n    color: var(--fph-white) !important;\n  }\n\n  .fph-browse-card h3 {\n    margin: 0 0 9px;\n    font-size: 22px;\n  }\n\n  .fph-browse-card a {\n    font-weight: 800;\n  }\n\n  \/* Transparency section *\/\n\n  .fph-image-note {\n    margin-top: 40px;\n    padding: 16px 20px;\n    border: 1px dashed var(--fph-border);\n    border-radius: 14px;\n    background: #fafbfc;\n    text-align: center;\n    font-weight: 700;\n  }\n\n  .fph-verification {\n    margin-top: 30px;\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 20px;\n    background: var(--fph-white);\n  }\n\n  .fph-verification-header {\n    padding: 25px;\n    background: var(--fph-dark);\n    color: var(--fph-white);\n  }\n\n  .fph-verification-header h2 {\n    margin: 0 0 7px;\n    color: var(--fph-white) !important;\n    font-size: 29px;\n  }\n\n  .fph-verification-header p {\n    margin: 0;\n    color: rgba(255, 255, 255, 0.88) !important;\n  }\n\n  .fph-verification-body {\n    padding: 27px;\n  }\n\n  .fph-verification-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin: 24px 0;\n  }\n\n  .fph-verification-card {\n    padding: 23px;\n    border: 1px solid #cfe2df;\n    border-radius: 16px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-verification-card h3 {\n    margin: 0 0 9px;\n    color: var(--fph-teal) !important;\n    font-size: 20px;\n  }\n\n  .fph-verification-card p {\n    margin: 0;\n  }\n\n  .fph-contact-link {\n    color: var(--fph-orange);\n    font-weight: 750;\n  }\n\n  .fph-educational-note {\n    margin-top: 24px;\n    padding: 20px 22px;\n    border-radius: 15px;\n    background: #eef3f7;\n    color: #42566d;\n    font-size: 15px;\n  }\n\n  @media (max-width: 1050px) {\n    .fph-comparison-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n\n    .fph-benefits-grid,\n    .fph-related-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n  }\n\n  @media (max-width: 749px) {\n    .fph-product-copy {\n      font-size: 16px;\n      line-height: 1.65;\n    }\n\n    .fph-product-title {\n      margin-bottom: 22px;\n      font-size: 33px;\n    }\n\n    .fph-section {\n      padding: 39px 0;\n    }\n\n    .fph-section-title {\n      font-size: 28px;\n    }\n\n    .fph-toc {\n      margin-bottom: 30px;\n    }\n\n    .fph-toc-label {\n      display: none;\n    }\n\n    .fph-toc a {\n      min-height: 44px;\n      padding: 9px 17px;\n      font-size: 15px;\n    }\n\n    .fph-glance {\n      margin-bottom: 38px;\n      border-radius: 16px;\n    }\n\n    .fph-glance-heading {\n      padding: 18px;\n      font-size: 21px;\n    }\n\n    .fph-glance-row {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-glance-label {\n      padding-bottom: 7px;\n    }\n\n    .fph-glance-value {\n      padding-top: 7px;\n    }\n\n    .fph-two-column,\n    .fph-comparison-grid,\n    .fph-benefits-grid,\n    .fph-timeline,\n    .fph-safety-grid,\n    .fph-policy-grid,\n    .fph-related-grid,\n    .fph-browse-grid,\n    .fph-verification-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-step {\n      grid-template-columns: 48px minmax(0, 1fr);\n      gap: 14px;\n      padding: 20px;\n    }\n\n    .fph-step-number {\n      width: 43px;\n      height: 43px;\n      font-size: 17px;\n    }\n\n    .fph-step h3 {\n      font-size: 20px;\n    }\n\n    .fph-benefit-card,\n    .fph-related-card,\n    .fph-info-box,\n    .fph-policy-card {\n      padding: 22px;\n    }\n  }\n\n  @media (prefers-reduced-motion: reduce) {\n    .fph-product-copy *,\n    .fph-product-copy *::before,\n    .fph-product-copy *::after {\n      scroll-behavior: auto !important;\n      transition: none !important;\n      animation: none !important;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"fph-product-copy\"\u003e\n\u003csection class=\"fph-section\" id=\"overview\"\u003e\n\u003ch1 class=\"fph-product-title\"\u003eFix Doxy (Fish Doxy) Doxycycline Tablets - 100 mg\u003c\/h1\u003e\n\u003cnav class=\"fph-toc\" aria-label=\"On this page\"\u003e\u003cspan class=\"fph-toc-label\"\u003eOn this page:\u003c\/span\u003e \u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e \u003ca href=\"#fish-doxy-vs-fix-doxy\"\u003eFish Doxy vs Fix Doxy\u003c\/a\u003e \u003ca href=\"#benefits\"\u003eBenefits\u003c\/a\u003e \u003ca href=\"#usage\"\u003eUsage\u003c\/a\u003e \u003ca href=\"#how-it-works\"\u003eHow It Works\u003c\/a\u003e \u003ca href=\"#safety\"\u003eSafety\u003c\/a\u003e \u003ca href=\"#shipping\"\u003eShipping\u003c\/a\u003e \u003ca href=\"#faq\"\u003eFAQ\u003c\/a\u003e\u003c\/nav\u003e\n\u003cdiv class=\"fph-glance\"\u003e\n\u003cdiv class=\"fph-glance-heading\"\u003eFix Doxy at a Glance\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eFor\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eOrnamental aquarium fish and non-food pet birds\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eHelps with\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFin and tail rot, columnaris, gill disease, septicemia, and avian respiratory infections\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eForm\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eTablets, 100 mg each\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eCount sizes\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003e30-count and 60-count bottles\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eWater type\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFreshwater and saltwater\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eMade in\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eUnited States, by Aqua Soma Labs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"fph-lead\"\u003e\u003cstrong\u003eFix Doxy delivers doxycycline hyclate 100 mg per tablet\u003c\/strong\u003e for ornamental aquarium fish and non-food pet birds, made by Aqua Soma Labs. It is used when bacterial problems appear, such as fin and tail rot, columnaris (often seen as cotton wool disease), bacterial hemorrhagic septicemia, and other internal bacterial infections in freshwater and saltwater aquariums.\u003c\/p\u003e\n\u003cp\u003eIt is also chosen for racing pigeons and other pet birds during respiratory infections, mycoplasmosis (mycoplasma), or suspected chlamydiosis, also known as parrot fever, psittacosis, or ornithosis.\u003c\/p\u003e\n\u003cp\u003eIf you used to buy the discontinued Thomas Labs Fish Doxy, Aqua Doxy, or older Bird Biotic, Fix Doxy is the online replacement. It supplies the same doxycycline strength in bottles of 30 or 60 tablets with fresh expiration dates, and it is a straightforward option when you need doxycycline for birds or a fish doxycycline product to buy online.\u003c\/p\u003e\n\u003cp\u003eUse Fix Doxy when you notice early signs of bacterial stress in your fish or pet birds. Common symptoms differ between species, so check the lists below to identify what to watch for.\u003c\/p\u003e\n\u003cdiv class=\"fph-two-column\"\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eFish-Specific Symptoms\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eClamped or frayed fins (fin and tail rot)\u003c\/li\u003e\n\u003cli\u003eSlime disease, mouth fungus, or mouth rot\u003c\/li\u003e\n\u003cli\u003eColumnaris (cotton wool disease)\u003c\/li\u003e\n\u003cli\u003eRed or cloudy patches on the body\u003c\/li\u003e\n\u003cli\u003eBacterial hemorrhagic septicemia\u003c\/li\u003e\n\u003cli\u003eGill disease or labored gill movement\u003c\/li\u003e\n\u003cli\u003eLoss of appetite or hiding behavior\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eBird-Specific Symptoms\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRespiratory infections: sneezing, wheezing, or nasal discharge\u003c\/li\u003e\n\u003cli\u003eMycoplasmosis (mycoplasma)\u003c\/li\u003e\n\u003cli\u003eChlamydiosis, ornithosis, psittacosis, or parrot fever\u003c\/li\u003e\n\u003cli\u003ePasteurellosis, commonly seen in pigeons\u003c\/li\u003e\n\u003cli\u003eFluffed-up feathers, lethargy, or inactivity\u003c\/li\u003e\n\u003cli\u003eEye infections or persistent loss of appetite\u003c\/li\u003e\n\u003cli\u003eChanges in droppings or vocalization\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 28px;\"\u003eAddressing potential bacterial issues early with doxycycline, together with good water quality and advice from an aquatic or avian professional when available, helps your fish and birds maintain a stable, healthy aquarium or aviary.\u003c\/p\u003e\n\u003cdiv class=\"fph-order-note\"\u003e\n\u003cp\u003e\u003cstrong\u003eOrder online and ship directly from our U.S. warehouse.\u003c\/strong\u003e Fix Doxy doxycycline 100 mg tablets are available to buy online with same-day dispatch on orders placed before 1:30 p.m. CT, Monday through Friday.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e This product is intended for aquarium and ornamental fish and pet birds only. It is not for animals used for food.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"fish-doxy-vs-fix-doxy\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFish Doxy vs Fix Doxy: What Changed?\u003c\/h2\u003e\n\u003cp\u003eIf you used to buy Fish Doxy, Aqua Doxy, or Bird Biotic from Thomas Labs, here is what stayed the same and what is different with Fix Doxy from Aqua Soma Labs.\u003c\/p\u003e\n\u003cdiv class=\"fph-comparison-grid\"\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eActive ingredient\u003c\/span\u003e\n\u003ch3\u003eSame Doxycycline\u003c\/h3\u003e\n\u003cp\u003eFix Doxy delivers the same doxycycline hyclate 100 mg per tablet that was used in the original Fish Doxy and Bird Biotic products.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eManufacturer\u003c\/span\u003e\n\u003ch3\u003eNew Manufacturer\u003c\/h3\u003e\n\u003cp\u003eFix Doxy is made by Aqua Soma Labs, replacing Thomas Labs, which discontinued its Fish Doxy and Bird Biotic lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eTablet format\u003c\/span\u003e\n\u003ch3\u003eSame Tablet Form\u003c\/h3\u003e\n\u003cp\u003e100 mg tablets with the same dosing style of one tablet per 15 gallons, so switching from Fish Doxy to Fix Doxy requires no changes to your routine.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003ePresentation\u003c\/span\u003e\n\u003ch3\u003eUpdated Packaging \u0026amp; Labeling\u003c\/h3\u003e\n\u003cp\u003eNew bottle design and labeling under the Fix brand, with the same doxycycline formula and fresh expiration dates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"benefits\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eBenefits of Fix Doxy for Fish \u0026amp; Birds\u003c\/h2\u003e\n\u003cdiv class=\"fph-benefits-grid\"\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch3\u003eTargets Common Bacterial Problems\u003c\/h3\u003e\n\u003cp\u003eHelps manage common bacterial problems such as fin and tail rot, columnaris, gill disease, septicemia, internal bacterial infections, and avian respiratory infections caused by certain Gram-positive and Gram-negative bacteria in both freshwater and saltwater aquariums.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch3\u003eMade in the United States\u003c\/h3\u003e\n\u003cp\u003eFix Doxy is manufactured by Aqua Soma Labs and ships from a U.S. warehouse with fresh expiration dates, so you receive a recently made product ready for your tank or aviary.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch3\u003eOne Solution for Fish \u0026amp; Birds\u003c\/h3\u003e\n\u003cp\u003eFix Doxy is formulated for ornamental aquarium fish and non-food pet birds, so one doxycycline product covers tanks and aviaries. Use it for individual treatment or a whole flock as appropriate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch3\u003eFixed 100 mg Tablets\u003c\/h3\u003e\n\u003cp\u003eEach tablet delivers a fixed 100 mg doxycycline amount. These fish doxycycline tablets make it easier to follow the charts and repeat treatments accurately across different tank volumes or bird sizes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e05\u003c\/div\u003e\n\u003ch3\u003eFlexible Use in Tanks \u0026amp; Feed\u003c\/h3\u003e\n\u003cp\u003eTablets are water-soluble and easy to crush, so you can dissolve them in a hospital or quarantine tank, or mix them with food or drinking water as directed. This helps when you need to treat sensitive fish or birds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e06\u003c\/div\u003e\n\u003ch3\u003eAvailable in 30-Count and 60-Count Bottles\u003c\/h3\u003e\n\u003cp\u003eChoose a 30-count bottle for a single treatment or a 60-count bottle for larger tanks, multiple birds, or repeat treatments, so you always have doxycycline on hand when needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e07\u003c\/div\u003e\n\u003ch3\u003eDirect Fish Doxy \u0026amp; Bird Biotic Replacement\u003c\/h3\u003e\n\u003cp\u003eFix Doxy replaces the discontinued Fish Doxy from Thomas Labs, Aqua Doxy, and Bird Biotic products. It delivers the same doxycycline hyclate 100 mg per tablet that hobbyists and breeders used before those lines were discontinued.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"usage\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eUsage Guidelines \u0026amp; Instructions\u003c\/h2\u003e\n\u003cdiv class=\"fph-directions-label\"\u003eDirections for Use:\u003c\/div\u003e\n\u003cdiv class=\"fph-steps\"\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e1\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003ePrepare a Separate Treatment Area\u003c\/h3\u003e\n\u003cp\u003eFor fish, set up a hospital or quarantine tank with clean, dechlorinated water so you can treat without disturbing the main display tank or its biofilter.\u003c\/p\u003e\n\u003cp\u003eAny aquarium doxycycline treatment works best in a separate tank, so remove activated carbon, resins, and UV sterilizers during dosing, as they can strip doxycycline from the water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e2\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eCalculate and Give the Dose\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFish:\u003c\/strong\u003e Check the dosing instructions on your Fix Doxy bottle. Label directions for 100 mg tablets typically call for one tablet, or 100 mg, per 15 gallons or 57 litres of water, repeated every 24 hours for several days.\u003c\/p\u003e\n\u003cp\u003ePre-dissolve the tablet in a small cup of tank water, then add it evenly around the treatment tank.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBirds:\u003c\/strong\u003e For companion birds, the amount is based on the bird's weight or the volume of treated drinking water. Crush the tablet and mix with soft food or a measured amount of drinking water only as directed on the packaging or by an avian veterinarian, making sure the bird receives the full intended amount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e3\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eMonitor Progress and Water Quality\u003c\/h3\u003e\n\u003cp\u003eWatch appetite, breathing, activity level, and fin or feather condition every day. If symptoms worsen or no improvement is seen after several days, contact a veterinarian.\u003c\/p\u003e\n\u003cp\u003eFor fish, perform partial water changes between doses if water quality declines, then re-dose for the new water volume.\u003c\/p\u003e\n\u003cp\u003eContinue treatment for the full number of days recommended on the label, usually around 5 to 10 days, unless your veterinarian advises otherwise, and never exceed label directions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eFix Doxy Amounts by Aquarium Size\u003c\/h3\u003e\n\u003cdiv class=\"fph-table-wrapper\"\u003e\n\u003ctable class=\"fph-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTank volume\u003c\/th\u003e\n\u003cth\u003e100 mg tablets per use\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e15 gallons (57 L)\u003c\/td\u003e\n\u003ctd\u003e1 tablet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30 gallons (114 L)\u003c\/td\u003e\n\u003ctd\u003e2 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e45 gallons (170 L)\u003c\/td\u003e\n\u003ctd\u003e3 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e60 gallons (227 L)\u003c\/td\u003e\n\u003ctd\u003e4 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e75 gallons (284 L)\u003c\/td\u003e\n\u003ctd\u003e5 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eThese figures follow the label directions of one dissolved tablet per 15 gallons of water. Dose by the water volume of your treatment tank, not by the number of fish. Give one dose every 24 hours with a partial water change between doses and round to the nearest practical tablet. The bottle label or your aquatic veterinarian takes priority over this quick-reference chart.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat to Expect During Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-timeline\"\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 1 to 2\u003c\/h3\u003e\n\u003cp\u003eFish may hide or eat less, and the water can look slightly discolored. This is normal early on. Keep dosing on schedule and keep aeration strong.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 3 to 5\u003c\/h3\u003e\n\u003cp\u003eLook for signs it is working: sores and red patches stop spreading, appetite starts to return, and breathing steadies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 5 to 10\u003c\/h3\u003e\n\u003cp\u003eEven if the fish are improving, finish the full number of days so the infection does not return. Afterward, run a partial water change and put activated carbon back in to clear leftover doxycycline.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eThe label says to discontinue use if no improvement is seen after five days. If there is no change by day five, or the fish look worse, stop and ask an aquatic veterinarian.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat You Need for Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003cp\u003eA little setup before the first dose saves trouble later.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA separate hospital or quarantine tank, so you are not treating the whole display\u003c\/li\u003e\n\u003cli\u003eA heater and an air stone or sponge filter for steady temperature and strong aeration\u003c\/li\u003e\n\u003cli\u003eAn ammonia and nitrite test kit to keep tabs on water quality\u003c\/li\u003e\n\u003cli\u003eA dechlorinator for water changes between doses\u003c\/li\u003e\n\u003cli\u003eA small net and a clean cup for gentle transfer and for dissolving each tablet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-pro-tip\"\u003e\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Keep a few extra Fix Doxy tablets on hand so you always have them ready at the first sign of bacterial stress. A quarantine tank with a heater and sponge filter makes treatment faster and protects your main system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"how-it-works\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eHow Fix Doxy Works\u003c\/h2\u003e\n\u003cp class=\"fph-lead\"\u003eFix Doxy uses doxycycline hyclate 100 mg per tablet to help control certain Gram-positive and Gram-negative bacteria linked with fin and tail rot, mouth rot, columnaris, gill disease, septicemia, and avian respiratory infections.\u003c\/p\u003e\n\u003cp\u003eThe tablets dissolve readily in aquarium water, and they can also be crushed and mixed with soft food or drinking water, which spreads the dose evenly through a treatment tank or across a flock.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"safety\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eSafety and Tank Notes\u003c\/h2\u003e\n\u003cp\u003eWhen used as directed, Fix Doxy usually causes no problems in ornamental fish and pet birds. As with any doxycycline product, incorrect amounts or prolonged use can increase the risk of side effects.\u003c\/p\u003e\n\u003cdiv class=\"fph-safety-grid\"\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eFish\u003c\/h3\u003e\n\u003cp\u003eDoxycycline-based fish treatments may cause temporary stress or hiding behavior, mild water discoloration, and reduced appetite during treatment.\u003c\/p\u003e\n\u003cp\u003eIf fish show severe distress such as rapid gill movement, loss of balance, or gasping at the surface, stop treatment and seek aquatic veterinary advice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eBirds\u003c\/h3\u003e\n\u003cp\u003eWhen doxycycline is given in food or drinking water, potential reactions can include decreased appetite, lethargy, or changes in droppings if the amount is too high or the bird is sensitive.\u003c\/p\u003e\n\u003cp\u003eIf your bird appears fluffed up, inactive, or stops eating, discontinue use and contact an avian veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eInvertebrates\u003c\/h3\u003e\n\u003cp\u003eDo not use Fix Doxy in tanks that contain shrimp, snails, or other invertebrates, as strong treatments may harm them.\u003c\/p\u003e\n\u003cp\u003eTreat fish in a separate hospital tank whenever possible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eSafe Use in Your System\u003c\/h3\u003e\n\u003cp\u003eWhenever possible, treat fish in a hospital or quarantine tank, remove activated carbon and UV sterilizers, and follow label directions for dose and duration.\u003c\/p\u003e\n\u003cp\u003eDo not mix Fix Doxy with other treatments unless advised by a veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-warning\"\u003e\n\u003ch3\u003eImportant Safety Warning\u003c\/h3\u003e\n\u003cp\u003eFix Doxy is intended for ornamental aquarium fish and non-food pet birds only. It is not for animals raised for food.\u003c\/p\u003e\n\u003cp\u003eStore the product in a cool, dry place away from children and pets. Always follow label directions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"shipping\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cdiv class=\"fph-policy-grid\"\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eShipping Policy\u003c\/h3\u003e\n\u003cp\u003eOrders ship from our U.S. warehouse within one business day via USPS or UPS, with rates and delivery times calculated at checkout.\u003c\/p\u003e\n\u003cp\u003eFor full shipping details, please review our shipping policy.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/shipping-policy\"\u003eReview Shipping Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eRefund Policy\u003c\/h3\u003e\n\u003cp\u003eIf there is an issue with your order, you may be able to return or exchange items within 30 days according to our store guidelines.\u003c\/p\u003e\n\u003cp\u003eBefore sending anything back, please review our refund policy carefully.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/refund-policy\"\u003eReview Refund Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"faq\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"fph-faq\"\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWhat is Fix Doxy used for?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Doxy is used for certain bacterial problems affecting ornamental aquarium fish and non-food pet birds. These may include fin and tail rot, columnaris, gill disease, bacterial septicemia, internal bacterial infections, and certain avian respiratory infections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWhat is in Fix Doxy (Fish Doxy)?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eEach Fix Doxy tablet provides doxycycline hyclate at a strength of 100 mg per tablet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWhat is the difference between Fish Doxy and Fix Doxy?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Doxy provides the same doxycycline hyclate strength of 100 mg per tablet. The primary differences are the manufacturer, packaging, branding, and labeling. Fix Doxy is made by Aqua Soma Labs, while the former Fish Doxy line was associated with Thomas Labs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eIs Fix Doxy a replacement for Bird Biotic?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Doxy is presented as the online replacement for the discontinued Bird Biotic product. It provides doxycycline hyclate in a 100 mg tablet form for ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eIs Bird Biotic still available, and is Fix Doxy a true replacement?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe older Thomas Labs Bird Biotic line was discontinued. Fix Doxy is offered as a replacement with the same doxycycline strength in an updated Aqua Soma Labs product.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eIs Fix Doxy the same as Aqua Doxy?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Doxy is intended to replace older Aqua Doxy products and provides doxycycline hyclate in the same 100 mg tablet format. Always check the current product label before use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eCan I use Fix Doxy for dogs, cats, or chickens?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eNo. This product is labeled for ornamental aquarium fish and non-food pet birds. It is not intended for dogs, cats, humans, or animals raised for food.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWhere can I buy doxycycline for fish online?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Doxy doxycycline 100 mg tablets can be ordered through this online store and shipped from our U.S. warehouse according to the current shipping policy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eIs Fix Doxy available in 500 mg?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThis Fix Doxy product contains 100 mg of doxycycline hyclate per tablet and is offered in 30-count and 60-count bottles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eHow do I know if my fish or bird might need a treatment like Fix Doxy?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003ePossible signs in fish include frayed fins, cloudy or red body patches, sores, abnormal gill movement, appetite loss, hiding, or symptoms associated with columnaris.\u003c\/p\u003e\n\u003cp\u003ePossible signs in birds include sneezing, wheezing, nasal discharge, fluffed feathers, lethargy, eye irritation, appetite loss, or changes in droppings. Similar symptoms may have different causes, so professional diagnosis is recommended when available.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long should I treat with Fix Doxy 100 mg?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFollow the current bottle label. Treatment may generally continue for approximately 5 to 10 days unless a veterinarian advises otherwise. The supplied information states that treatment should be stopped and professional guidance requested if no improvement is seen after five days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat size aquarium can one Fix Doxy tablet treat?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied label guidance uses one 100 mg tablet for every 15 gallons, or approximately 57 litres, of treatment water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eDoes Fix Doxy work in saltwater aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Doxy is presented for use with ornamental fish in freshwater and saltwater treatment systems. A separate hospital tank is recommended whenever possible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use Fix Doxy in my main display or community tank?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eA separate hospital or quarantine tank is preferred. This helps protect the main biological filter, prevents exposure of sensitive invertebrates, and makes it easier to monitor the treated fish and water quality.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWill Fix Doxy harm my aquarium's biofilter?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAntibacterial treatments may affect beneficial filter bacteria. Monitor ammonia and nitrite during treatment and use a separate treatment tank whenever possible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eCan Fix Doxy be used for pigeons and other pet birds?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Doxy is presented for non-food pet birds, including racing pigeons. The correct amount depends on the bird, its weight, and the method of administration. Follow the label or the instructions of an avian veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I combine Fix Doxy with other fish treatments?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDo not mix Fix Doxy with other treatments unless a qualified veterinarian specifically recommends the combination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat should I do if my fish or bird is not improving on Fix Doxy?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eStop treatment and contact an aquatic or avian veterinarian if symptoms worsen or no improvement is seen within the period stated on the product label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow should I store Fix Doxy tablets?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eStore the bottle tightly closed in a cool, dry location away from direct sunlight, excessive heat, moisture, children, and pets. Follow all storage information printed on the current bottle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow should I dispose of water or filter media that contained Fix Doxy?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFollow the product label and applicable local disposal requirements. Avoid releasing concentrated medication into drains, natural waterways, or outdoor water systems. Contact your local waste or water authority when disposal instructions are unclear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eMore Fish \u0026amp; Bird Treatments\u003c\/h2\u003e\n\u003cdiv class=\"fph-related-grid\"\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Mox (Amoxicillin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, dropsy, ulcers, and other bacterial infections in ornamental fish. Available in 30-count and 100-count capsules.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-mox\"\u003eShop Fix Mox →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zole (Metronidazole) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eTargets anaerobic bacteria and protozoa including Hexamita and hole-in-the-head disease in ornamental fish. Available in 60-count bottles.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zole\"\u003eShop Fix Zole →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zithro (Azithromycin) 250 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, columnaris, gill disease, and avian respiratory concerns. Available in 12-count and 30-count tablets.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zithro\"\u003eShop Fix Zithro →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Cin (Clindamycin) 150 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for Gram-positive bacterial infections, including skin and soft-tissue concerns in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-cin\"\u003eShop Fix Cin →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Sulfa (SMZ\/TMP) 960 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for a range of bacterial infections in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-sulfa\"\u003eShop Fix Sulfa →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Pen (Penicillin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for Gram-positive bacterial infections in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-pen\"\u003eShop Fix Pen →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flex (Cephalexin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, ulcers, and bacterial skin infections in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flex\"\u003eShop Fix Flex →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flox (Ciprofloxacin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for Gram-negative bacterial infections, including fin rot, ulcers, columnaris, and septicemia in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flox\"\u003eShop Fix Flox →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-grid\"\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eBrowse All Treatments\u003c\/h3\u003e\n\u003cp\u003eExplore our complete Fish \u0026amp; Bird Treatments Collection for more Fix line products and related treatments.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/collections\/fish-antibiotics\"\u003eExplore the Collection → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eGuides and Treatment Tips\u003c\/h3\u003e\n\u003cp\u003eVisit the Fish \u0026amp; Bird Treatments Blog for practical care guides, water-care advice, and treatment tips.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/blogs\/fish-antibiotics\"\u003eVisit the Blog →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-image-note\"\u003eTap the product image above to expand and zoom 🔍\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003cdiv class=\"fph-verification\"\u003e\n\u003cdiv class=\"fph-verification-header\"\u003e\n\u003ch2\u003eTransparency \u0026amp; Verification\u003c\/h2\u003e\n\u003cp\u003eHow Product Information Is Verified\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eWho is responsible for this page:\u003c\/strong\u003e The store editorial team responsible for reviewing and maintaining product information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVerification snapshot:\u003c\/strong\u003e This page is written from the current product label for this item and reviewed for accuracy and consistency before publishing.\u003c\/p\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eHow We Verify Product Information\u003c\/h3\u003e\n\u003cdiv class=\"fph-verification-grid\"\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eLabel-First Accuracy\u003c\/h3\u003e\n\u003cp\u003eDirections, duration, storage, and warnings are taken from the current product label for this item.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eSpecification Validation\u003c\/h3\u003e\n\u003cp\u003eKey details such as ingredient names and strengths, where applicable, are cross-checked against the manufacturer’s product specifications to reduce the risk of labeling mistakes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eConsistency Checks\u003c\/h3\u003e\n\u003cp\u003eWe review for internal consistency, including matching directions and storage language across sections, and remove wording that could overpromise results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eUpdates\u003c\/h3\u003e\n\u003cp\u003eWe update pages when label directions, packaging, or manufacturer information changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eWhat we do not do:\u003c\/strong\u003e We do not invent claims, and we do not add usage directions beyond what the product label states for this item’s intended use.\u003c\/div\u003e\n\u003cp style=\"margin-top: 25px;\"\u003eSee something that does not match the product you received? Please \u003cstrong\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003ca href=\"https:\/\/www.calvetsupply.com\/pages\/contact-us\" style=\"color: rgb(255, 128, 0);\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e so we can review and update the page.\u003c\/p\u003e\n\u003cdiv class=\"fph-educational-note\"\u003e\n\u003cstrong\u003eEducational use:\u003c\/strong\u003e Our content is for general informational purposes only and is not a substitute for advice from your veterinarian.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Aqua Soma Labs","offers":[{"title":"100-mg (30 count)","offer_id":45972964343842,"sku":"190067","price":43.99,"currency_code":"USD","in_stock":true},{"title":"100-mg (60 count)","offer_id":45972964376610,"sku":"748712","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/7008\/3874\/files\/Fish_Doxy_ffc3999f-6224-4647-a2c5-88cc784d1410.png?v=1783910110"},{"product_id":"fish-mox","title":"Fish Mox (Fix Mox) Amoxicillin 250mg \u0026 500mg Fish Antibacterial","description":"\u003cstyle\u003e\n  .fph-product-copy {\n    --fph-orange: #e37111;\n    --fph-teal: #148d85;\n    --fph-green: #64ad82;\n    --fph-dark: #09213f;\n    --fph-text: #24374e;\n    --fph-muted: #64748b;\n    --fph-border: #dce3eb;\n    --fph-light: #f5f8fa;\n    --fph-teal-light: #eef8f6;\n    --fph-orange-light: #fff6ed;\n    --fph-white: #ffffff;\n\n    width: 100%;\n    max-width: 1340px;\n    margin: 0 auto;\n    color: var(--fph-text);\n    font-family: inherit;\n    font-size: 17px;\n    line-height: 1.7;\n  }\n\n  .fph-product-copy,\n  .fph-product-copy * {\n    box-sizing: border-box;\n  }\n\n  .fph-product-copy section 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var(--fph-border);\n    border-radius: 20px;\n    background: var(--fph-white);\n  }\n\n  .fph-glance-heading {\n    padding: 20px 24px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n    font-size: 23px;\n    font-weight: 800;\n  }\n\n  .fph-glance-row {\n    display: grid;\n    grid-template-columns: 44% 56%;\n    border-top: 1px solid var(--fph-border);\n  }\n\n  .fph-glance-row:first-of-type {\n    border-top: 0;\n  }\n\n  .fph-glance-label,\n  .fph-glance-value {\n    padding: 15px 18px;\n  }\n\n  .fph-glance-label {\n    background: #f3f5f7;\n    color: var(--fph-dark);\n    font-weight: 750;\n  }\n\n  .fph-glance-value {\n    background: #f9fafb;\n  }\n\n  .fph-two-column {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 22px;\n    margin-top: 28px;\n  }\n\n  .fph-info-box {\n    padding: 26px;\n    border: 1px solid var(--fph-border);\n    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border-radius: 18px;\n    background: linear-gradient(145deg, #eef8f6 0%, #ffffff 100%);\n  }\n\n  .fph-small-label {\n    display: block;\n    margin-bottom: 9px;\n    color: var(--fph-teal);\n    font-size: 12px;\n    font-weight: 800;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n  }\n\n  .fph-comparison-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-comparison-card p {\n    margin: 0;\n    color: var(--fph-muted);\n  }\n\n  .fph-benefits-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 28px;\n  }\n\n  .fph-benefit-card {\n    padding: 28px;\n    border: 1px solid var(--fph-border);\n    border-radius: 19px;\n    background: var(--fph-white);\n    box-shadow: 0 8px 28px rgba(15, 42, 70, 0.06);\n    transition: 0.3s ease;\n  }\n\n  .fph-benefit-card:hover {\n    transform: translateY(-5px);\n    box-shadow: 0 15px 38px rgba(15, 42, 70, 0.11);\n  }\n\n  .fph-benefit-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 45px;\n    height: 45px;\n    margin-bottom: 18px;\n    border-radius: 50%;\n    background: var(--fph-orange);\n    color: var(--fph-white);\n    font-size: 15px;\n    font-weight: 800;\n  }\n\n  .fph-benefit-card:nth-child(2n) .fph-benefit-number {\n    background: var(--fph-teal);\n  }\n\n  .fph-benefit-card:nth-child(3n) .fph-benefit-number {\n    background: var(--fph-green);\n  }\n\n  .fph-benefit-card h3 {\n    margin: 0 0 11px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-benefit-card p {\n    margin: 0;\n    color: var(--fph-muted);\n  }\n\n  .fph-directions-label {\n    margin: 0 0 22px;\n    color: var(--fph-teal);\n    font-size: 21px;\n    font-weight: 800;\n  }\n\n  .fph-steps {\n    display: grid;\n    gap: 18px;\n  }\n\n  .fph-step {\n    display: grid;\n    grid-template-columns: 62px minmax(0, 1fr);\n    gap: 18px;\n    padding: 25px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: #f1f9f7;\n  }\n\n  .fph-step-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 48px;\n    height: 48px;\n    border-radius: 50%;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-size: 19px;\n    font-weight: 800;\n  }\n\n  .fph-step h3 {\n    margin: 2px 0 9px;\n    color: var(--fph-dark);\n    font-size: 22px;\n    line-height: 1.35;\n  }\n\n  .fph-step p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-table-wrapper {\n    margin-top: 30px;\n    overflow-x: auto;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n  }\n\n  .fph-table {\n    width: 100%;\n    min-width: 720px;\n    border-collapse: collapse;\n    background: var(--fph-white);\n  }\n\n  .fph-table th,\n  .fph-table td {\n    padding: 16px 19px;\n    border-bottom: 1px solid var(--fph-border);\n    text-align: left;\n    vertical-align: top;\n  }\n\n  .fph-table th {\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-weight: 750;\n  }\n\n  .fph-table tr:nth-child(even) td {\n    background: #f7f9fa;\n  }\n\n  .fph-table tr:last-child td {\n    border-bottom: 0;\n  }\n\n  .fph-timeline {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 25px;\n  }\n\n  .fph-timeline-card {\n    padding: 25px;\n    border-radius: 18px;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n  }\n\n  .fph-timeline-card:nth-child(2) {\n    background: var(--fph-green);\n  }\n\n  .fph-timeline-card:nth-child(3) {\n    background: var(--fph-orange);\n  }\n\n  .fph-timeline-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-white);\n    font-size: 22px;\n  }\n\n  .fph-timeline-card p {\n    margin: 0;\n    color: var(--fph-white);\n  }\n\n  .fph-pro-tip {\n    margin-top: 22px;\n    padding: 22px 24px;\n    border-radius: 17px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-dark) 0%,\n      var(--fph-teal) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-pro-tip p {\n    margin: 0;\n    color: var(--fph-white);\n  }\n\n  .fph-safety-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 27px;\n  }\n\n  .fph-safety-card {\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n  }\n\n  .fph-safety-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-teal);\n    font-size: 22px;\n  }\n\n  .fph-safety-card p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-warning {\n    margin-top: 22px;\n    padding: 25px;\n    border: 1px solid #efc49c;\n    border-radius: 18px;\n    background: var(--fph-orange-light);\n  }\n\n  .fph-warning h3 {\n    margin: 0 0 10px;\n    color: #a84b06;\n    font-size: 22px;\n  }\n\n  .fph-warning p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-policy-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 26px;\n  }\n\n  .fph-policy-card {\n    padding: 27px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-light);\n  }\n\n  .fph-policy-card h3 {\n    margin: 0 0 11px;\n    color: var(--fph-dark);\n    font-size: 22px;\n  }\n\n  .fph-policy-card a {\n    display: inline-flex;\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-policy-card a:hover {\n    text-decoration: underline;\n  }\n\n  .fph-faq {\n    display: grid;\n    gap: 12px;\n    margin-top: 27px;\n  }\n\n  .fph-faq details {\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 15px;\n    background: var(--fph-white);\n  }\n\n  .fph-faq summary {\n    position: relative;\n    padding: 19px 58px 19px 21px;\n    color: var(--fph-dark);\n    font-weight: 750;\n    cursor: pointer;\n    list-style: none;\n  }\n\n  .fph-faq summary::-webkit-details-marker {\n    display: none;\n  }\n\n  .fph-faq summary::after {\n    content: \"+\";\n    position: absolute;\n    top: 50%;\n    right: 21px;\n    color: var(--fph-teal);\n    font-size: 27px;\n    line-height: 1;\n    transform: translateY(-50%);\n  }\n\n  .fph-faq details[open] summary::after {\n    content: \"−\";\n  }\n\n  .fph-faq details[open] summary {\n    background: var(--fph-teal-light);\n  }\n\n  .fph-faq-answer {\n    padding: 0 21px 20px;\n    color: var(--fph-muted);\n  }\n\n  .fph-faq-answer p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-related-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 27px;\n  }\n\n  .fph-related-card {\n    display: flex;\n    flex-direction: column;\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n    box-shadow: 0 7px 24px rgba(15, 42, 70, 0.05);\n  }\n\n  .fph-related-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-related-card p {\n    flex: 1;\n    color: var(--fph-muted);\n  }\n\n  .fph-related-card a {\n    margin-top: auto;\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-related-card a:hover {\n    text-decoration: underline;\n  }\n\n  .fph-browse-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 20px;\n  }\n\n  .fph-browse-card {\n    padding: 26px;\n    border-radius: 18px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card:nth-child(2) {\n    background: linear-gradient(\n      135deg,\n      var(--fph-orange) 0%,\n      #f09a47 100%\n    );\n  }\n\n  .fph-browse-card h3,\n  .fph-browse-card p,\n  .fph-browse-card a {\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card h3 {\n    margin: 0 0 9px;\n    font-size: 22px;\n  }\n\n  .fph-browse-card a {\n    font-weight: 800;\n  }\n\n  .fph-image-note {\n    margin-top: 40px;\n    padding: 16px 20px;\n    border: 1px dashed var(--fph-border);\n    border-radius: 14px;\n    background: #fafbfc;\n    text-align: center;\n    font-weight: 700;\n  }\n\n  .fph-verification {\n    margin-top: 30px;\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 20px;\n    background: var(--fph-white);\n  }\n\n  .fph-verification-header {\n    padding: 25px;\n    background: var(--fph-dark);\n    color: var(--fph-white);\n  }\n\n  .fph-verification-header h2 {\n    margin: 0 0 7px;\n    color: var(--fph-white);\n    font-size: 29px;\n  }\n\n  .fph-verification-header p {\n    margin: 0;\n    color: rgba(255, 255, 255, 0.88);\n  }\n\n  .fph-verification-body {\n    padding: 27px;\n  }\n\n  .fph-verification-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin: 24px 0;\n  }\n\n  .fph-verification-card {\n    padding: 23px;\n    border: 1px solid #cfe2df;\n    border-radius: 16px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-verification-card h3 {\n    margin: 0 0 9px;\n    color: var(--fph-teal);\n    font-size: 20px;\n  }\n\n  .fph-verification-card p {\n    margin: 0;\n  }\n\n  .fph-contact-link {\n    color: var(--fph-orange);\n    font-weight: 750;\n  }\n\n  .fph-educational-note {\n    margin-top: 24px;\n    padding: 20px 22px;\n    border-radius: 15px;\n    background: #eef3f7;\n    color: #42566d;\n    font-size: 15px;\n  }\n\n  .fph-reviewed {\n    margin-top: 18px;\n    color: var(--fph-muted);\n    font-size: 14px;\n  }\n\n  @media (max-width: 1050px) {\n    .fph-comparison-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n\n    .fph-benefits-grid,\n    .fph-related-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n  }\n\n  @media (max-width: 749px) {\n    .fph-product-copy {\n      font-size: 16px;\n      line-height: 1.65;\n    }\n\n    .fph-product-title {\n      margin-bottom: 22px;\n      font-size: 32px;\n    }\n\n    .fph-section {\n      padding: 39px 0;\n    }\n\n    .fph-section-title {\n      font-size: 28px;\n    }\n\n    .fph-toc {\n      margin-bottom: 30px;\n    }\n\n    .fph-toc-label {\n      display: none;\n    }\n\n    .fph-toc a {\n      min-height: 44px;\n      padding: 9px 17px;\n      font-size: 15px;\n    }\n\n    .fph-glance {\n      margin-bottom: 38px;\n      border-radius: 16px;\n    }\n\n    .fph-glance-heading {\n      padding: 18px;\n      font-size: 21px;\n    }\n\n    .fph-glance-row {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-glance-label {\n      padding-bottom: 7px;\n    }\n\n    .fph-glance-value {\n      padding-top: 7px;\n    }\n\n    .fph-two-column,\n    .fph-comparison-grid,\n    .fph-benefits-grid,\n    .fph-timeline,\n    .fph-safety-grid,\n    .fph-policy-grid,\n    .fph-related-grid,\n    .fph-browse-grid,\n    .fph-verification-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-step {\n      grid-template-columns: 48px minmax(0, 1fr);\n      gap: 14px;\n      padding: 20px;\n    }\n\n    .fph-step-number {\n      width: 43px;\n      height: 43px;\n      font-size: 17px;\n    }\n\n    .fph-step h3 {\n      font-size: 20px;\n    }\n\n    .fph-benefit-card,\n    .fph-related-card,\n    .fph-info-box,\n    .fph-policy-card {\n      padding: 22px;\n    }\n  }\n\n  @media (prefers-reduced-motion: reduce) {\n    .fph-product-copy *,\n    .fph-product-copy *::before,\n    .fph-product-copy *::after {\n      scroll-behavior: auto !important;\n      transition: none !important;\n      animation: none !important;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"fph-product-copy\"\u003e\n\u003csection class=\"fph-section\" id=\"overview\"\u003e\n\u003ch1 class=\"fph-product-title\"\u003eFish Mox (Fix Mox) Amoxicillin Antibacterial Capsules for Ornamental Fish \u0026amp; Pet Birds, 250 mg \/ 500 mg\u003c\/h1\u003e\n\u003cnav class=\"fph-toc\" aria-label=\"On this page\"\u003e\u003cspan class=\"fph-toc-label\"\u003eOn this page:\u003c\/span\u003e \u003ca href=\"#benefits\"\u003eBenefits\u003c\/a\u003e \u003ca href=\"#fish-mox-vs-fix-mox\"\u003eFish Mox vs Fix Mox\u003c\/a\u003e \u003ca href=\"#usage\"\u003eUsage \u0026amp; Instructions\u003c\/a\u003e \u003ca href=\"#how-it-works\"\u003eHow It Works\u003c\/a\u003e \u003ca href=\"#safety\"\u003eSafety \u0026amp; Tank Notes\u003c\/a\u003e \u003ca href=\"#shipping\"\u003eShipping \u0026amp; Returns\u003c\/a\u003e \u003ca href=\"#faq\"\u003eFAQ\u003c\/a\u003e\u003c\/nav\u003e\n\u003cdiv class=\"fph-glance\"\u003e\n\u003cdiv class=\"fph-glance-heading\"\u003eFix Mox at a Glance\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eFor\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eOrnamental aquarium fish and non-food pet birds\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eHelps with\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFin and tail rot, dropsy, columnaris, red streaks, and skin ulcers\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eForm\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eAntibacterial capsules, 250 mg or 500 mg each\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eCount sizes\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003e30 count and 100 count\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eWater type\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFreshwater and saltwater aquariums\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eMade in\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eUnited States by Aqua Soma Labs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"fph-lead\"\u003e\u003cstrong\u003eFish Mox (Fix Mox)\u003c\/strong\u003e is a fish amoxicillin treatment in 250 mg and 500 mg capsules for ornamental aquarium fish and non-food pet birds.\u003c\/p\u003e\n\u003cp\u003eIn freshwater and saltwater tanks it is used for common bacterial problems including dropsy or body swelling, fin and tail rot, columnaris, hemorrhagic septicemia, red streaks, gill disease, swim bladder infections, abscesses, and skin ulcers.\u003c\/p\u003e\n\u003cp\u003eWith an avian veterinarian's guidance, the same capsules can be part of an amoxicillin plan for problems such as crop infections and salmonella or paratyphoid in pigeons and other pet birds.\u003c\/p\u003e\n\u003cp\u003eFix Mox gives you a 250 mg or 500 mg strength, so you can match it to the job: a small hospital tank, a larger community aquarium, or, with veterinary input, a loft or aviary.\u003c\/p\u003e\n\u003cp\u003eIt is the current replacement for the discontinued Thomas Labs Fish Mox, also known as fishmox. The 250 mg option stands in for the original strength, and the 500 mg option covers what aquarists knew as Fish Mox Forte and Aqua Mox.\u003c\/p\u003e\n\u003cp\u003eStock ships from our United States warehouse with fresh expiration dates and clearly printed strengths.\u003c\/p\u003e\n\u003cp\u003eStart treatment early, at the first signs of bacterial stress. Those signs differ between fish and birds, so use the lists below to know what to watch for.\u003c\/p\u003e\n\u003cdiv class=\"fph-two-column\"\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eFish-Specific Symptoms\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFin and tail rot, including frayed or rotting fins\u003c\/li\u003e\n\u003cli\u003eDropsy or body swelling\u003c\/li\u003e\n\u003cli\u003ePop-eye or bulging eyes\u003c\/li\u003e\n\u003cli\u003eRed streaks or open sores on the body\u003c\/li\u003e\n\u003cli\u003eSkin ulcers and abscesses\u003c\/li\u003e\n\u003cli\u003eColumnaris and gill disease\u003c\/li\u003e\n\u003cli\u003eLethargy, rapid breathing, or appetite loss\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eBird-Specific Symptoms Under Veterinary Guidance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCrop infections\u003c\/li\u003e\n\u003cli\u003eSuspected salmonella or paratyphoid\u003c\/li\u003e\n\u003cli\u003eFluffed-up feathers, lethargy, or inactivity\u003c\/li\u003e\n\u003cli\u003eDecreased appetite\u003c\/li\u003e\n\u003cli\u003eLoose or changed droppings\u003c\/li\u003e\n\u003cli\u003eLabored or difficult breathing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 28px;\"\u003eFor birds, only use Fix Mox when an avian veterinarian has recommended amoxicillin for a specific problem. Catching an infection early, paired with clean water and good housing, gives your fish and birds the best chance to recover.\u003c\/p\u003e\n\u003cdiv class=\"fph-order-note\"\u003e\n\u003cp\u003e\u003cstrong\u003eOrder online and enjoy same-day dispatch\u003c\/strong\u003e on orders placed before 1:30 p.m. CT, Monday through Friday. Fix Mox ships directly from our United States warehouse via USPS or UPS.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e This product is intended for aquarium and ornamental fish and pet birds only. It is not for animals used for food.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"fish-mox-vs-fix-mox\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFish Mox vs Fix Mox: What Changed?\u003c\/h2\u003e\n\u003cp\u003eIf you used to buy Fish Mox, Fish Mox Forte, or Aqua Mox, those brands are now discontinued or hard to find. Fix Mox from Aqua Soma Labs uses the same amoxicillin at the same strengths and steps in as a direct replacement for aquarium use.\u003c\/p\u003e\n\u003cdiv class=\"fph-comparison-grid\"\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eActive ingredient\u003c\/span\u003e\n\u003ch3\u003eSame Amoxicillin Inside\u003c\/h3\u003e\n\u003cp\u003eFish Mox and Fix Mox both contain amoxicillin at 250 mg or 500 mg per capsule, the strengths aquarists have relied on for years.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003ePresentation\u003c\/span\u003e\n\u003ch3\u003eUpdated Labeling \u0026amp; Packaging\u003c\/h3\u003e\n\u003cp\u003eFix Mox carries clear, modern labeling, with usage guidance, amoxicillin strength, and storage notes printed on the bottle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eCapsule format\u003c\/span\u003e\n\u003ch3\u003eSame Capsule Form\u003c\/h3\u003e\n\u003cp\u003ePull-apart capsules dissolve in tank water, matching the format aquarists knew from Thomas Labs Fish Mox or Aqua Mox.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eStock quality\u003c\/span\u003e\n\u003ch3\u003eFresh Stock \u0026amp; Current Expiration Dates\u003c\/h3\u003e\n\u003cp\u003eEvery bottle ships with recent production and clearly printed expiration dates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"benefits\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eBenefits of Fix Mox for Fish \u0026amp; Birds\u003c\/h2\u003e\n\u003cdiv class=\"fph-benefits-grid\"\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch3\u003eCovers Common Fish Infections\u003c\/h3\u003e\n\u003cp\u003eAs an aquarium antibacterial treatment, amoxicillin is used against many of the bacteria behind dropsy, fin and tail rot, red streaks, gill disease, swim bladder infections, and skin ulcers in freshwater and saltwater tanks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch3\u003eHandles External and Internal Problems\u003c\/h3\u003e\n\u003cp\u003eUse it for outward signs such as frayed fins, open sores, or red patches, and for internal infections such as hemorrhagic septicemia that bring swelling, lethargy, or appetite loss. Treat affected fish in a hospital tank.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch3\u003eFlexible 250 mg and 500 mg Strengths\u003c\/h3\u003e\n\u003cp\u003eAmoxicillin in a 500 mg or 250 mg capsule lets you scale from a small quarantine tank to a larger system. A common guide is 250 mg per 10 gallons or 500 mg per 20 gallons.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch3\u003eKeep a Bottle on Hand\u003c\/h3\u003e\n\u003cp\u003eBacterial problems move quickly, so keeping Fix Mox stored properly means it is available at the first sign of a bacterial problem in your aquarium.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e05\u003c\/div\u003e\n\u003ch3\u003eEasy to Prepare for Fish and Vet-Directed Birds\u003c\/h3\u003e\n\u003cp\u003eThe capsules pull apart, and the contents dissolve in tank water. Under avian veterinary guidance, the contents may be mixed into soft food or water for birds with specific bacterial problems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e06\u003c\/div\u003e\n\u003ch3\u003eBuilt for Hospital and Quarantine Tanks\u003c\/h3\u003e\n\u003cp\u003eA separate treatment tank lets you remove carbon and UV, maintain stable water quality, and watch sick fish without treating healthy tank mates or sensitive invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e07\u003c\/div\u003e\n\u003ch3\u003eA Modern Swap for Discontinued Brands\u003c\/h3\u003e\n\u003cp\u003eWhen older Thomas Labs Fish Mox or Aqua Mox products are unavailable, Fix Mox provides a modern replacement with clear strength labels and fresh stock.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"usage\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eUsage Guidelines \u0026amp; Instructions\u003c\/h2\u003e\n\u003cdiv class=\"fph-directions-label\"\u003eDirections for Use:\u003c\/div\u003e\n\u003cdiv class=\"fph-steps\"\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e1\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eSet Up a Separate Treatment Area\u003c\/h3\u003e\n\u003cp\u003eMove sick fish to a dedicated hospital or quarantine tank before you dose. Take out activated carbon and switch off UV sterilizers, since both can remove amoxicillin from the water.\u003c\/p\u003e\n\u003cp\u003eA 20% to 25% water change before the first dose lowers stress and starts treatment with cleaner water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e2\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eDirections for Fish Aquariums\u003c\/h3\u003e\n\u003cp\u003eFollow the label guide of 250 mg amoxicillin per 10 gallons or 38 litres, or 500 mg per 20 gallons or 76 litres.\u003c\/p\u003e\n\u003cp\u003eOpen the capsule, stir the powder into a cup of tank water, then pour it evenly around the treatment tank.\u003c\/p\u003e\n\u003cp\u003eRepeat every 24 hours for 5 to 10 days, with a partial water change between doses. If nothing improves after about five days, or fish look worse, stop and ask an aquatic veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e3\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eUse in Pet Birds Under Veterinary Guidance\u003c\/h3\u003e\n\u003cp\u003eUse Fix Mox in pigeons and other non-food pet birds only when an avian veterinarian directs it.\u003c\/p\u003e\n\u003cp\u003eThe veterinarian sets the correct amount for the bird's weight, how often to give it, and how long to continue.\u003c\/p\u003e\n\u003cp\u003eCapsules may be opened into soft food or drinking water so the bird receives the full intended amount, but follow the veterinarian's exact instructions rather than estimating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e4\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eMaintain Water Quality and Finish the Treatment\u003c\/h3\u003e\n\u003cp\u003eDuring treatment, monitor ammonia, nitrite, temperature, and aeration.\u003c\/p\u003e\n\u003cp\u003eFinish the full treatment unless a veterinarian says otherwise. Stopping too early may allow symptoms to return.\u003c\/p\u003e\n\u003cp\u003eAfterward, perform a partial water change and restore activated carbon to help remove remaining amoxicillin.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eFix Mox Amounts by Aquarium Size\u003c\/h3\u003e\n\u003cdiv class=\"fph-table-wrapper\"\u003e\n\u003ctable class=\"fph-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTank volume\u003c\/th\u003e\n\u003cth\u003eAmoxicillin per use\u003c\/th\u003e\n\u003cth\u003e250 mg capsules\u003c\/th\u003e\n\u003cth\u003e500 mg capsules\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 gallons (38 L)\u003c\/td\u003e\n\u003ctd\u003e250 mg\u003c\/td\u003e\n\u003ctd\u003e1 capsule\u003c\/td\u003e\n\u003ctd\u003eNot applicable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 gallons (76 L)\u003c\/td\u003e\n\u003ctd\u003e500 mg\u003c\/td\u003e\n\u003ctd\u003e2 capsules\u003c\/td\u003e\n\u003ctd\u003e1 capsule\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30 gallons (114 L)\u003c\/td\u003e\n\u003ctd\u003e750 mg\u003c\/td\u003e\n\u003ctd\u003e3 capsules\u003c\/td\u003e\n\u003ctd\u003e1 capsule plus one 250 mg capsule\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40 gallons (151 L)\u003c\/td\u003e\n\u003ctd\u003e1,000 mg\u003c\/td\u003e\n\u003ctd\u003e4 capsules\u003c\/td\u003e\n\u003ctd\u003e2 capsules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e55 gallons (208 L)\u003c\/td\u003e\n\u003ctd\u003eApproximately 1,375 mg\u003c\/td\u003e\n\u003ctd\u003e5 to 6 capsules\u003c\/td\u003e\n\u003ctd\u003eApproximately 3 capsules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eThese figures come from the label-style guideline of 250 mg per 10 gallons, approximately 25 mg per gallon. Dose according to the actual water volume of the treatment tank, not the number of fish. The bottle label or instructions from an aquatic veterinarian take priority over this quick-reference chart.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat to Expect During Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-timeline\"\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 1 to 2\u003c\/h3\u003e\n\u003cp\u003eFish may hide or eat less, and the water may appear slightly cloudy. Keep dosing on schedule and maintain strong aeration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 3 to 5\u003c\/h3\u003e\n\u003cp\u003eLook for sores or red patches that stop spreading, returning appetite, and steadier breathing. If there is no change by day five, or fish look worse, seek aquatic veterinary advice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 5 to 10\u003c\/h3\u003e\n\u003cp\u003eEven when fish improve, complete the recommended treatment. After treatment, perform a partial water change and restore activated carbon.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat You Need for Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003cp\u003eA little preparation before the first dose saves trouble later.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA separate hospital or quarantine tank so the full display aquarium is not treated\u003c\/li\u003e\n\u003cli\u003eA heater and air stone or sponge filter for stable temperature and strong aeration\u003c\/li\u003e\n\u003cli\u003eAn ammonia and nitrite test kit for monitoring water quality\u003c\/li\u003e\n\u003cli\u003eA dechlorinator for water changes between doses\u003c\/li\u003e\n\u003cli\u003eA small net and clean cup for transferring fish and preparing each dose\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-pro-tip\"\u003e\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Treat sick fish in a separate hospital tank rather than the main display whenever possible. This protects the main biological filter and sensitive invertebrates while concentrating the treatment where it is needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"how-it-works\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eHow Fix Mox Works\u003c\/h2\u003e\n\u003cp class=\"fph-lead\"\u003eEach Fix Mox capsule contains amoxicillin trihydrate at a strength of 250 mg or 500 mg.\u003c\/p\u003e\n\u003cp\u003eAmoxicillin is an antibacterial used against many Gram-positive and some Gram-negative bacteria, including bacteria associated with fin and tail rot, skin ulcers, red streaks, and certain gill infections in ornamental fish.\u003c\/p\u003e\n\u003cp\u003eAlongside the amoxicillin, each capsule contains standard ingredients that hold the capsule contents together and help them disperse properly in aquarium water or, for birds under veterinary guidance, in soft food.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"safety\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eSafety and Tank Notes\u003c\/h2\u003e\n\u003cp\u003eWhen used at the correct amount, Fix Mox usually causes no problems for ornamental fish or pet birds. The risk of side effects increases with excessive amounts, unnecessarily prolonged treatment, or use in an already severely stressed animal.\u003c\/p\u003e\n\u003cp\u003eUnnecessary or repeated use can also contribute to antibacterial resistance.\u003c\/p\u003e\n\u003cdiv class=\"fph-safety-grid\"\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eFish\u003c\/h3\u003e\n\u003cp\u003eAmoxicillin may cause temporary hiding, mild water cloudiness, or reduced appetite during treatment.\u003c\/p\u003e\n\u003cp\u003eIf a fish shows rapid gill movement, loss of balance, surface gasping, or remains on the bottom, stop treatment, improve aeration, add clean dechlorinated water, and contact an aquatic veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eBirds\u003c\/h3\u003e\n\u003cp\u003eWhen mixed into food or drinking water, amoxicillin may cause reduced appetite, loose or changed droppings, or lethargy, especially if the amount is too high or the bird is sensitive.\u003c\/p\u003e\n\u003cp\u003eA fluffed-up or inactive bird, or one that has difficulty breathing or stops eating, should stop treatment and receive avian veterinary attention.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eInvertebrates\u003c\/h3\u003e\n\u003cp\u003eDo not use Fix Mox in display tanks containing shrimp, snails, or other sensitive invertebrates.\u003c\/p\u003e\n\u003cp\u003eMove affected fish to a separate hospital or quarantine tank whenever possible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eSafe Use in Your System\u003c\/h3\u003e\n\u003cp\u003eRemove activated carbon and switch off UV sterilization during treatment. Monitor ammonia, nitrite, temperature, and oxygen levels.\u003c\/p\u003e\n\u003cp\u003eDo not combine Fix Mox with other treatments unless a veterinarian specifically advises it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-warning\"\u003e\n\u003ch3\u003eImportant Safety \u0026amp; Storage Information\u003c\/h3\u003e\n\u003cp\u003eFix Mox is for aquarium and ornamental fish and non-food pet birds only. It is not for animals raised for food.\u003c\/p\u003e\n\u003cp\u003eIf you are sensitive to penicillins, avoid direct contact with the capsule contents. Wash your hands after handling and wear suitable gloves when needed.\u003c\/p\u003e\n\u003cp\u003eStore the capsules in their original container in a cool, dry location at 59–86°F or 15–30°C. Protect them from moisture and direct sunlight, keep the lid closed, and store out of reach of children and animals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"shipping\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cdiv class=\"fph-policy-grid\"\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eShipping Policy\u003c\/h3\u003e\n\u003cp\u003eOrders ship from our United States warehouse within one business day through USPS or UPS. Rates and estimated delivery times are calculated at checkout.\u003c\/p\u003e\n\u003cp\u003eFor complete shipping details, review our shipping policy.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/shipping-policy\"\u003eReview Shipping Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eRefund Policy\u003c\/h3\u003e\n\u003cp\u003eIf there is an issue with your order, eligible products may be returned or exchanged within 30 days according to our store guidelines.\u003c\/p\u003e\n\u003cp\u003eReview the complete refund policy before sending a product back.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/refund-policy\"\u003eReview Refund Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"faq\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"fph-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is Fix Mox used for in fish and birds?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Mox contains amoxicillin and is intended for certain bacterial problems in ornamental fish. These may include fin and tail rot, dropsy, red streaks, ulcers, abscesses, columnaris, septicemia, and certain gill infections.\u003c\/p\u003e\n\u003cp\u003eFor non-food pet birds, use should only occur under the guidance of an avian veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Mox the same as Fish Mox or Aqua Mox?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Mox is presented as the current Aqua Soma Labs replacement for discontinued Fish Mox, Fish Mox Forte, and Aqua Mox products. It is available in the familiar 250 mg and 500 mg amoxicillin capsule strengths.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Mox, also called fish mox, the same as amoxicillin?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe active ingredient in Fix Mox is amoxicillin trihydrate. Each capsule is clearly labeled as containing either 250 mg or 500 mg.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Mox the same as fish amoxicillin 500 mg?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe 500 mg Fix Mox option contains 500 mg of amoxicillin per capsule. A separate 250 mg strength is also available.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhere can I buy Fish Mox amoxicillin online?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Mox capsules can be ordered through this online store and shipped from our United States warehouse according to the current shipping terms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Mox be used for dogs or cats?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eNo. This product is labeled for ornamental aquarium fish and non-food pet birds. It is not intended for dogs, cats, humans, or food-producing animals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between Fish Mox and Fish Mox Forte?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe traditional Fish Mox product used the 250 mg strength, while Fish Mox Forte referred to the stronger 500 mg capsule. Fix Mox is available in both 250 mg and 500 mg strengths.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I know if my fish might need a fish amoxicillin treatment?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003ePossible bacterial signs include frayed or rotting fins, swelling, red streaks, sores, ulcers, bulging eyes, abnormal breathing, lethargy, or appetite loss.\u003c\/p\u003e\n\u003cp\u003eSimilar signs can also result from poor water quality, parasites, fungal problems, or other conditions, so professional assessment is recommended when the cause is uncertain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use Fix Mox in my main community or reef tank?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eA separate hospital or quarantine tank is preferred. This reduces exposure of healthy tank mates and sensitive invertebrates and helps protect the main aquarium's biological filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow much Fix Mox should I use per gallon?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied label-style reference is 250 mg per 10 gallons, which is approximately 25 mg per gallon. Follow the current bottle label rather than relying only on a general calculation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long should I treat with Fix Mox?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied instructions describe treatment every 24 hours for approximately 5 to 10 days, with partial water changes between doses. Always follow the current product label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes Fix Mox work in saltwater aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Mox is presented for ornamental fish in freshwater and saltwater treatment systems. A separate hospital tank is recommended, especially for marine aquariums containing invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Mox safe for pet birds, and can I treat more than one bird?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eUse in non-food pet birds should only occur under avian veterinary guidance. The correct amount depends on the species, body weight, condition, administration method, and number of birds being treated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill Fix Mox affect beneficial bacteria in my aquarium?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAntibacterial treatments may interfere with beneficial biological filtration. Use a separate treatment tank and monitor ammonia and nitrite closely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Mox treat fungal, viral, or parasitic infections?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Mox contains an antibacterial ingredient. It should not be assumed to treat fungal, viral, or parasitic conditions unless a qualified professional has identified an appropriate reason for its use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I combine Fix Mox with other treatments?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDo not combine Fix Mox with other aquarium or bird treatments unless a veterinarian specifically recommends the combination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the active ingredient in Fish Mox?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe active ingredient is amoxicillin trihydrate, supplied as either 250 mg or 500 mg per capsule.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow should I store Fix Mox capsules?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eKeep the capsules in their original, tightly closed container at 59–86°F or 15–30°C. Protect the bottle from moisture, excessive heat, and direct sunlight, and keep it away from children and animals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat should I do if my fish are not improving on Fix Mox?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eStop treatment and seek aquatic veterinary advice if the fish become worse or show no improvement after the period specified on the product label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is fish mox?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFish Mox is a commonly used name for amoxicillin capsules labeled for ornamental aquarium fish. Fix Mox is the current Aqua Soma Labs product offered in 250 mg and 500 mg capsule strengths.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eMore Fish \u0026amp; Bird Treatments\u003c\/h2\u003e\n\u003cdiv class=\"fph-related-grid\"\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zole (Metronidazole) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for Hexamita, hole-in-the-head disease, and other protozoa-related problems in ornamental fish. Available in 60-count bottles.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zole\"\u003eShop Fix Zole →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Doxy (Doxycycline) 100 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for columnaris, respiratory infections, and Mycoplasma concerns in ornamental fish and non-food pet birds. Available in 30-count and 60-count tablets.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-doxy\"\u003eShop Fix Doxy →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zithro (Azithromycin) 250 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, columnaris, gill disease, and avian respiratory concerns. Available in 12-count and 30-count tablets.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zithro\"\u003eShop Fix Zithro →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Cin (Clindamycin) 150 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for Gram-positive bacterial problems, including skin and soft-tissue concerns, in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-cin\"\u003eShop Fix Cin →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Sulfa (SMZ\/TMP) 960 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment used against a range of bacterial infections in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-sulfa\"\u003eShop Fix Sulfa →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Pen (Penicillin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for Gram-positive bacterial problems in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-pen\"\u003eShop Fix Pen →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flex (Cephalexin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, ulcers, and bacterial skin infections in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flex\"\u003eShop Fix Flex →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flox (Ciprofloxacin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for Gram-negative bacterial problems, including fin rot, ulcers, columnaris, and septicemia, in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flox\"\u003eShop Fix Flox →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-grid\"\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eBrowse All Treatments\u003c\/h3\u003e\n\u003cp\u003eExplore our complete Fish \u0026amp; Bird Antibacterials Collection for more Fix line products and related treatments.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/collections\/fish-antibiotics\"\u003eExplore the Collection →\u003c\/a\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eGuides and Treatment Tips\u003c\/h3\u003e\n\u003cp\u003eVisit the Fish \u0026amp; Bird Treatments Blog for practical usage guides, water-care advice, and treatment tips.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/blogs\/fish-antibiotics\"\u003eVisit the Blog →\u003c\/a\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-image-note\"\u003eTap the product image above to expand and zoom 🔍\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003cdiv class=\"fph-verification\"\u003e\n\u003cdiv class=\"fph-verification-header\"\u003e\n\u003ch2\u003eTransparency \u0026amp; Verification\u003c\/h2\u003e\n\u003cp\u003eHow Product Information Is Verified\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eWho is responsible for this page:\u003c\/strong\u003e The store editorial team responsible for reviewing and maintaining product information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVerification snapshot:\u003c\/strong\u003e This page is written from the current product label for this item and reviewed for accuracy and consistency before publishing.\u003c\/p\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eHow We Verify Product Information\u003c\/h3\u003e\n\u003cdiv class=\"fph-verification-grid\"\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eLabel-First Accuracy\u003c\/h3\u003e\n\u003cp\u003eDirections, duration, storage, and warnings are taken from the current product label for this item.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eSpecification Validation\u003c\/h3\u003e\n\u003cp\u003eKey details such as ingredient names and strengths are cross-checked against manufacturer specifications to reduce the risk of labeling mistakes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eConsistency Checks\u003c\/h3\u003e\n\u003cp\u003eWe review the page for internal consistency and remove wording that could overpromise results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eUpdates\u003c\/h3\u003e\n\u003cp\u003ePages are updated when label directions, packaging, strengths, or manufacturer information changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eWhat we do not do:\u003c\/strong\u003e We do not invent claims, and we do not add usage directions beyond what the product label states for its intended use.\u003c\/div\u003e\n\u003cp style=\"margin-top: 25px;\"\u003eSee something that does not match the product you received? Please \u003cstrong\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003ca href=\"https:\/\/www.calvetsupply.com\/pages\/contact-us\" style=\"color: rgb(255, 128, 0);\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e so we can review and update the page.\u003c\/p\u003e\n\u003cdiv class=\"fph-educational-note\"\u003e\n\u003cstrong\u003eEducational use:\u003c\/strong\u003e Our content is for general informational purposes only and is not a substitute for advice from a veterinarian.\u003c\/div\u003e\n\u003cdiv class=\"fph-reviewed\"\u003eLast reviewed: July 10, 2026\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Aqua Soma Labs","offers":[{"title":"250-mg (30 count)","offer_id":45972964540450,"sku":"456077","price":24.99,"currency_code":"USD","in_stock":true},{"title":"250-mg (100 count)","offer_id":45972964573218,"sku":"239132","price":39.99,"currency_code":"USD","in_stock":true},{"title":"500-mg (30 count)","offer_id":45972964605986,"sku":"208769","price":35.99,"currency_code":"USD","in_stock":true},{"title":"500-mg (100 count)","offer_id":45972964638754,"sku":"658530","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/7008\/3874\/files\/Fish_Mox_03ef4c74-bf83-4c55-872e-448b362d4e58.png?v=1783910173"},{"product_id":"fish-zole","title":"Fish Zole (Fix Zole) Metronidazole 250mg \u0026 500mg Fish Antibacterial","description":"\u003cstyle\u003e\n  .fph-product-copy {\n    --fph-orange: #e37111;\n    --fph-teal: #148d85;\n    --fph-green: #64ad82;\n    --fph-dark: #09213f;\n    --fph-text: #24374e;\n    --fph-muted: #64748b;\n    --fph-border: #dce3eb;\n    --fph-light: #f5f8fa;\n    --fph-teal-light: #eef8f6;\n    --fph-orange-light: #fff6ed;\n    --fph-white: #ffffff;\n\n    width: 100%;\n    max-width: 1675px;\n    margin: 0 auto;\n    padding-left: 40px;\n    padding-right: 40px;\n    color: var(--fph-text);\n    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background: var(--fph-teal);\n    color: var(--fph-white);\n    transform: translateY(-2px);\n  }\n\n  .fph-glance {\n    margin: 0 0 55px;\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 20px;\n    background: var(--fph-white);\n  }\n\n  .fph-glance-heading {\n    padding: 20px 24px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n    font-size: 23px;\n    font-weight: 800;\n  }\n\n  .fph-glance-row {\n    display: grid;\n    grid-template-columns: 40% 60%;\n    border-top: 1px solid var(--fph-border);\n  }\n\n  .fph-glance-label,\n  .fph-glance-value {\n    padding: 16px 19px;\n  }\n\n  .fph-glance-label {\n    background: #f3f5f7;\n    color: var(--fph-dark);\n    font-weight: 750;\n  }\n\n  .fph-glance-value {\n    background: #f9fafb;\n  }\n\n  .fph-two-column {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 22px;\n    margin-top: 28px;\n  }\n\n  .fph-info-box {\n    padding: 26px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-light);\n  }\n\n  .fph-info-box h3 {\n    margin: 0 0 14px;\n    color: var(--fph-dark);\n    font-size: 22px;\n    font-weight: 750;\n  }\n\n  .fph-info-box ul {\n    margin: 0;\n    padding-left: 21px;\n  }\n\n  .fph-info-box li {\n    margin: 8px 0;\n  }\n\n  .fph-highlight-note {\n    margin: 26px 0 0;\n    padding: 21px 23px;\n    border-left: 5px solid var(--fph-orange);\n    border-radius: 0 15px 15px 0;\n    background: var(--fph-orange-light);\n    color: #63310c;\n  }\n\n  .fph-order-note {\n    margin-top: 25px;\n    padding: 24px;\n    border: 1px solid #cde4de;\n    border-radius: 17px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-order-note p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-comparison-grid {\n    display: grid;\n    grid-template-columns: repeat(4, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 28px;\n  }\n\n  .fph-comparison-card {\n    padding: 25px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: linear-gradient(145deg, #eef8f6 0%, #ffffff 100%);\n  }\n\n  .fph-small-label {\n    display: block;\n    margin-bottom: 9px;\n    color: var(--fph-teal);\n    font-size: 12px;\n    font-weight: 800;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n  }\n\n  .fph-comparison-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-comparison-card p {\n    margin: 0;\n    color: var(--fph-muted);\n  }\n\n  .fph-benefits-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 28px;\n  }\n\n  .fph-benefit-card {\n    padding: 28px;\n    border: 1px solid var(--fph-border);\n    border-radius: 19px;\n    background: var(--fph-white);\n    box-shadow: 0 8px 28px rgba(15, 42, 70, 0.06);\n    transition: 0.3s ease;\n  }\n\n  .fph-benefit-card:hover {\n    transform: translateY(-5px);\n    box-shadow: 0 15px 38px rgba(15, 42, 70, 0.11);\n  }\n\n  .fph-benefit-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 45px;\n    height: 45px;\n    margin-bottom: 18px;\n    border-radius: 50%;\n    background: var(--fph-orange);\n    color: var(--fph-white);\n    font-size: 15px;\n    font-weight: 800;\n  }\n\n  .fph-benefit-card:nth-child(2n) .fph-benefit-number {\n    background: var(--fph-teal);\n  }\n\n  .fph-benefit-card:nth-child(3n) .fph-benefit-number {\n    background: var(--fph-green);\n  }\n\n  .fph-benefit-card h3 {\n    margin: 0 0 11px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-benefit-card p {\n    margin: 0;\n    color: var(--fph-muted);\n  }\n\n  .fph-directions-label {\n    margin: 0 0 22px;\n    color: var(--fph-teal);\n    font-size: 21px;\n    font-weight: 800;\n  }\n\n  .fph-steps {\n    display: grid;\n    gap: 18px;\n  }\n\n  .fph-step {\n    display: grid;\n    grid-template-columns: 62px minmax(0, 1fr);\n    gap: 18px;\n    padding: 25px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: #f1f9f7;\n  }\n\n  .fph-step-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 48px;\n    height: 48px;\n    border-radius: 50%;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-size: 19px;\n    font-weight: 800;\n  }\n\n  .fph-step h3 {\n    margin: 2px 0 9px;\n    color: var(--fph-dark);\n    font-size: 22px;\n    line-height: 1.35;\n  }\n\n  .fph-step p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-table-wrapper {\n    margin-top: 30px;\n    overflow-x: auto;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n  }\n\n  .fph-table {\n    width: 100%;\n    min-width: 720px;\n    border-collapse: collapse;\n    background: var(--fph-white);\n  }\n\n  .fph-table th,\n  .fph-table td {\n    padding: 16px 19px;\n    border-bottom: 1px solid var(--fph-border);\n    text-align: left;\n    vertical-align: top;\n  }\n\n  .fph-table th {\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-weight: 750;\n  }\n\n  .fph-table tr:nth-child(even) td {\n    background: #f7f9fa;\n  }\n\n  .fph-table tr:last-child td {\n    border-bottom: 0;\n  }\n\n  .fph-timeline {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 25px;\n  }\n\n  .fph-timeline-card {\n    padding: 25px;\n    border-radius: 18px;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n  }\n\n  .fph-timeline-card:nth-child(2) {\n    background: var(--fph-green);\n  }\n\n  .fph-timeline-card:nth-child(3) {\n    background: var(--fph-orange);\n  }\n\n  .fph-timeline-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-white);\n    font-size: 22px;\n  }\n\n  .fph-timeline-card p {\n    margin: 0;\n    color: var(--fph-white);\n  }\n\n  .fph-pro-tip {\n    margin-top: 22px;\n    padding: 22px 24px;\n    border-radius: 17px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-dark) 0%,\n      var(--fph-teal) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-pro-tip p {\n    margin: 0;\n    color: var(--fph-white);\n  }\n\n  .fph-safety-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 27px;\n  }\n\n  .fph-safety-card {\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n  }\n\n  .fph-safety-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-teal);\n    font-size: 22px;\n  }\n\n  .fph-safety-card p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-warning {\n    margin-top: 22px;\n    padding: 25px;\n    border: 1px solid #efc49c;\n    border-radius: 18px;\n    background: var(--fph-orange-light);\n  }\n\n  .fph-warning h3 {\n    margin: 0 0 10px;\n    color: #a84b06;\n    font-size: 22px;\n  }\n\n  .fph-warning p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-policy-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 26px;\n  }\n\n  .fph-policy-card {\n    padding: 27px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-light);\n  }\n\n  .fph-policy-card h3 {\n    margin: 0 0 11px;\n    color: var(--fph-dark);\n    font-size: 22px;\n  }\n\n  .fph-policy-card a {\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-policy-card a:hover {\n    text-decoration: underline;\n  }\n\n  .fph-faq {\n    display: grid;\n    gap: 12px;\n    margin-top: 27px;\n  }\n\n  .fph-faq details {\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 15px;\n    background: var(--fph-white);\n  }\n\n  .fph-faq summary {\n    position: relative;\n    padding: 19px 58px 19px 21px;\n    color: var(--fph-dark);\n    font-weight: 750;\n    cursor: pointer;\n    list-style: none;\n  }\n\n  .fph-faq summary::-webkit-details-marker {\n    display: none;\n  }\n\n  .fph-faq summary::after {\n    content: \"+\";\n    position: absolute;\n    top: 50%;\n    right: 21px;\n    color: var(--fph-teal);\n    font-size: 27px;\n    line-height: 1;\n    transform: translateY(-50%);\n  }\n\n  .fph-faq details[open] summary::after {\n    content: \"−\";\n  }\n\n  .fph-faq details[open] summary {\n    background: var(--fph-teal-light);\n  }\n\n  .fph-faq-answer {\n    padding: 0 21px 20px;\n    color: var(--fph-muted);\n  }\n\n  .fph-faq-answer p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-related-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 27px;\n  }\n\n  .fph-related-card {\n    display: flex;\n    flex-direction: column;\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n    box-shadow: 0 7px 24px rgba(15, 42, 70, 0.05);\n  }\n\n  .fph-related-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-related-card p {\n    flex: 1;\n    color: var(--fph-muted);\n  }\n\n  .fph-related-card a {\n    margin-top: auto;\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-related-card a:hover {\n    text-decoration: underline;\n  }\n\n  .fph-browse-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 20px;\n  }\n\n  .fph-browse-card {\n    padding: 26px;\n    border-radius: 18px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card:nth-child(2) {\n    background: linear-gradient(\n      135deg,\n      var(--fph-orange) 0%,\n      #f09a47 100%\n    );\n  }\n\n  .fph-browse-card h3,\n  .fph-browse-card p,\n  .fph-browse-card a {\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card h3 {\n    margin: 0 0 9px;\n    font-size: 22px;\n  }\n\n  .fph-browse-card a {\n    font-weight: 800;\n  }\n\n  .fph-image-note {\n    margin-top: 40px;\n    padding: 16px 20px;\n    border: 1px dashed var(--fph-border);\n    border-radius: 14px;\n    background: #fafbfc;\n    text-align: center;\n    font-weight: 700;\n  }\n\n  .fph-verification {\n    margin-top: 30px;\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 20px;\n    background: var(--fph-white);\n  }\n\n  .fph-verification-header {\n    padding: 25px;\n    background: var(--fph-dark);\n    color: var(--fph-white);\n  }\n\n  .fph-verification-header h2 {\n    margin: 0 0 7px;\n    color: var(--fph-white);\n    font-size: 29px;\n  }\n\n  .fph-verification-header p {\n    margin: 0;\n    color: rgba(255,255,255,.88);\n  }\n\n  .fph-verification-body {\n    padding: 27px;\n  }\n\n  .fph-verification-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin: 24px 0;\n  }\n\n  .fph-verification-card {\n    padding: 23px;\n    border: 1px solid #cfe2df;\n    border-radius: 16px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-verification-card h3 {\n    margin: 0 0 9px;\n    color: var(--fph-teal);\n    font-size: 20px;\n  }\n\n  .fph-verification-card p {\n    margin: 0;\n  }\n\n  .fph-contact-link {\n    color: var(--fph-orange);\n    font-weight: 750;\n  }\n\n  .fph-educational-note {\n    margin-top: 24px;\n    padding: 20px 22px;\n    border-radius: 15px;\n    background: #eef3f7;\n    color: #42566d;\n    font-size: 15px;\n  }\n\n  .fph-reviewed {\n    margin-top: 18px;\n    color: var(--fph-muted);\n    font-size: 14px;\n  }\n\n  @media (max-width: 1050px) {\n    .fph-comparison-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n\n    .fph-benefits-grid,\n    .fph-related-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n  }\n\n  @media (max-width: 749px) {\n    .fph-product-copy {\n      padding-left: 18px;\n      padding-right: 18px;\n      font-size: 16px;\n      line-height: 1.65;\n    }\n\n    .fph-product-title {\n      font-size: 32px;\n    }\n\n    .fph-section {\n      padding: 39px 0;\n    }\n\n    .fph-section-title {\n      font-size: 28px;\n    }\n\n    .fph-toc-label {\n      display: none;\n    }\n\n    .fph-toc a {\n      min-height: 44px;\n      padding: 9px 17px;\n      font-size: 15px;\n    }\n\n    .fph-glance-row {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-glance-label {\n      padding-bottom: 7px;\n    }\n\n    .fph-glance-value {\n      padding-top: 7px;\n    }\n\n    .fph-two-column,\n    .fph-comparison-grid,\n    .fph-benefits-grid,\n    .fph-timeline,\n    .fph-safety-grid,\n    .fph-policy-grid,\n    .fph-related-grid,\n    .fph-browse-grid,\n    .fph-verification-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-step {\n      grid-template-columns: 48px minmax(0, 1fr);\n      gap: 14px;\n      padding: 20px;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"fph-product-copy\"\u003e\n\u003csection class=\"fph-section\" id=\"overview\"\u003e\n\u003ch1 class=\"fph-product-title\"\u003eFish Zole (Fix Zole) Metronidazole Tablets, Fish \u0026amp; Bird Antibacterial 250 mg \/ 500 mg\u003c\/h1\u003e\n\u003cnav class=\"fph-toc\" aria-label=\"On this page\"\u003e\u003cspan class=\"fph-toc-label\"\u003eOn this page:\u003c\/span\u003e \u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e \u003ca href=\"#fish-zole-vs-fix-zole\"\u003eFish Zole vs Fix Zole\u003c\/a\u003e \u003ca href=\"#benefits\"\u003eBenefits\u003c\/a\u003e \u003ca href=\"#usage\"\u003eUsage \u0026amp; Instructions\u003c\/a\u003e \u003ca href=\"#how-it-works\"\u003eHow It Works\u003c\/a\u003e \u003ca href=\"#safety\"\u003eSafety\u003c\/a\u003e \u003ca href=\"#shipping\"\u003eShipping \u0026amp; Returns\u003c\/a\u003e \u003ca href=\"#faq\"\u003eFAQ\u003c\/a\u003e\u003c\/nav\u003e\n\u003cdiv class=\"fph-glance\"\u003e\n\u003cdiv class=\"fph-glance-heading\"\u003eFix Zole at a Glance\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eFor\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eOrnamental aquarium fish \u0026amp; non-food pet birds\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eHelps with\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eInternal parasites and protozoan flagellates such as Hexamita and Spironucleus\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eForm\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eTablets, 250 mg or 500 mg each\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eCount sizes\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003e60-count bottles\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eWater type\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFreshwater or saltwater treatment tanks\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eMade in\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eUnited States by Aqua Soma Labs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"fph-lead\"\u003e\u003cstrong\u003eFish Zole (Fix Zole)\u003c\/strong\u003e is a metronidazole antibacterial treatment in tablet form for ornamental aquarium fish and non-food pet birds.\u003c\/p\u003e\n\u003cp\u003eEach tablet supplies 250 mg or 500 mg of metronidazole and is made in the United States by Aqua Soma Labs. Hobbyists commonly use it to help manage suspected protozoan problems in a hospital or quarantine tank, where dosing and observation are easier to control.\u003c\/p\u003e\n\u003cp\u003eAquarists have known this metronidazole tablet under earlier names, including the discontinued Thomas Labs Fish Zole and Fish Zole Forte, Aqua-Zole, fishzole, and fishbiotic metronidazole.\u003c\/p\u003e\n\u003cp\u003eFix Zole is the current Aqua Soma Labs version, replacing those older products with the same metronidazole strengths of 250 mg or 500 mg per tablet. Keepers who previously used MetroPlex may find this a convenient tablet-based option.\u003c\/p\u003e\n\u003cp\u003eHobbyists use Fix Zole to help manage internal parasites and intestinal protozoan flagellates such as Hexamita and Spironucleus.\u003c\/p\u003e\n\u003cp\u003eThese problems can appear through feeding changes, unusual droppings, weight loss, behavioral changes, or visible physical signs in certain freshwater fish.\u003c\/p\u003e\n\u003cp\u003eMetronidazole works against certain protozoa and anaerobic organisms. When used as directed, it can form part of a broader care plan that includes stable water quality, reduced stress, and appropriate nutrition.\u003c\/p\u003e\n\u003cp\u003eIt is not intended for ich or flukes, and it is not normally the first choice for typical fin rot unless the underlying cause has been confirmed by an aquatic professional.\u003c\/p\u003e\n\u003cp\u003eFix Zole from Aqua Soma Labs delivers 250 mg or 500 mg of metronidazole per tablet in 60-count bottles with fresh expiration dates.\u003c\/p\u003e\n\u003cp\u003eChoose the tablet strength that matches your treatment-tank volume and treatment plan. Tablets may be pre-dissolved in a small cup of aquarium water before being added evenly to the treatment tank.\u003c\/p\u003e\n\u003cp\u003eUse Fix Zole when fish or pet birds show signs that may be associated with protozoan flagellates or anaerobic-sensitive problems.\u003c\/p\u003e\n\u003cdiv class=\"fph-two-column\"\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eFish-Specific Symptoms\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLoss of appetite or gradual weight loss\u003c\/li\u003e\n\u003cli\u003eWhite, stringy droppings\u003c\/li\u003e\n\u003cli\u003eHole-in-the-head lesions or pits along the head and lateral line\u003c\/li\u003e\n\u003cli\u003eMalawi bloat or cichlid bloat\u003c\/li\u003e\n\u003cli\u003eSwollen abdomen\u003c\/li\u003e\n\u003cli\u003eFaded color, darkening, or body discoloration\u003c\/li\u003e\n\u003cli\u003eLethargy, hiding, or reduced activity\u003c\/li\u003e\n\u003cli\u003eSudden decline in cichlids or discus associated with Hexamita or Spironucleus\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eBird-Specific Symptoms Under Avian Veterinary Guidance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eYellow plaques in the throat or crop\u003c\/li\u003e\n\u003cli\u003eCanker or trichomonosis\u003c\/li\u003e\n\u003cli\u003ePigeon canker, especially in racing pigeons\u003c\/li\u003e\n\u003cli\u003eFrounce in falcons, hawks, owls, and other raptors\u003c\/li\u003e\n\u003cli\u003eLoose or watery droppings possibly associated with giardia\u003c\/li\u003e\n\u003cli\u003eReduced appetite or weight loss\u003c\/li\u003e\n\u003cli\u003eDifficulty swallowing or visible discomfort while eating\u003c\/li\u003e\n\u003cli\u003eFluffed-up feathers or lethargy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 28px;\"\u003eSupporting treatment with clean water, stable temperature, low stress, and appropriate husbandry helps reduce setbacks and improve outcomes.\u003c\/p\u003e\n\u003cp\u003eFor pet birds, always confirm the diagnosis with an avian veterinarian before administering metronidazole.\u003c\/p\u003e\n\u003cdiv class=\"fph-order-note\"\u003e\n\u003cp\u003e\u003cstrong\u003eOrder online:\u003c\/strong\u003e Fix Zole ships from our United States warehouse the same business day according to the current order-processing schedule.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e This product is intended for aquarium and ornamental fish and non-food pet birds only. It is not for animals used for food.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"fish-zole-vs-fix-zole\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFish Zole vs Fix Zole: What Changed?\u003c\/h2\u003e\n\u003cp\u003eIf you previously used Thomas Labs Fish Zole, Fish Zole Forte, or Aqua-Zole by Aqua Soma Labs, here is what you need to know about Fix Zole.\u003c\/p\u003e\n\u003cdiv class=\"fph-comparison-grid\"\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eActive ingredient\u003c\/span\u003e\n\u003ch3\u003eSame as Fish Zole, Fish Zole Forte, and Aqua-Zole\u003c\/h3\u003e\n\u003cp\u003eFix Zole uses the same metronidazole that hobbyists relied on under the Thomas Labs Fish Zole, Fish Zole Forte, and Aqua Soma Labs Aqua-Zole names.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eManufacturer\u003c\/span\u003e\n\u003ch3\u003eNew Fix Product Line\u003c\/h3\u003e\n\u003cp\u003eFix Zole is produced by Aqua Soma Labs, which now manufactures the Fix line after Thomas Labs discontinued its Fish Zole products.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eBottle count\u003c\/span\u003e\n\u003ch3\u003eSame 60-Count Bottles\u003c\/h3\u003e\n\u003cp\u003eEach bottle contains 60 tablets. Choose between the 250 mg and 500 mg strengths according to the treatment-tank size and plan.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003ePresentation\u003c\/span\u003e\n\u003ch3\u003eUpdated Packaging, Same Formula\u003c\/h3\u003e\n\u003cp\u003eThe brand name, bottle design, and label have changed, while the metronidazole tablet strengths remain familiar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"benefits\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eBenefits of Fix Zole for Fish \u0026amp; Birds\u003c\/h2\u003e\n\u003cdiv class=\"fph-benefits-grid\"\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch3\u003eTargeted Protozoan Support\u003c\/h3\u003e\n\u003cp\u003eCommonly used to help manage internal parasites and protozoan flagellates such as Hexamita and Spironucleus, which may be associated with appetite loss, weight loss, white stringy droppings, Malawi bloat, and hole-in-the-head symptoms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch3\u003eStocked and Ready to Ship\u003c\/h3\u003e\n\u003cp\u003eFix Zole ships from a United States warehouse according to the current processing schedule, helping aquarium keepers obtain treatment quickly when concerning signs appear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch3\u003eAvian Vet-Guided Option\u003c\/h3\u003e\n\u003cp\u003eIn non-food pet birds, metronidazole may be used under avian veterinary guidance for specific protozoal concerns such as giardia, frounce, and pigeon canker caused by trichomonosis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch3\u003eFlexible 250 mg or 500 mg Tablets\u003c\/h3\u003e\n\u003cp\u003eChoose the strength that fits your treatment setup. A consistent amount per tablet helps aquarium keepers scale treatment across different tank volumes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e05\u003c\/div\u003e\n\u003ch3\u003eIdeal for Hospital Tanks and Quarantine\u003c\/h3\u003e\n\u003cp\u003eA separate hospital tank makes observation and dosing easier while helping protect the display aquarium's biological filter and sensitive tank mates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e06\u003c\/div\u003e\n\u003ch3\u003eFits a Complete Care Plan\u003c\/h3\u003e\n\u003cp\u003eTreatment works best when combined with stable temperature, clean water, appropriate feeding, good aeration, and reduced environmental stress.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e07\u003c\/div\u003e\n\u003ch3\u003eTargeted, Not a One-Size-Fits-All Remedy\u003c\/h3\u003e\n\u003cp\u003eFix Zole is not normally used for ich, gill flukes, Costia, fungus, or ordinary fin rot unless the cause has been professionally identified.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"usage\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eUsage Guidelines \u0026amp; Instructions\u003c\/h2\u003e\n\u003cdiv class=\"fph-directions-label\"\u003eDirections for Use:\u003c\/div\u003e\n\u003cdiv class=\"fph-steps\"\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e1\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eSet Up a Separate Treatment Area\u003c\/h3\u003e\n\u003cp\u003eMove affected fish to a dedicated hospital or quarantine tank whenever possible.\u003c\/p\u003e\n\u003cp\u003eThis allows you to monitor behavior, control dosing more precisely, and reduce unnecessary exposure in the main display aquarium.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e2\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eDirections for Fish Aquariums\u003c\/h3\u003e\n\u003cp\u003ePre-dissolve the tablet in a small cup of aquarium water, then distribute the prepared solution evenly across the treatment tank.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e250 mg strength:\u003c\/strong\u003e Add one 250 mg tablet per 10 gallons or 38 litres of treatment water.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e500 mg strength:\u003c\/strong\u003e Add one 500 mg tablet per 20 gallons or 76 litres of treatment water.\u003c\/p\u003e\n\u003cp\u003eRepeat the dose every 24 hours and perform a partial water change between treatments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e3\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eAdjust the Filtration\u003c\/h3\u003e\n\u003cp\u003eRemove activated carbon and other chemical filtration media during treatment.\u003c\/p\u003e\n\u003cp\u003eKeep strong aeration running because activated carbon can reduce the amount of metronidazole available in the treatment water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e4\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eContinue Treatment and Monitor Results\u003c\/h3\u003e\n\u003cp\u003eContinue daily treatment for 5 to 10 days and do not exceed 10 days unless specifically directed by a qualified aquatic veterinarian.\u003c\/p\u003e\n\u003cp\u003eIf there is no improvement within five days, discontinue treatment and consult an aquatic professional.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e5\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eUse in Pet Birds Under Veterinary Guidance\u003c\/h3\u003e\n\u003cp\u003eAdminister metronidazole to non-food pet birds only under the direction of an avian veterinarian.\u003c\/p\u003e\n\u003cp\u003eThe veterinarian should confirm the diagnosis and determine the amount, frequency, and duration based on the bird's species, weight, and condition.\u003c\/p\u003e\n\u003cp\u003eTablets may be given whole, divided, or crushed into soft food only as specifically instructed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eFix Zole Amounts by Aquarium Size\u003c\/h3\u003e\n\u003cdiv class=\"fph-table-wrapper\"\u003e\n\u003ctable class=\"fph-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTank volume\u003c\/th\u003e\n\u003cth\u003eMetronidazole per use\u003c\/th\u003e\n\u003cth\u003e250 mg tablets\u003c\/th\u003e\n\u003cth\u003e500 mg tablets\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 gallons (38 L)\u003c\/td\u003e\n\u003ctd\u003e250 mg\u003c\/td\u003e\n\u003ctd\u003e1 tablet\u003c\/td\u003e\n\u003ctd\u003eNot applicable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 gallons (76 L)\u003c\/td\u003e\n\u003ctd\u003e500 mg\u003c\/td\u003e\n\u003ctd\u003e2 tablets\u003c\/td\u003e\n\u003ctd\u003e1 tablet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30 gallons (114 L)\u003c\/td\u003e\n\u003ctd\u003e750 mg\u003c\/td\u003e\n\u003ctd\u003e3 tablets\u003c\/td\u003e\n\u003ctd\u003e1 tablet plus one 250 mg tablet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40 gallons (151 L)\u003c\/td\u003e\n\u003ctd\u003e1,000 mg\u003c\/td\u003e\n\u003ctd\u003e4 tablets\u003c\/td\u003e\n\u003ctd\u003e2 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e55 gallons (208 L)\u003c\/td\u003e\n\u003ctd\u003eApproximately 1,375 mg\u003c\/td\u003e\n\u003ctd\u003e5 to 6 tablets\u003c\/td\u003e\n\u003ctd\u003eApproximately 3 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eThese figures follow the label-style guideline of 250 mg per 10 gallons, approximately 25 mg per gallon. Dose according to the water volume of the treatment tank, not the number of fish. The current bottle label or your aquatic veterinarian's instructions take priority over this quick-reference chart.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat to Expect During Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-timeline\"\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 1 to 2\u003c\/h3\u003e\n\u003cp\u003eFish may hide or eat less while treatment begins. Maintain the schedule and keep aeration strong.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 3 to 5\u003c\/h3\u003e\n\u003cp\u003eLook for improving appetite, more normal droppings, and steadier activity. Stop and seek professional advice if the fish worsen or no change is seen by day five.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 5 to 10\u003c\/h3\u003e\n\u003cp\u003eComplete the recommended treatment period even when improvement appears. After treatment, perform a partial water change and restore activated carbon.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat You Need Before You Start\u003c\/h3\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003cp\u003ePrepare the following supplies before administering the first treatment:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA separate hospital or quarantine tank\u003c\/li\u003e\n\u003cli\u003eA suitable heater\u003c\/li\u003e\n\u003cli\u003eAn air stone or established sponge filter\u003c\/li\u003e\n\u003cli\u003eAn ammonia and nitrite test kit\u003c\/li\u003e\n\u003cli\u003eAquarium dechlorinator\u003c\/li\u003e\n\u003cli\u003eA small net for gentle transfer\u003c\/li\u003e\n\u003cli\u003eA clean cup for pre-dissolving each tablet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-pro-tip\"\u003e\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e After treatment, perform a partial water change and reintroduce activated carbon, if normally used, to help clear remaining treatment from the aquarium water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"how-it-works\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eHow Fix Zole Works\u003c\/h2\u003e\n\u003cp class=\"fph-lead\"\u003eFix Zole uses metronidazole, an ingredient aquarium keepers have relied on for years for certain protozoan and anaerobic-sensitive problems.\u003c\/p\u003e\n\u003cp\u003eIn practical terms, metronidazole works against specific protozoa and anaerobic organisms, giving affected fish a better opportunity to recover when the underlying condition is susceptible to it.\u003c\/p\u003e\n\u003cp\u003eThis is why aquarium keepers use it when they suspect intestinal flagellates such as Hexamita and Spironucleus rather than for ich, flukes, fungal problems, or typical fin rot.\u003c\/p\u003e\n\u003cp\u003eEach tablet also contains standard inactive ingredients that help hold the tablet together, support storage stability, and allow the tablet to disperse when mixed with water.\u003c\/p\u003e\n\u003cp\u003eThe exact inactive ingredient list may vary by batch and may not always be publicly listed.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"safety\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eSafety and Tank Notes\u003c\/h2\u003e\n\u003cp\u003eWhen used as directed, Fix Zole usually causes no problems in ornamental aquarium fish and non-food pet birds.\u003c\/p\u003e\n\u003cp\u003eIncorrect amounts, extended treatment, unnecessary repeat treatments, or combining multiple products can increase stress and the risk of unwanted effects.\u003c\/p\u003e\n\u003cdiv class=\"fph-safety-grid\"\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eFish\u003c\/h3\u003e\n\u003cp\u003ePossible reactions include temporarily reduced appetite, mild lethargy, or hiding behavior.\u003c\/p\u003e\n\u003cp\u003eIf severe distress develops, including rapid gill movement, loss of balance, surface gasping, or lying on the bottom, stop treatment, increase aeration, perform a partial water change, and seek aquatic veterinary advice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eBirds\u003c\/h3\u003e\n\u003cp\u003eUse metronidazole only under avian veterinary guidance.\u003c\/p\u003e\n\u003cp\u003ePossible reactions may include reduced appetite, loose or changed droppings, and lethargy, particularly if the bird is sensitive or the administered amount is incorrect.\u003c\/p\u003e\n\u003cp\u003eIf the bird becomes fluffed up, inactive, or stops eating, discontinue use and contact an avian veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eInvertebrates\u003c\/h3\u003e\n\u003cp\u003eSensitivity can vary between shrimp, snails, corals, and other invertebrates.\u003c\/p\u003e\n\u003cp\u003eWhenever possible, treat fish in a separate hospital tank rather than dosing a display aquarium containing sensitive invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eSafe Use in Your System\u003c\/h3\u003e\n\u003cp\u003eDo not combine Fix Zole with other treatments unless advised by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eAvoid routine preventative use. If symptoms persist or return, confirm the diagnosis before repeating treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-warning\"\u003e\n\u003ch3\u003eStorage \u0026amp; Handling\u003c\/h3\u003e\n\u003cp\u003eStore Fix Zole at a controlled room temperature of 59–86°F or 15–30°C in a cool, dry place.\u003c\/p\u003e\n\u003cp\u003eKeep the container tightly closed to protect the tablets from moisture and light.\u003c\/p\u003e\n\u003cp\u003eKeep out of reach of children and pets.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Safety Warning:\u003c\/strong\u003e Fix Zole is intended for ornamental aquarium fish and non-food pet birds only. It is not for animals raised for food. Always follow current label directions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"shipping\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cdiv class=\"fph-policy-grid\"\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eShipping Policy\u003c\/h3\u003e\n\u003cp\u003eOrders ship from our United States warehouse within one business day through USPS or UPS.\u003c\/p\u003e\n\u003cp\u003eShipping rates and estimated delivery times are calculated at checkout.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/shipping-policy\"\u003eReview Shipping Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eRefund Policy\u003c\/h3\u003e\n\u003cp\u003eIf there is an issue with your order, eligible items may be returned or exchanged within 30 days according to the current store guidelines.\u003c\/p\u003e\n\u003cp\u003eReview the refund policy before sending any product back.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/refund-policy\"\u003eReview Refund Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"faq\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"fph-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is Fix Zole used for in aquarium fish and pet birds?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zole contains metronidazole and is used for certain protozoan and anaerobic-sensitive problems in ornamental fish. These may include Hexamita, Spironucleus, white stringy droppings, internal flagellates, Malawi bloat, and hole-in-the-head symptoms.\u003c\/p\u003e\n\u003cp\u003eUse in non-food pet birds should occur only under avian veterinary guidance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is in Fix Zole?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eEach tablet contains either 250 mg or 500 mg of metronidazole. Both strengths are supplied in 60-count bottles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does metronidazole treat in fish?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eMetronidazole is generally used against certain internal protozoa, intestinal flagellates, and anaerobic organisms. It is commonly associated with treatment plans for Hexamita and Spironucleus in susceptible ornamental fish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Zole the same as Fish Zole or Fish Zole Forte?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zole is presented as the current Aqua Soma Labs replacement for the discontinued Fish Zole and Fish Zole Forte products. The familiar 250 mg and 500 mg metronidazole tablet strengths remain available.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Zole the same as Aqua-Zole by Aqua Soma Labs?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zole is the updated Fix-brand version of the metronidazole tablets previously sold under names such as Aqua-Zole.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill Fix Zole harm my tank's biological filter?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eTreatment may disturb aquarium balance, particularly when used in a display aquarium. A separate hospital tank is preferred, and ammonia and nitrite should be monitored throughout treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose between 250 mg and 500 mg tablets?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eChoose the strength according to the treatment-tank volume. The supplied guide uses one 250 mg tablet per 10 gallons or one 500 mg tablet per 20 gallons.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I give Fix Zole to my dog or cat?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eNo. This product is labeled for ornamental aquarium fish and non-food pet birds. It is not intended for dogs, cats, humans, or food-producing animals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes metronidazole help with hole-in-the-head symptoms?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAquarium keepers commonly use metronidazole when hole-in-the-head symptoms are suspected to involve intestinal flagellates such as Hexamita or Spironucleus. Similar lesions may have other causes, so diagnosis is important.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill Fix Zole treat ich or gill flukes?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zole is not normally used for ich, white spot disease, or gill flukes. Those conditions generally require different treatment approaches.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Zole treat fin rot or other bacterial infections?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zole is not normally the first choice for typical fin rot. It is more commonly used for certain protozoan flagellates and anaerobic-sensitive problems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use Fix Zole as routine prevention?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eRoutine preventative use is not recommended. Treatment should be based on observed symptoms, the product label, and professional guidance when the diagnosis is uncertain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long should I treat with Fix Zole?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied directions describe treatment every 24 hours for 5 to 10 days, without exceeding 10 days. Follow the current bottle label and discontinue if no improvement is seen within five days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow much metronidazole do I use per gallon?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied reference is 250 mg per 10 gallons, approximately 25 mg per gallon. Pre-dissolve the tablet in aquarium water and dose according to the actual water volume of the treatment tank.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Zole safe in saltwater tanks?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zole is presented for freshwater and saltwater treatment tanks. A separate hospital tank is recommended, especially when the display aquarium contains corals or other invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Zole reef-safe or safe with shrimp and snails?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eSensitivity varies by species. Treat fish separately whenever possible rather than exposing shrimp, snails, corals, and other invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I combine Fix Zole with other treatments?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDo not combine treatments unless a veterinarian or qualified aquatic professional specifically recommends the combination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I administer metronidazole to pet birds?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAdminister metronidazole to non-food pet birds only under avian veterinary direction. The veterinarian must determine the amount, administration method, frequency, and duration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow soon should I see improvement with Fix Zole?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eSome improvement may become visible within three to five days through increased appetite, more normal droppings, and improved activity. Stop and seek professional advice if the animal worsens or no improvement is seen within five days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhere can I buy metronidazole for fish online?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zole 250 mg and 500 mg tablets can be ordered through this online store and shipped according to the current United States warehouse processing and shipping policy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eMore Fish \u0026amp; Bird Treatments\u003c\/h2\u003e\n\u003cdiv class=\"fph-related-grid\"\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Mox (Amoxicillin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, dropsy, ulcers, and other bacterial infections in ornamental fish. Available in 30-count and 100-count capsules.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-mox\"\u003eShop Fix Mox →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Doxy (Doxycycline) 100 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for columnaris, respiratory infections, and Mycoplasma concerns in ornamental fish and non-food pet birds. Available in 30-count and 60-count tablets.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-doxy\"\u003eShop Fix Doxy →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zithro (Azithromycin) 250 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, columnaris, gill disease, and avian respiratory concerns. Available in 12-count and 30-count tablets.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zithro\"\u003eShop Fix Zithro →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Cin (Clindamycin) 150 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for Gram-positive bacterial problems, including skin and soft-tissue concerns, in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-cin\"\u003eShop Fix Cin →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Sulfa (SMZ\/TMP) 960 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment used against a range of bacterial problems in ornamental aquarium fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-sulfa\"\u003eShop Fix Sulfa →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Pen (Penicillin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for Gram-positive bacterial problems in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-pen\"\u003eShop Fix Pen →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flex (Cephalexin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, ulcers, and bacterial skin problems in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flex\"\u003eShop Fix Flex →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flox (Ciprofloxacin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for Gram-negative bacterial problems including fin rot, ulcers, columnaris, and septicemia.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flox\"\u003eShop Fix Flox →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-grid\"\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eBrowse All Treatments\u003c\/h3\u003e\n\u003cp\u003eExplore our complete Fish \u0026amp; Bird Treatments Collection for more Fix line products and related care.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/collections\/fish-antibiotics\"\u003eExplore the Collection → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eGuides and Treatment Tips\u003c\/h3\u003e\n\u003cp\u003eVisit the Fish \u0026amp; Bird Care Blog for practical usage guides, aquarium water-care advice, and treatment tips.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/blogs\/fish-antibiotics\"\u003eVisit the Blog → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-image-note\"\u003eTap the product image above to expand and zoom 🔍\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003cdiv class=\"fph-verification\"\u003e\n\u003cdiv class=\"fph-verification-header\"\u003e\n\u003ch2\u003eTransparency \u0026amp; Verification\u003c\/h2\u003e\n\u003cp\u003eHow Product Information Is Verified\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eWho is responsible for this page:\u003c\/strong\u003e The store editorial team responsible for reviewing and maintaining product information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVerification snapshot:\u003c\/strong\u003e This page is written from the current product label for this item and reviewed for accuracy and consistency before publishing.\u003c\/p\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eHow We Verify Product Information\u003c\/h3\u003e\n\u003cdiv class=\"fph-verification-grid\"\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eLabel-First Accuracy\u003c\/h3\u003e\n\u003cp\u003eDirections, treatment duration, storage, and warnings are taken from the current product label for this item.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eSpecification Validation\u003c\/h3\u003e\n\u003cp\u003eKey information such as ingredient names, tablet strengths, and bottle counts is cross-checked against available manufacturer specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eConsistency Checks\u003c\/h3\u003e\n\u003cp\u003eProduct pages are reviewed for consistent directions, strengths, storage details, and warnings across all sections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eUpdates\u003c\/h3\u003e\n\u003cp\u003ePages are updated when product labels, packaging, tablet strengths, or manufacturer information changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eWhat we do not do:\u003c\/strong\u003e We do not invent claims, and we do not add usage directions beyond what the current product label states for the intended use.\u003c\/div\u003e\n\u003cp style=\"margin-top: 25px;\"\u003eSee something that does not match the product you received? Please \u003cstrong\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003ca href=\"https:\/\/www.calvetsupply.com\/pages\/contact-us\" style=\"color: rgb(255, 128, 0);\"\u003econtact us \u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003eso the page can be reviewed and updated.\u003c\/p\u003e\n\u003cdiv class=\"fph-educational-note\"\u003e\n\u003cstrong\u003eEducational use:\u003c\/strong\u003e This content is provided for general informational purposes only and is not a substitute for advice from a qualified veterinarian.\u003c\/div\u003e\n\u003cdiv class=\"fph-reviewed\"\u003eLast reviewed: July 10, 2026\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Aqua Soma Labs","offers":[{"title":"250-mg (60 Count)","offer_id":45972964802594,"sku":"267840","price":40.99,"currency_code":"USD","in_stock":true},{"title":"500-mg (60 Count)","offer_id":45972964835362,"sku":"029850","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/7008\/3874\/files\/Fish_Zole_250.png?v=1783910565"},{"product_id":"fish-zithro","title":"Fish Zithro (Fix Zithro) Azithromycin 250mg Fish Antibacterial","description":"\u003cstyle\u003e\n  .fph-product-copy {\n    --fph-orange: #e37111;\n    --fph-teal: #148d85;\n    --fph-green: #64ad82;\n    --fph-dark: #09213f;\n    --fph-text: #24374e;\n    --fph-muted: #64748b;\n    --fph-border: #dce3eb;\n    --fph-light: #f5f8fa;\n    --fph-teal-light: #eef8f6;\n    --fph-orange-light: #fff6ed;\n    --fph-white: #ffffff;\n\n    width: 100%;\n    max-width: 1675px;\n    margin: 0 auto;\n    padding-right: 40px;\n    padding-left: 40px;\n    color: var(--fph-text);\n    font-family: inherit;\n    font-size: 17px;\n    line-height: 1.7;\n  }\n\n  .fph-product-copy,\n  .fph-product-copy * {\n    box-sizing: border-box;\n  }\n\n  .fph-product-copy section {\n    scroll-margin-top: 120px;\n  }\n\n  .fph-product-copy p {\n    margin: 0 0 18px;\n  }\n\n  .fph-product-copy strong {\n    font-weight: 750;\n  }\n\n  .fph-product-title {\n    margin: 0 0 26px;\n    color: var(--fph-dark);\n    font-size: clamp(34px, 4vw, 52px);\n    font-weight: 800;\n    line-height: 1.12;\n    letter-spacing: -0.025em;\n  }\n\n  .fph-section-title {\n    margin: 0 0 22px;\n    color: var(--fph-dark);\n    font-size: clamp(29px, 3vw, 40px);\n    font-weight: 800;\n    line-height: 1.2;\n    letter-spacing: -0.02em;\n  }\n\n  .fph-subtitle {\n    margin: 32px 0 16px;\n    color: var(--fph-dark);\n    font-size: 23px;\n    font-weight: 750;\n    line-height: 1.35;\n  }\n\n  .fph-lead {\n    color: #30445d;\n    font-size: 19px;\n    line-height: 1.8;\n  }\n\n  .fph-section {\n    padding: 55px 0;\n    border-top: 1px solid #edf0f3;\n  }\n\n  .fph-section:first-of-type {\n    border-top: 0;\n  }\n\n  .fph-toc {\n    display: flex;\n    align-items: center;\n    gap: 10px;\n    margin: 0 0 45px;\n    padding: 4px 0 10px;\n    overflow-x: auto;\n    scrollbar-width: none;\n  }\n\n  .fph-toc::-webkit-scrollbar {\n    display: none;\n  }\n\n  .fph-toc-label {\n    flex: 0 0 auto;\n    margin-right: 4px;\n    color: var(--fph-dark);\n    font-weight: 800;\n    white-space: nowrap;\n  }\n\n  .fph-toc a {\n    flex: 0 0 auto;\n    display: inline-flex;\n    align-items: center;\n    min-height: 48px;\n    padding: 10px 21px;\n    border: 1px solid var(--fph-border);\n    border-radius: 999px;\n    background: #f8fafc;\n    color: var(--fph-dark);\n    font-size: 16px;\n    font-weight: 500;\n    line-height: 1.2;\n    text-decoration: none;\n    white-space: nowrap;\n    transition: 0.25s ease;\n  }\n\n  .fph-toc a:hover {\n    border-color: var(--fph-teal);\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    transform: translateY(-2px);\n  }\n\n  .fph-glance {\n    margin: 0 0 55px;\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 20px;\n    background: var(--fph-white);\n  }\n\n  .fph-glance-heading {\n    padding: 20px 24px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n    font-size: 23px;\n    font-weight: 800;\n  }\n\n  .fph-glance-row {\n    display: grid;\n    grid-template-columns: 40% 60%;\n    border-top: 1px solid var(--fph-border);\n  }\n\n  .fph-glance-label,\n  .fph-glance-value {\n    padding: 16px 19px;\n  }\n\n  .fph-glance-label {\n    background: #f3f5f7;\n    color: var(--fph-dark);\n    font-weight: 750;\n  }\n\n  .fph-glance-value {\n    background: #f9fafb;\n  }\n\n  .fph-two-column {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 22px;\n    margin-top: 28px;\n  }\n\n  .fph-info-box {\n    padding: 26px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-light);\n  }\n\n  .fph-info-box h3 {\n    margin: 0 0 14px;\n    color: var(--fph-dark);\n    font-size: 22px;\n    font-weight: 750;\n  }\n\n  .fph-info-box ul {\n    margin: 0;\n    padding-left: 21px;\n  }\n\n  .fph-info-box li {\n    margin: 8px 0;\n  }\n\n  .fph-highlight-note {\n    margin: 26px 0 0;\n    padding: 21px 23px;\n    border-left: 5px solid var(--fph-orange);\n    border-radius: 0 15px 15px 0;\n    background: var(--fph-orange-light);\n    color: #63310c;\n  }\n\n  .fph-order-note {\n    margin-top: 25px;\n    padding: 24px;\n    border: 1px solid #cde4de;\n    border-radius: 17px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-order-note p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-comparison-grid {\n    display: grid;\n    grid-template-columns: repeat(4, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 28px;\n  }\n\n  .fph-comparison-card {\n    padding: 25px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: linear-gradient(145deg, #eef8f6 0%, #ffffff 100%);\n  }\n\n  .fph-small-label {\n    display: block;\n    margin-bottom: 9px;\n    color: var(--fph-teal);\n    font-size: 12px;\n    font-weight: 800;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n  }\n\n  .fph-comparison-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-comparison-card p {\n    margin: 0;\n    color: var(--fph-muted);\n  }\n\n  .fph-benefits-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 28px;\n  }\n\n  .fph-benefit-card {\n    padding: 28px;\n    border: 1px solid var(--fph-border);\n    border-radius: 19px;\n    background: var(--fph-white);\n    box-shadow: 0 8px 28px rgba(15, 42, 70, 0.06);\n    transition: 0.3s ease;\n  }\n\n  .fph-benefit-card:hover {\n    transform: translateY(-5px);\n    box-shadow: 0 15px 38px rgba(15, 42, 70, 0.11);\n  }\n\n  .fph-benefit-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 45px;\n    height: 45px;\n    margin-bottom: 18px;\n    border-radius: 50%;\n    background: var(--fph-orange);\n    color: var(--fph-white);\n    font-size: 15px;\n    font-weight: 800;\n  }\n\n  .fph-benefit-card:nth-child(2n) .fph-benefit-number {\n    background: var(--fph-teal);\n  }\n\n  .fph-benefit-card:nth-child(3n) .fph-benefit-number {\n    background: var(--fph-green);\n  }\n\n  .fph-benefit-card h3 {\n    margin: 0 0 11px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-benefit-card p {\n    margin: 0;\n    color: var(--fph-muted);\n  }\n\n  .fph-directions-label {\n    margin: 0 0 22px;\n    color: var(--fph-teal);\n    font-size: 21px;\n    font-weight: 800;\n  }\n\n  .fph-steps {\n    display: grid;\n    gap: 18px;\n  }\n\n  .fph-step {\n    display: grid;\n    grid-template-columns: 62px minmax(0, 1fr);\n    gap: 18px;\n    padding: 25px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: #f1f9f7;\n  }\n\n  .fph-step-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 48px;\n    height: 48px;\n    border-radius: 50%;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-size: 19px;\n    font-weight: 800;\n  }\n\n  .fph-step h3 {\n    margin: 2px 0 9px;\n    color: var(--fph-dark);\n    font-size: 22px;\n    line-height: 1.35;\n  }\n\n  .fph-step p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-table-wrapper {\n    margin-top: 30px;\n    overflow-x: auto;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n  }\n\n  .fph-table {\n    width: 100%;\n    min-width: 650px;\n    border-collapse: collapse;\n    background: var(--fph-white);\n  }\n\n  .fph-table th,\n  .fph-table td {\n    padding: 16px 19px;\n    border-bottom: 1px solid var(--fph-border);\n    text-align: left;\n    vertical-align: top;\n  }\n\n  .fph-table th {\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-weight: 750;\n  }\n\n  .fph-table tr:nth-child(even) td {\n    background: #f7f9fa;\n  }\n\n  .fph-table tr:last-child td {\n    border-bottom: 0;\n  }\n\n  .fph-timeline {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 25px;\n  }\n\n  .fph-timeline-card {\n    padding: 25px;\n    border-radius: 18px;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n  }\n\n  .fph-timeline-card:nth-child(2) {\n    background: var(--fph-green);\n  }\n\n  .fph-timeline-card:nth-child(3) {\n    background: var(--fph-orange);\n  }\n\n  .fph-timeline-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-white);\n    font-size: 22px;\n  }\n\n  .fph-timeline-card p {\n    margin: 0;\n    color: var(--fph-white);\n  }\n\n  .fph-pro-tip {\n    margin-top: 22px;\n    padding: 22px 24px;\n    border-radius: 17px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-dark) 0%,\n      var(--fph-teal) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-pro-tip p {\n    margin: 0;\n    color: var(--fph-white);\n  }\n\n  .fph-safety-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 27px;\n  }\n\n  .fph-safety-card {\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n  }\n\n  .fph-safety-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-teal);\n    font-size: 22px;\n  }\n\n  .fph-safety-card p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-warning {\n    margin-top: 22px;\n    padding: 25px;\n    border: 1px solid #efc49c;\n    border-radius: 18px;\n    background: var(--fph-orange-light);\n  }\n\n  .fph-warning h3 {\n    margin: 0 0 10px;\n    color: #a84b06;\n    font-size: 22px;\n  }\n\n  .fph-warning p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-policy-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 26px;\n  }\n\n  .fph-policy-card {\n    padding: 27px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-light);\n  }\n\n  .fph-policy-card h3 {\n    margin: 0 0 11px;\n    color: var(--fph-dark);\n    font-size: 22px;\n  }\n\n  .fph-policy-card a {\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-policy-card a:hover {\n    text-decoration: underline;\n  }\n\n  .fph-faq {\n    display: grid;\n    gap: 12px;\n    margin-top: 27px;\n  }\n\n  .fph-faq details {\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 15px;\n    background: var(--fph-white);\n  }\n\n  .fph-faq summary {\n    position: relative;\n    padding: 19px 58px 19px 21px;\n    color: var(--fph-dark);\n    font-weight: 750;\n    cursor: pointer;\n    list-style: none;\n  }\n\n  .fph-faq summary::-webkit-details-marker {\n    display: none;\n  }\n\n  .fph-faq summary::after {\n    content: \"+\";\n    position: absolute;\n    top: 50%;\n    right: 21px;\n    color: var(--fph-teal);\n    font-size: 27px;\n    line-height: 1;\n    transform: translateY(-50%);\n  }\n\n  .fph-faq details[open] summary::after {\n    content: \"−\";\n  }\n\n  .fph-faq details[open] summary {\n    background: var(--fph-teal-light);\n  }\n\n  .fph-faq-answer {\n    padding: 0 21px 20px;\n    color: var(--fph-muted);\n  }\n\n  .fph-faq-answer p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-related-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 27px;\n  }\n\n  .fph-related-card {\n    display: flex;\n    flex-direction: column;\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n    box-shadow: 0 7px 24px rgba(15, 42, 70, 0.05);\n  }\n\n  .fph-related-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-related-card p {\n    flex: 1;\n    color: var(--fph-muted);\n  }\n\n  .fph-related-card a {\n    margin-top: auto;\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-related-card a:hover {\n    text-decoration: underline;\n  }\n\n  .fph-browse-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 20px;\n  }\n\n  .fph-browse-card {\n    padding: 26px;\n    border-radius: 18px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card:nth-child(2) {\n    background: linear-gradient(\n      135deg,\n      var(--fph-orange) 0%,\n      #f09a47 100%\n    );\n  }\n\n  .fph-browse-card h3,\n  .fph-browse-card p,\n  .fph-browse-card a {\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card h3 {\n    margin: 0 0 9px;\n    font-size: 22px;\n  }\n\n  .fph-browse-card a {\n    font-weight: 800;\n  }\n\n  .fph-image-note {\n    margin-top: 40px;\n    padding: 16px 20px;\n    border: 1px dashed var(--fph-border);\n    border-radius: 14px;\n    background: #fafbfc;\n    text-align: center;\n    font-weight: 700;\n  }\n\n  .fph-verification {\n    margin-top: 30px;\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 20px;\n    background: var(--fph-white);\n  }\n\n  .fph-verification-header {\n    padding: 25px;\n    background: var(--fph-dark);\n    color: var(--fph-white);\n  }\n\n  .fph-verification-header h2 {\n    margin: 0 0 7px;\n    color: var(--fph-white);\n    font-size: 29px;\n  }\n\n  .fph-verification-header p {\n    margin: 0;\n    color: rgba(255, 255, 255, 0.88);\n  }\n\n  .fph-verification-body {\n    padding: 27px;\n  }\n\n  .fph-verification-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin: 24px 0;\n  }\n\n  .fph-verification-card {\n    padding: 23px;\n    border: 1px solid #cfe2df;\n    border-radius: 16px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-verification-card h3 {\n    margin: 0 0 9px;\n    color: var(--fph-teal);\n    font-size: 20px;\n  }\n\n  .fph-verification-card p {\n    margin: 0;\n  }\n\n  .fph-contact-link {\n    color: var(--fph-orange);\n    font-weight: 750;\n  }\n\n  .fph-educational-note {\n    margin-top: 24px;\n    padding: 20px 22px;\n    border-radius: 15px;\n    background: #eef3f7;\n    color: #42566d;\n    font-size: 15px;\n  }\n\n  .fph-reviewed {\n    margin-top: 18px;\n    color: var(--fph-muted);\n    font-size: 14px;\n  }\n\n  @media (max-width: 1050px) {\n    .fph-comparison-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n\n    .fph-benefits-grid,\n    .fph-related-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n  }\n\n  @media (max-width: 749px) {\n    .fph-product-copy {\n      padding-right: 18px;\n      padding-left: 18px;\n      font-size: 16px;\n      line-height: 1.65;\n    }\n\n    .fph-product-title {\n      font-size: 32px;\n    }\n\n    .fph-section {\n      padding: 39px 0;\n    }\n\n    .fph-section-title {\n      font-size: 28px;\n    }\n\n    .fph-toc-label {\n      display: none;\n    }\n\n    .fph-toc a {\n      min-height: 44px;\n      padding: 9px 17px;\n      font-size: 15px;\n    }\n\n    .fph-glance-row {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-glance-label {\n      padding-bottom: 7px;\n    }\n\n    .fph-glance-value {\n      padding-top: 7px;\n    }\n\n    .fph-two-column,\n    .fph-comparison-grid,\n    .fph-benefits-grid,\n    .fph-timeline,\n    .fph-safety-grid,\n    .fph-policy-grid,\n    .fph-related-grid,\n    .fph-browse-grid,\n    .fph-verification-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-step {\n      grid-template-columns: 48px minmax(0, 1fr);\n      gap: 14px;\n      padding: 20px;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"fph-product-copy\"\u003e\n\u003csection class=\"fph-section\" id=\"overview\"\u003e\n\u003ch1 class=\"fph-product-title\"\u003eFish Zithro (Fix Zithro) Azithromycin Tablets - 250 mg\u003c\/h1\u003e\n\u003cnav class=\"fph-toc\" aria-label=\"On this page\"\u003e\u003cspan class=\"fph-toc-label\"\u003eOn this page:\u003c\/span\u003e \u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e \u003ca href=\"#bird-zithro-vs-fix-zithro\"\u003eBird Zithro vs Fix Zithro\u003c\/a\u003e \u003ca href=\"#benefits\"\u003eBenefits\u003c\/a\u003e \u003ca href=\"#usage\"\u003eUsage\u003c\/a\u003e \u003ca href=\"#how-it-works\"\u003eHow It Works\u003c\/a\u003e \u003ca href=\"#safety\"\u003eSafety\u003c\/a\u003e \u003ca href=\"#shipping\"\u003eShipping\u003c\/a\u003e \u003ca href=\"#faq\"\u003eFAQ\u003c\/a\u003e\u003c\/nav\u003e\n\u003cdiv class=\"fph-glance\"\u003e\n\u003cdiv class=\"fph-glance-heading\"\u003eFix Zithro at a Glance\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eFor\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eOrnamental aquarium fish \u0026amp; non-food pet birds\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eHelps with\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFin and tail rot, columnaris, gill disease, and early respiratory signs in birds\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eForm\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eCrushable tablets, 250 mg each\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eCount sizes\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003e12-count and 30-count bottles\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eWater type\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFreshwater and saltwater\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eMade in\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eUnited States by Aqua Soma Labs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"fph-lead\"\u003e\u003cstrong\u003eFish Zithro (Fix Zithro)\u003c\/strong\u003e supplies 250 mg of azithromycin per tablet and is an antibacterial treatment for ornamental aquarium fish and non-food pet birds.\u003c\/p\u003e\n\u003cp\u003eIt is often selected to help manage suspected bacterial problems such as fin and tail rot, columnaris, gill disease, and early respiratory signs in pet birds.\u003c\/p\u003e\n\u003cp\u003eOften called Bird Zithro or Fish Zithro in the hobby community, Fix Zithro is a replacement for the discontinued Thomas Labs Bird Zithro, Fish Zithro, and Aqua Zithro 250 mg products.\u003c\/p\u003e\n\u003cp\u003eThis azithromycin tablet from the Aqua Soma Labs Fix range is used for common problems such as fin and tail rot, columnaris, gill disease, bacterial hemorrhagic septicemia, and other bacterial infections in freshwater and saltwater aquariums.\u003c\/p\u003e\n\u003cp\u003eBird keepers may also use it under veterinary guidance for mild upper respiratory tract infections, suspected Mycoplasma concerns, or conditions associated with Chlamydia psittaci, including psittacosis, parrot fever, and ornithosis in pigeons and other pet birds.\u003c\/p\u003e\n\u003cp\u003eAzithromycin helps slow or stop the growth of certain bacteria affecting the gills, skin, and respiratory tract.\u003c\/p\u003e\n\u003cp\u003eWhen used as directed, it works best alongside appropriate husbandry, clean water, stable environmental conditions, and suitable nutrition.\u003c\/p\u003e\n\u003cp\u003eFix Zithro from Aqua Soma Labs is available in bottles of 12 or 30 tablets with fresh expiration dates.\u003c\/p\u003e\n\u003cp\u003eThe two bottle sizes provide flexible options for hobbyists maintaining a single hospital tank, several community aquariums, or an aviary under veterinary guidance.\u003c\/p\u003e\n\u003cp\u003eUse Fix Zithro when early signs of bacterial stress appear. Symptoms may differ between fish and birds, so the lists below separate the most common signs by species.\u003c\/p\u003e\n\u003cdiv class=\"fph-two-column\"\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eFish-Specific Symptoms\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eClamped or frayed fins associated with fin and tail rot\u003c\/li\u003e\n\u003cli\u003eRed or cloudy patches on the body\u003c\/li\u003e\n\u003cli\u003eFuzzy patches that may suggest columnaris\u003c\/li\u003e\n\u003cli\u003ePop-eye or exophthalmia\u003c\/li\u003e\n\u003cli\u003eGill irritation or labored gill movement\u003c\/li\u003e\n\u003cli\u003eSecondary bacterial problems around gill-fluke damage\u003c\/li\u003e\n\u003cli\u003eListlessness or persistent appetite loss\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eBird-Specific Symptoms\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSneezing or nasal discharge\u003c\/li\u003e\n\u003cli\u003eUpper respiratory tract infection signs\u003c\/li\u003e\n\u003cli\u003eSwollen eyes or sinus irritation\u003c\/li\u003e\n\u003cli\u003eSuspected Mycoplasma-related concerns\u003c\/li\u003e\n\u003cli\u003eSigns associated with Chlamydia psittaci or parrot fever\u003c\/li\u003e\n\u003cli\u003eRuffled feathers or a fluffed-up posture\u003c\/li\u003e\n\u003cli\u003eReduced activity or appetite loss\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 28px;\"\u003eAddress suspected bacterial problems early, maintain clean water, and consult an aquatic or avian professional whenever one is available.\u003c\/p\u003e\n\u003cp\u003eCombining treatment with proper husbandry gives fish and birds a better opportunity to recover while helping keep the aquarium or aviary stable.\u003c\/p\u003e\n\u003cdiv class=\"fph-order-note\"\u003e\n\u003cp\u003e\u003cstrong\u003eOrder online for same-day dispatch\u003c\/strong\u003e on qualifying orders placed before 1:30 p.m. CT, Monday through Friday. Fix Zithro ships directly from our United States warehouse through USPS or UPS.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e This product is intended for aquarium and ornamental fish and non-food pet birds only. It is not for animals used for food.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"bird-zithro-vs-fix-zithro\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eBird Zithro vs Fix Zithro: What Changed?\u003c\/h2\u003e\n\u003cp\u003eIf you previously purchased Thomas Labs Bird Zithro, Fish Zithro, or Aqua Zithro, here is what has changed and what remains the same.\u003c\/p\u003e\n\u003cdiv class=\"fph-comparison-grid\"\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eActive ingredient\u003c\/span\u003e\n\u003ch3\u003eSame Azithromycin, Same Strength\u003c\/h3\u003e\n\u003cp\u003eFix Zithro contains the same 250 mg of azithromycin per tablet associated with Bird Zithro, Fish Zithro, and Aqua Zithro.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eManufacturer\u003c\/span\u003e\n\u003ch3\u003eNew Manufacturer\u003c\/h3\u003e\n\u003cp\u003eFix Zithro is made by Aqua Soma Labs in the United States, replacing the discontinued Thomas Labs product line.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eTablet format\u003c\/span\u003e\n\u003ch3\u003eSame Crushable Tablet Form\u003c\/h3\u003e\n\u003cp\u003eFix Zithro uses a crushable tablet format that can be dissolved in aquarium water or administered to birds exactly as directed by an avian veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eBottle sizes\u003c\/span\u003e\n\u003ch3\u003e12-Count and 30-Count Options\u003c\/h3\u003e\n\u003cp\u003eChoose a 12-count bottle for smaller setups or occasional use, or a 30-count bottle for multiple tanks or veterinarian-directed aviary management.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"benefits\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eBenefits of Fix Zithro for Fish \u0026amp; Birds\u003c\/h2\u003e\n\u003cdiv class=\"fph-benefits-grid\"\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch3\u003eBacterial Support for Fish \u0026amp; Birds\u003c\/h3\u003e\n\u003cp\u003eFix Zithro provides azithromycin for ornamental fish and non-food pet birds. It may help manage fin and tail rot, columnaris, gill disease, and early respiratory or ornithosis-complex signs when used as directed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch3\u003eReady to Use Promptly\u003c\/h3\u003e\n\u003cp\u003eKeeping Fix Zithro properly stored means treatment is available when early bacterial signs appear. Avian use should still follow professional veterinary guidance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch3\u003eHelps With Internal and External Problems\u003c\/h3\u003e\n\u003cp\u003eAzithromycin may be used for skin lesions, ulcers, fin damage, and internal bacterial concerns in a hospital tank, as well as part of a veterinarian-directed plan for respiratory or Mycoplasma-related concerns in birds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch3\u003eConsistent 250 mg Tablets\u003c\/h3\u003e\n\u003cp\u003eEach tablet contains a consistent 250 mg amount, simplifying treatment calculations across different aquarium volumes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e05\u003c\/div\u003e\n\u003ch3\u003eEasy to Prepare\u003c\/h3\u003e\n\u003cp\u003eCrushable tablets can be dissolved in aquarium water or administered to birds in the exact form and amount directed by an avian veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e06\u003c\/div\u003e\n\u003ch3\u003eFreshwater, Saltwater \u0026amp; Aviary Setups\u003c\/h3\u003e\n\u003cp\u003eFix Zithro can be used in properly prepared freshwater or marine treatment systems and may be considered for pigeons and ornamental birds under veterinary supervision.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e07\u003c\/div\u003e\n\u003ch3\u003eIdeal for Hospital Tanks and Quarantine\u003c\/h3\u003e\n\u003cp\u003eA separate hospital tank or treatment enclosure reduces unnecessary exposure of healthy animals and allows more accurate observation and treatment control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"usage\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eUsage Guidelines \u0026amp; Instructions\u003c\/h2\u003e\n\u003cdiv class=\"fph-directions-label\"\u003eDirections for Use:\u003c\/div\u003e\n\u003cdiv class=\"fph-steps\"\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e1\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eSet Up a Separate Treatment Area\u003c\/h3\u003e\n\u003cp\u003eMove affected fish to a dedicated hospital or quarantine tank.\u003c\/p\u003e\n\u003cp\u003eWhere practical, birds requiring treatment should be separated into an appropriate treatment enclosure under veterinary guidance.\u003c\/p\u003e\n\u003cp\u003eSeparation helps protect healthy tank mates or flock members and allows more accurate observation and treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e2\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eDirections for Fish Aquariums\u003c\/h3\u003e\n\u003cp\u003eDissolve one 250 mg tablet per 10 gallons or 38 litres of water in the hospital tank.\u003c\/p\u003e\n\u003cp\u003eMix the tablet in a clean cup of aquarium water first, then distribute the prepared solution evenly around the treatment tank.\u003c\/p\u003e\n\u003cp\u003eRepeat the treatment every 24 hours for 5 to 7 days while closely monitoring water quality and fish behavior.\u003c\/p\u003e\n\u003cp\u003eFollow the current bottle label or an aquatic veterinarian's instructions when they differ from this quick-reference information.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e3\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eUse in Pet Birds Under Veterinary Guidance\u003c\/h3\u003e\n\u003cp\u003eAdminister Fix Zithro to pigeons and other non-food pet birds only under the direction of an avian veterinarian.\u003c\/p\u003e\n\u003cp\u003eThe veterinarian should determine the correct amount for the bird's species, weight, condition, frequency, and treatment duration.\u003c\/p\u003e\n\u003cp\u003eTablets may be given whole, divided, or crushed and mixed with food or drinking water only as specifically instructed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e4\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eMaintain Water Quality \u0026amp; Finish Treatment\u003c\/h3\u003e\n\u003cp\u003ePerform partial water changes when needed between treatments to keep ammonia and nitrite low.\u003c\/p\u003e\n\u003cp\u003eMaintain strong aeration throughout treatment.\u003c\/p\u003e\n\u003cp\u003eContinue for the complete recommended duration, even if the animal appears better, unless a veterinarian advises otherwise.\u003c\/p\u003e\n\u003cp\u003eIf no improvement appears after several days, or symptoms worsen, consult an aquatic or avian professional.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eFix Zithro Amounts by Aquarium Size\u003c\/h3\u003e\n\u003cdiv class=\"fph-table-wrapper\"\u003e\n\u003ctable class=\"fph-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTank volume\u003c\/th\u003e\n\u003cth\u003eAzithromycin per use\u003c\/th\u003e\n\u003cth\u003e250 mg tablets\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 gallons (38 L)\u003c\/td\u003e\n\u003ctd\u003e250 mg\u003c\/td\u003e\n\u003ctd\u003e1 tablet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 gallons (76 L)\u003c\/td\u003e\n\u003ctd\u003e500 mg\u003c\/td\u003e\n\u003ctd\u003e2 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30 gallons (114 L)\u003c\/td\u003e\n\u003ctd\u003e750 mg\u003c\/td\u003e\n\u003ctd\u003e3 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40 gallons (151 L)\u003c\/td\u003e\n\u003ctd\u003e1,000 mg\u003c\/td\u003e\n\u003ctd\u003e4 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e55 gallons (208 L)\u003c\/td\u003e\n\u003ctd\u003eApproximately 1,375 mg\u003c\/td\u003e\n\u003ctd\u003e5 to 6 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eThese figures follow the supplied guideline of one 250 mg tablet per 10 gallons, approximately 25 mg per gallon. Dose according to the actual treatment-tank water volume, not the number of fish. The current bottle label or your aquatic veterinarian's directions take priority over this quick-reference chart.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eAmounts for Pet Birds\u003c\/h3\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003cp\u003eBird amounts are determined by body weight rather than aquarium-water volume, so there is no universal bird chart.\u003c\/p\u003e\n\u003cp\u003eThe appropriate amount depends on the species, body weight, condition being treated, administration method, and overall health of the bird.\u003c\/p\u003e\n\u003cp\u003eAn avian veterinarian must determine the amount, frequency, and duration.\u003c\/p\u003e\n\u003cp\u003eDo not estimate an avian amount independently or use the aquarium chart for birds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat to Expect During Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-timeline\"\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 1 to 2\u003c\/h3\u003e\n\u003cp\u003eFish may hide or eat less, and treatment water may look slightly cloudy. Maintain the treatment schedule and keep aeration strong.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 3 to 5\u003c\/h3\u003e\n\u003cp\u003eLook for fin damage or red patches that stop spreading, returning appetite, and steadier breathing. Seek professional guidance if the fish worsen or no improvement appears by day five.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 5 to 7\u003c\/h3\u003e\n\u003cp\u003eComplete the recommended treatment even when improvement appears. Afterward, perform a partial water change and restore activated carbon.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat You Need for Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003cp\u003ePrepare the following supplies before starting treatment:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA separate hospital or quarantine tank\u003c\/li\u003e\n\u003cli\u003eA heater suitable for the fish species\u003c\/li\u003e\n\u003cli\u003eAn air stone or established sponge filter\u003c\/li\u003e\n\u003cli\u003eAn ammonia and nitrite test kit\u003c\/li\u003e\n\u003cli\u003eA suitable aquarium dechlorinator\u003c\/li\u003e\n\u003cli\u003eA small net for careful transfer\u003c\/li\u003e\n\u003cli\u003eA clean cup for dissolving each tablet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-pro-tip\"\u003e\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Quarantine affected fish and birds away from healthy companions whenever practical. A dedicated treatment setup makes observation, water changes, and treatment control easier while reducing unnecessary exposure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"how-it-works\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eHow Fix Zithro Works\u003c\/h2\u003e\n\u003cp class=\"fph-lead\"\u003eAzithromycin is the active ingredient in Fix Zithro, supplied at 250 mg per tablet.\u003c\/p\u003e\n\u003cp\u003eIn practical terms, azithromycin helps slow or stop the growth of certain susceptible bacteria affecting the gills, skin, and respiratory tract of ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003cp\u003eThe remainder of each tablet consists of standard inactive ingredients that help hold the tablet together, maintain stability during storage, and allow the tablet to disperse when mixed with aquarium water.\u003c\/p\u003e\n\u003cp\u003eBird administration should follow the exact preparation and delivery method supplied by an avian veterinarian.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"safety\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eSafety and Tank Notes\u003c\/h2\u003e\n\u003cp\u003eWhen used as directed, Fix Zithro generally causes no problems in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003cp\u003eIncorrect amounts, unnecessarily prolonged use, or repeated antibacterial treatment can increase the risk of side effects and antibacterial resistance.\u003c\/p\u003e\n\u003cdiv class=\"fph-safety-grid\"\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eFish\u003c\/h3\u003e\n\u003cp\u003eAzithromycin-based aquarium treatment may cause temporary hiding, mild water cloudiness, reduced activity, or decreased appetite.\u003c\/p\u003e\n\u003cp\u003eIf severe distress appears, including rapid gill movement, loss of balance, surface gasping, or remaining on the bottom, stop treatment, improve aeration, perform an appropriate water change, and seek aquatic veterinary advice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eBirds\u003c\/h3\u003e\n\u003cp\u003ePossible reactions may include reduced appetite, loose or changed droppings, and lethargy, particularly when the amount is too high or the bird is sensitive.\u003c\/p\u003e\n\u003cp\u003eIf a bird becomes fluffed up, inactive, has difficulty breathing, or stops eating, discontinue treatment and contact an avian veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eInvertebrates\u003c\/h3\u003e\n\u003cp\u003eDo not use Fix Zithro in display aquariums containing shrimp, snails, corals, or other sensitive invertebrates whenever a separate treatment tank is available.\u003c\/p\u003e\n\u003cp\u003eStrong antibacterial treatments may harm sensitive species or disrupt the aquarium ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eSafe Use in Your System\u003c\/h3\u003e\n\u003cp\u003eTreat fish in a hospital or quarantine tank whenever possible.\u003c\/p\u003e\n\u003cp\u003eRemove activated carbon and switch off UV sterilization during treatment. Monitor ammonia, nitrite, oxygen, and temperature closely.\u003c\/p\u003e\n\u003cp\u003eDo not combine Fix Zithro with other antibacterial products unless specifically advised by a veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-warning\"\u003e\n\u003ch3\u003eImportant Safety Warning\u003c\/h3\u003e\n\u003cp\u003eFix Zithro is intended for ornamental aquarium fish and non-food pet birds only. It is not intended for animals raised for food.\u003c\/p\u003e\n\u003cp\u003eStore tablets in their original container in a cool, dry location protected from direct sunlight, excessive heat, and moisture.\u003c\/p\u003e\n\u003cp\u003eKeep the container tightly closed and out of reach of children and animals.\u003c\/p\u003e\n\u003cp\u003eAlways follow the directions printed on the current product label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"shipping\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cdiv class=\"fph-policy-grid\"\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eShipping Policy\u003c\/h3\u003e\n\u003cp\u003eOrders ship from our United States warehouse within one business day through USPS or UPS.\u003c\/p\u003e\n\u003cp\u003eSame-day dispatch may be available for qualifying orders placed before 1:30 p.m. CT, Monday through Friday.\u003c\/p\u003e\n\u003cp\u003eShipping rates and estimated delivery times are calculated at checkout.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/shipping-policy\"\u003eReview Shipping Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eRefund Policy\u003c\/h3\u003e\n\u003cp\u003eIf there is an issue with your order, eligible items may be returned or exchanged within 30 days according to the current store guidelines.\u003c\/p\u003e\n\u003cp\u003eReview the full refund policy before returning any item.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/refund-policy\"\u003eReview Refund Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"faq\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"fph-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is Fix Zithro used for in fish and birds?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zithro contains azithromycin and is used for certain bacterial concerns in ornamental aquarium fish. These may include fin and tail rot, columnaris, gill disease, red or cloudy body areas, and certain internal bacterial problems.\u003c\/p\u003e\n\u003cp\u003eIn non-food pet birds, it may form part of a veterinarian-directed plan for certain respiratory, Mycoplasma-related, or Chlamydia psittaci concerns.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between Bird Zithro and Fix Zithro?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zithro is the current Aqua Soma Labs product replacing discontinued Thomas Labs Bird Zithro and Fish Zithro products. It provides the familiar 250 mg azithromycin tablet strength in updated packaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Zithro a replacement for Aqua Zithro?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zithro is presented as the current Aqua Soma Labs replacement for older Aqua Zithro products and provides 250 mg of azithromycin per tablet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Zithro the same as Fish Zithro?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zithro is intended as the updated replacement for discontinued Fish Zithro products, with the same 250 mg azithromycin tablet strength and updated branding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhere can I buy azithromycin for fish online?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zithro 250 mg tablets can be ordered through this online store in 12-count or 30-count bottles and shipped according to the current store shipping policy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs azithromycin stronger than amoxicillin for fish?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAzithromycin and amoxicillin are different antibacterial ingredients with different activity profiles. One is not automatically better or stronger for every infection. The appropriate choice depends on the suspected organism and the condition being treated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I know if my fish might need azithromycin?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003ePossible bacterial signs include frayed fins, fuzzy or red body patches, cloudy areas, gill irritation, pop-eye, appetite loss, and reduced activity.\u003c\/p\u003e\n\u003cp\u003eSimilar signs may also be caused by parasites, fungal conditions, injuries, or poor water quality, so professional assessment is recommended when the cause is unclear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs azithromycin for birds the same as fish azithromycin?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zithro contains azithromycin, but bird administration is based on body weight, species, condition, and veterinary instructions. Aquarium calculations must not be used for birds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat size aquarium can one Fix Zithro tablet treat?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied aquarium guideline uses one 250 mg tablet per 10 gallons or approximately 38 litres of treatment water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs fish azithromycin available in 500 mg?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThis Fix Zithro product is supplied in a 250 mg tablet strength. A 500 mg treatment amount would require two 250 mg tablets according to the supplied aquarium chart.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long should I treat with Fix Zithro?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied directions describe one treatment every 24 hours for approximately 5 to 7 days. Always follow the current bottle label or veterinary instructions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow soon should I see improvement?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eImprovement may appear within three to five days through steadier breathing, returning appetite, improved activity, and bacterial lesions that stop spreading.\u003c\/p\u003e\n\u003cp\u003eSeek professional advice if the animal becomes worse or no improvement appears after several days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat should I do after finishing treatment?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFollow the product label, perform an appropriate partial water change, and restore activated carbon if normally used. Continue monitoring water quality and the condition of the treated fish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use Fix Zithro in my main community or reef tank?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eA separate hospital tank is preferred. This reduces unnecessary exposure of healthy fish and sensitive invertebrates and helps protect the display aquarium's biological filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes Fix Zithro work in saltwater aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zithro is presented for use in properly prepared freshwater and saltwater treatment tanks. A separate hospital tank is especially important for marine systems containing corals or invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Zithro be used for racing pigeons?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zithro may be considered for non-food pet birds, including racing pigeons, only under the direction of an avian veterinarian who determines the correct amount and duration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I combine Fix Zithro with other fish treatments?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDo not combine Fix Zithro with other antibacterial or aquarium treatments unless a qualified veterinarian specifically recommends the combination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Zithro treat fungal, viral, or parasitic infections?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Zithro is an antibacterial product. It should not be expected to treat fungal, viral, or parasitic conditions unless a professional has identified a separate appropriate reason for its use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Zithro safe for betta fish and small aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eSmall aquariums require careful volume calculations. The supplied guide is one 250 mg tablet per 10 gallons, so a smaller tank may require an accurately divided amount. Follow the bottle label or consult an aquatic veterinarian rather than estimating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow should I store and dispose of Fix Zithro tablets?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eStore tablets tightly closed in a cool, dry place protected from direct sunlight and moisture.\u003c\/p\u003e\n\u003cp\u003eFollow the current label and applicable local requirements when disposing of unused tablets, treatment water, or filter media. Avoid releasing concentrated treatment into natural waterways.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eMore Fish \u0026amp; Bird Treatments\u003c\/h2\u003e\n\u003cdiv class=\"fph-related-grid\"\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Mox (Amoxicillin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, dropsy, ulcers, and other bacterial concerns in ornamental fish. Available in 30-count and 100-count capsules.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-mox\"\u003eShop Fix Mox →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zole (Metronidazole) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eTargets certain anaerobic organisms and protozoa associated with Hexamita and hole-in-the-head concerns. Available in 60-count bottles.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zole\"\u003eShop Fix Zole →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Doxy (Doxycycline) 100 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for columnaris, respiratory concerns, and Mycoplasma-related problems in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-doxy\"\u003eShop Fix Doxy →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Cin (Clindamycin) 150 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for certain Gram-positive bacterial concerns, including skin and soft-tissue problems in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-cin\"\u003eShop Fix Cin →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Sulfa (SMZ\/TMP) 960 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment used for a range of bacterial concerns affecting ornamental aquarium fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-sulfa\"\u003eShop Fix Sulfa →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Pen (Penicillin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for certain Gram-positive bacterial concerns in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-pen\"\u003eShop Fix Pen →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flex (Cephalexin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, ulcers, and certain bacterial skin concerns in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flex\"\u003eShop Fix Flex →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flox (Ciprofloxacin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for certain Gram-negative bacterial concerns including fin rot, ulcers, columnaris, and septicemia.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flox\"\u003eShop Fix Flox →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-grid\"\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eBrowse All Treatments\u003c\/h3\u003e\n\u003cp\u003eExplore our complete Fish \u0026amp; Bird Antibacterial Collection for additional Fix line products and related treatments.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/collections\/fish-antibiotics\"\u003eExplore the Collection → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eGuides and Treatment Tips\u003c\/h3\u003e\n\u003cp\u003eVisit the Fish \u0026amp; Bird Antibacterial Care Blog for practical care guides, aquarium water advice, and treatment information.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/blogs\/fish-antibiotics\"\u003eVisit the Blog → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-image-note\"\u003eTap the product image above to expand and zoom 🔍\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003cdiv class=\"fph-verification\"\u003e\n\u003cdiv class=\"fph-verification-header\"\u003e\n\u003ch2\u003eTransparency \u0026amp; Verification\u003c\/h2\u003e\n\u003cp\u003eHow Product Information Is Verified\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eWho is responsible for this page:\u003c\/strong\u003e The store editorial team responsible for reviewing and maintaining product information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVerification snapshot:\u003c\/strong\u003e This page is written from the current product label for this item and reviewed for accuracy and consistency before publishing.\u003c\/p\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eHow We Verify Product Information\u003c\/h3\u003e\n\u003cdiv class=\"fph-verification-grid\"\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eLabel-First Accuracy\u003c\/h3\u003e\n\u003cp\u003eDirections, duration, storage information, and warnings are taken from the current product label for this item.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eSpecification Validation\u003c\/h3\u003e\n\u003cp\u003eKey details such as the active ingredient, tablet strength, and bottle counts are cross-checked against available manufacturer specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eConsistency Checks\u003c\/h3\u003e\n\u003cp\u003eProduct content is reviewed for consistent strengths, directions, safety information, and storage details throughout the page.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eUpdates\u003c\/h3\u003e\n\u003cp\u003ePages are updated when the product label, packaging, tablet count, manufacturer information, or directions change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eWhat we do not do:\u003c\/strong\u003e We do not invent product claims, and we do not add usage directions beyond what the current product label states for its intended use.\u003c\/div\u003e\n\u003cp style=\"margin-top: 25px;\"\u003eSee something that does not match the product you received? Please \u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.calvetsupply.com\/pages\/contact-us\" style=\"color: rgb(255, 128, 0);\"\u003econtact us\u003c\/a\u003e\u003ca class=\"fph-contact-link\" href=\"\/pages\/contact\" style=\"color: rgb(255, 128, 0);\"\u003e\u003c\/a\u003e \u003c\/strong\u003e\u003c\/span\u003eso the information can be reviewed and updated.\u003c\/p\u003e\n\u003cdiv class=\"fph-educational-note\"\u003e\n\u003cstrong\u003eEducational use:\u003c\/strong\u003e This content is provided for general informational purposes only and is not a substitute for advice from a qualified veterinarian.\u003c\/div\u003e\n\u003cdiv class=\"fph-reviewed\"\u003eLast reviewed: July 10, 2026\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Aqua Soma Labs","offers":[{"title":"250-mg (12 Count)","offer_id":45972964966434,"sku":"434609","price":29.99,"currency_code":"USD","in_stock":true},{"title":"250-mg (30 Count)","offer_id":45972964999202,"sku":"218533","price":95.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/7008\/3874\/files\/FishZithro.png?v=1783910721"},{"product_id":"fish-flex","title":"Fish Flex (Fix Flex) Cephalexin 250mg \u0026 500mg Fish Antibacterial","description":"\u003cstyle\u003e\n  .fph-product-copy {\n    --fph-orange: #e37111;\n    --fph-teal: #148d85;\n    --fph-green: #64ad82;\n    --fph-dark: #09213f;\n    --fph-text: #24374e;\n    --fph-muted: #64748b;\n    --fph-border: #dce3eb;\n    --fph-light: #f5f8fa;\n    --fph-teal-light: #eef8f6;\n    --fph-orange-light: #fff6ed;\n    --fph-white: #ffffff;\n\n    width: 100%;\n    max-width: 1675px;\n    margin: 0 auto;\n    padding-right: 40px;\n    padding-left: 40px;\n    color: var(--fph-text);\n    font-family: inherit;\n    font-size: 17px;\n    line-height: 1.7;\n  }\n\n  .fph-product-copy,\n  .fph-product-copy * {\n    box-sizing: border-box;\n  }\n\n  .fph-product-copy section {\n    scroll-margin-top: 120px;\n  }\n\n  .fph-product-copy p {\n    margin: 0 0 18px;\n  }\n\n  .fph-product-copy strong {\n    font-weight: 750;\n  }\n\n  .fph-product-title {\n    margin: 0 0 26px;\n    color: var(--fph-dark);\n    font-size: clamp(34px, 4vw, 52px);\n    font-weight: 800;\n    line-height: 1.12;\n    letter-spacing: -0.025em;\n  }\n\n  .fph-section-title {\n    margin: 0 0 22px;\n    color: var(--fph-dark);\n    font-size: clamp(29px, 3vw, 40px);\n    font-weight: 800;\n    line-height: 1.2;\n    letter-spacing: -0.02em;\n  }\n\n  .fph-subtitle {\n    margin: 32px 0 16px;\n    color: var(--fph-dark);\n    font-size: 23px;\n    font-weight: 750;\n    line-height: 1.35;\n  }\n\n  .fph-lead {\n    color: #30445d;\n    font-size: 19px;\n    line-height: 1.8;\n  }\n\n  .fph-section {\n    padding: 55px 0;\n    border-top: 1px solid 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var(--fph-white);\n    transform: translateY(-2px);\n  }\n\n  .fph-glance {\n    margin: 0 0 55px;\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 20px;\n    background: var(--fph-white);\n  }\n\n  .fph-glance-heading {\n    padding: 20px 24px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n    font-size: 23px;\n    font-weight: 800;\n  }\n\n  .fph-glance-row {\n    display: grid;\n    grid-template-columns: 40% 60%;\n    border-top: 1px solid var(--fph-border);\n  }\n\n  .fph-glance-label,\n  .fph-glance-value {\n    padding: 16px 19px;\n  }\n\n  .fph-glance-label {\n    background: #f3f5f7;\n    color: var(--fph-dark);\n    font-weight: 750;\n  }\n\n  .fph-glance-value {\n    background: #f9fafb;\n  }\n\n  .fph-two-column {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 22px;\n    margin-top: 28px;\n  }\n\n  .fph-info-box {\n    padding: 26px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-light);\n  }\n\n  .fph-info-box h3 {\n    margin: 0 0 14px;\n    color: var(--fph-dark);\n    font-size: 22px;\n    font-weight: 750;\n  }\n\n  .fph-info-box ul {\n    margin: 0;\n    padding-left: 21px;\n  }\n\n  .fph-info-box li {\n    margin: 8px 0;\n  }\n\n  .fph-highlight-note {\n    margin: 26px 0 0;\n    padding: 21px 23px;\n    border-left: 5px solid var(--fph-orange);\n    border-radius: 0 15px 15px 0;\n    background: var(--fph-orange-light);\n    color: #63310c;\n  }\n\n  .fph-order-note {\n    margin-top: 25px;\n    padding: 24px;\n    border: 1px solid #cde4de;\n    border-radius: 17px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-order-note p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-comparison-grid {\n    display: grid;\n    grid-template-columns: repeat(4, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 28px;\n  }\n\n  .fph-comparison-card {\n    padding: 25px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: linear-gradient(145deg, #eef8f6 0%, #ffffff 100%);\n  }\n\n  .fph-small-label {\n    display: block;\n    margin-bottom: 9px;\n    color: var(--fph-teal);\n    font-size: 12px;\n    font-weight: 800;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n  }\n\n  .fph-comparison-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-comparison-card p {\n    margin: 0;\n    color: var(--fph-muted);\n  }\n\n  .fph-benefits-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 28px;\n  }\n\n  .fph-benefit-card {\n    padding: 28px;\n    border: 1px solid var(--fph-border);\n    border-radius: 19px;\n    background: var(--fph-white);\n    box-shadow: 0 8px 28px rgba(15, 42, 70, 0.06);\n    transition: 0.3s ease;\n  }\n\n  .fph-benefit-card:hover {\n    transform: translateY(-5px);\n    box-shadow: 0 15px 38px rgba(15, 42, 70, 0.11);\n  }\n\n  .fph-benefit-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 45px;\n    height: 45px;\n    margin-bottom: 18px;\n    border-radius: 50%;\n    background: var(--fph-orange);\n    color: var(--fph-white);\n    font-size: 15px;\n    font-weight: 800;\n  }\n\n  .fph-benefit-card:nth-child(2n) .fph-benefit-number {\n    background: var(--fph-teal);\n  }\n\n  .fph-benefit-card:nth-child(3n) .fph-benefit-number {\n    background: var(--fph-green);\n  }\n\n  .fph-benefit-card h3 {\n    margin: 0 0 11px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-benefit-card p {\n    margin: 0;\n    color: var(--fph-muted);\n  }\n\n  .fph-directions-label {\n    margin: 0 0 22px;\n    color: var(--fph-teal);\n    font-size: 21px;\n    font-weight: 800;\n  }\n\n  .fph-steps {\n    display: grid;\n    gap: 18px;\n  }\n\n  .fph-step {\n    display: grid;\n    grid-template-columns: 62px minmax(0, 1fr);\n    gap: 18px;\n    padding: 25px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: #f1f9f7;\n  }\n\n  .fph-step-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 48px;\n    height: 48px;\n    border-radius: 50%;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-size: 19px;\n    font-weight: 800;\n  }\n\n  .fph-step h3 {\n    margin: 2px 0 9px;\n    color: var(--fph-dark);\n    font-size: 22px;\n    line-height: 1.35;\n  }\n\n  .fph-step p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-table-wrapper {\n    margin-top: 30px;\n    overflow-x: auto;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n  }\n\n  .fph-table {\n    width: 100%;\n    min-width: 720px;\n    border-collapse: collapse;\n    background: var(--fph-white);\n  }\n\n  .fph-table th,\n  .fph-table td {\n    padding: 16px 19px;\n    border-bottom: 1px solid var(--fph-border);\n    text-align: left;\n    vertical-align: top;\n  }\n\n  .fph-table th {\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-weight: 750;\n  }\n\n  .fph-table tr:nth-child(even) td {\n    background: #f7f9fa;\n  }\n\n  .fph-table tr:last-child td {\n    border-bottom: 0;\n  }\n\n  .fph-timeline {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 25px;\n  }\n\n  .fph-timeline-card {\n    padding: 25px;\n    border-radius: 18px;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n  }\n\n  .fph-timeline-card:nth-child(2) {\n    background: var(--fph-green);\n  }\n\n  .fph-timeline-card:nth-child(3) {\n    background: var(--fph-orange);\n  }\n\n  .fph-timeline-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-white);\n    font-size: 22px;\n  }\n\n  .fph-timeline-card p {\n    margin: 0;\n    color: var(--fph-white);\n  }\n\n  .fph-pro-tip {\n    margin-top: 22px;\n    padding: 22px 24px;\n    border-radius: 17px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-dark) 0%,\n      var(--fph-teal) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-pro-tip p {\n    margin: 0;\n    color: var(--fph-white);\n  }\n\n  .fph-safety-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 27px;\n  }\n\n  .fph-safety-card {\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n  }\n\n  .fph-safety-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-teal);\n    font-size: 22px;\n  }\n\n  .fph-safety-card p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-warning {\n    margin-top: 22px;\n    padding: 25px;\n    border: 1px solid #efc49c;\n    border-radius: 18px;\n    background: var(--fph-orange-light);\n  }\n\n  .fph-warning h3 {\n    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padding: 19px 58px 19px 21px;\n    color: var(--fph-dark);\n    font-weight: 750;\n    cursor: pointer;\n    list-style: none;\n  }\n\n  .fph-faq summary::-webkit-details-marker {\n    display: none;\n  }\n\n  .fph-faq summary::after {\n    content: \"+\";\n    position: absolute;\n    top: 50%;\n    right: 21px;\n    color: var(--fph-teal);\n    font-size: 27px;\n    line-height: 1;\n    transform: translateY(-50%);\n  }\n\n  .fph-faq details[open] summary::after {\n    content: \"−\";\n  }\n\n  .fph-faq details[open] summary {\n    background: var(--fph-teal-light);\n  }\n\n  .fph-faq-answer {\n    padding: 0 21px 20px;\n    color: var(--fph-muted);\n  }\n\n  .fph-faq-answer p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-related-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 27px;\n  }\n\n  .fph-related-card {\n    display: flex;\n    flex-direction: column;\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n    box-shadow: 0 7px 24px rgba(15, 42, 70, 0.05);\n  }\n\n  .fph-related-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-related-card p {\n    flex: 1;\n    color: var(--fph-muted);\n  }\n\n  .fph-related-card a {\n    margin-top: auto;\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-related-card a:hover {\n    text-decoration: underline;\n  }\n\n  .fph-browse-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 20px;\n  }\n\n  .fph-browse-card {\n    padding: 26px;\n    border-radius: 18px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card:nth-child(2) {\n    background: linear-gradient(\n      135deg,\n 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rgba(255, 255, 255, 0.88);\n  }\n\n  .fph-verification-body {\n    padding: 27px;\n  }\n\n  .fph-verification-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin: 24px 0;\n  }\n\n  .fph-verification-card {\n    padding: 23px;\n    border: 1px solid #cfe2df;\n    border-radius: 16px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-verification-card h3 {\n    margin: 0 0 9px;\n    color: var(--fph-teal);\n    font-size: 20px;\n  }\n\n  .fph-verification-card p {\n    margin: 0;\n  }\n\n  .fph-contact-link {\n    color: var(--fph-orange);\n    font-weight: 750;\n  }\n\n  .fph-educational-note {\n    margin-top: 24px;\n    padding: 20px 22px;\n    border-radius: 15px;\n    background: #eef3f7;\n    color: #42566d;\n    font-size: 15px;\n  }\n\n  .fph-reviewed {\n    margin-top: 18px;\n    color: var(--fph-muted);\n    font-size: 14px;\n  }\n\n  @media (max-width: 1050px) {\n    .fph-comparison-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n\n    .fph-benefits-grid,\n    .fph-related-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n  }\n\n  @media (max-width: 749px) {\n    .fph-product-copy {\n      padding-right: 18px;\n      padding-left: 18px;\n      font-size: 16px;\n      line-height: 1.65;\n    }\n\n    .fph-product-title {\n      font-size: 32px;\n    }\n\n    .fph-section {\n      padding: 39px 0;\n    }\n\n    .fph-section-title {\n      font-size: 28px;\n    }\n\n    .fph-toc-label {\n      display: none;\n    }\n\n    .fph-toc a {\n      min-height: 44px;\n      padding: 9px 17px;\n      font-size: 15px;\n    }\n\n    .fph-glance-row {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-glance-label {\n      padding-bottom: 7px;\n    }\n\n    .fph-glance-value {\n      padding-top: 7px;\n    }\n\n    .fph-two-column,\n    .fph-comparison-grid,\n    .fph-benefits-grid,\n    .fph-timeline,\n    .fph-safety-grid,\n    .fph-policy-grid,\n    .fph-related-grid,\n    .fph-browse-grid,\n    .fph-verification-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-step {\n      grid-template-columns: 48px minmax(0, 1fr);\n      gap: 14px;\n      padding: 20px;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"fph-product-copy\"\u003e\n\u003csection class=\"fph-section\" id=\"overview\"\u003e\n\u003ch1 class=\"fph-product-title\"\u003eFish Flex Forte (Fix Flex) Cephalexin Capsules - Fish \u0026amp; Bird Antibacterial Treatment 250 mg \/ 500 mg\u003c\/h1\u003e\n\u003cnav class=\"fph-toc\" aria-label=\"On this page\"\u003e\u003cspan class=\"fph-toc-label\"\u003eOn this page:\u003c\/span\u003e \u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e \u003ca href=\"#fish-flex-vs-fix-flex\"\u003eFish Flex vs Fix Flex\u003c\/a\u003e \u003ca href=\"#benefits\"\u003eBenefits\u003c\/a\u003e \u003ca href=\"#usage\"\u003eUsage\u003c\/a\u003e \u003ca href=\"#how-it-works\"\u003eHow It Works\u003c\/a\u003e \u003ca href=\"#safety\"\u003eSafety\u003c\/a\u003e \u003ca href=\"#shipping\"\u003eShipping\u003c\/a\u003e \u003ca href=\"#faq\"\u003eFAQ\u003c\/a\u003e\u003c\/nav\u003e\n\u003cdiv class=\"fph-glance\"\u003e\n\u003cdiv class=\"fph-glance-heading\"\u003eFix Flex at a Glance\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eFor\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eOrnamental aquarium fish and non-food pet birds\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eHelps with\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFin and tail rot, skin ulcers, infected wounds, red patches, and pop-eye\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eForm\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eCapsules, 250 mg or 500 mg each\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eCount sizes\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003e30-count and 100-count bottles\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eWater type\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFreshwater and saltwater\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eMade in\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eUnited States by Aqua Soma Labs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"fph-lead\"\u003e\u003cstrong\u003eFish Flex (Fix Flex)\u003c\/strong\u003e is an antibacterial treatment in capsule form for ornamental aquarium fish and non-food pet birds.\u003c\/p\u003e\n\u003cp\u003eMade by Aqua Soma Labs, it supplies cephalexin in 250 mg and 500 mg capsule strengths and is available in bottles containing 30 or 100 capsules with clearly printed expiration dates.\u003c\/p\u003e\n\u003cp\u003eOften called Fish Flex, Fin Flex, or simply fishflex in the aquarium community, this product is an online alternative to discontinued Thomas Labs Fish Flex, Fish Flex Forte, Fish Aid Cephalexin, Aqua Ceph 500 mg, Aqua Flex, and FISHBIOTIC Cephalexin products.\u003c\/p\u003e\n\u003cp\u003eAquarium keepers may also search for it as fish cephalexin, fish cephalexin 500 mg, or cephalexin for fish.\u003c\/p\u003e\n\u003cp\u003eIt is used to help manage common bacterial concerns such as fin and tail rot, skin ulcers, infected wounds and lesions, red patches, pop-eye, and dropsy or pinecone disease in freshwater and saltwater aquariums.\u003c\/p\u003e\n\u003cp\u003eUnder veterinary guidance, bird keepers may also use cephalexin as part of a treatment plan for bumblefoot, skin infections, or joint infections in pigeons and other non-food pet birds.\u003c\/p\u003e\n\u003cp\u003eThe capsules can be opened so the powder disperses quickly through aquarium water in a separate hospital or quarantine tank.\u003c\/p\u003e\n\u003cp\u003eThe availability of two strengths and two bottle sizes gives aquarium and bird keepers flexible options, whether maintaining one hospital tank, several community aquariums, or a veterinarian-directed aviary treatment plan.\u003c\/p\u003e\n\u003cp\u003eConsider treatment when early signs of bacterial stress appear, including ragged fins, red or pale fin edges, open sores, localized swelling, cloudy body patches, pop-eye, or persistent appetite loss.\u003c\/p\u003e\n\u003cdiv class=\"fph-two-column\"\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eFish-Specific Symptoms\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFin and tail rot with frayed or ragged fins\u003c\/li\u003e\n\u003cli\u003eSkin ulcers, open sores, and infected wounds\u003c\/li\u003e\n\u003cli\u003eRed or cloudy patches on the body\u003c\/li\u003e\n\u003cli\u003ePop-eye or exophthalmia\u003c\/li\u003e\n\u003cli\u003eDropsy or pinecone disease\u003c\/li\u003e\n\u003cli\u003eLocalized swelling\u003c\/li\u003e\n\u003cli\u003eAppetite loss or listless behavior\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eBird-Specific Symptoms Under Veterinary Guidance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBumblefoot or swollen foot pads\u003c\/li\u003e\n\u003cli\u003eSkin irritation, redness, or infection\u003c\/li\u003e\n\u003cli\u003eJoint infection or swelling\u003c\/li\u003e\n\u003cli\u003eRuffled or fluffed feathers\u003c\/li\u003e\n\u003cli\u003eReduced activity\u003c\/li\u003e\n\u003cli\u003ePersistent appetite loss\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 28px;\"\u003eAddressing possible bacterial problems early, together with suitable water quality, good housing, reduced stress, and advice from an aquatic or avian professional, helps maintain a stable aquarium or aviary.\u003c\/p\u003e\n\u003cp\u003eFix Flex is formulated, labeled, and sold exclusively as an antibacterial treatment for ornamental aquariums and non-food pet birds.\u003c\/p\u003e\n\u003cdiv class=\"fph-order-note\"\u003e\n\u003cp\u003e\u003cstrong\u003eOrder online for same-day dispatch\u003c\/strong\u003e on qualifying orders placed before 1:30 p.m. CT, Monday through Friday. Orders ship from our United States warehouse through USPS or UPS.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e This product is intended for aquarium and ornamental fish and non-food pet birds only. It is not for animals used for food.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"fish-flex-vs-fix-flex\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFish Flex vs Fix Flex: What Changed?\u003c\/h2\u003e\n\u003cp\u003eIf you previously purchased Thomas Labs Fish Flex, Fish Flex Forte, Aqua Ceph, Aqua Flex, or FISHBIOTIC Cephalexin, here is what has changed and what remains the same.\u003c\/p\u003e\n\u003cdiv class=\"fph-comparison-grid\"\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eActive ingredient\u003c\/span\u003e\n\u003ch3\u003eSame Cephalexin\u003c\/h3\u003e\n\u003cp\u003eFix Flex contains cephalexin in the same familiar 250 mg and 500 mg capsule strengths associated with older Fish Flex and Aqua Ceph products.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eManufacturer\u003c\/span\u003e\n\u003ch3\u003eNew Manufacturer\u003c\/h3\u003e\n\u003cp\u003eFix Flex is made in the United States by Aqua Soma Labs, replacing the discontinued Thomas Labs line.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eCapsule format\u003c\/span\u003e\n\u003ch3\u003eSame Capsule Form\u003c\/h3\u003e\n\u003cp\u003eThe capsules can be opened so the powder can be mixed into aquarium water or administered to birds exactly as directed by an avian veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eOptions\u003c\/span\u003e\n\u003ch3\u003eTwo Strengths and Two Bottle Sizes\u003c\/h3\u003e\n\u003cp\u003eChoose 250 mg or 500 mg capsules in 30-count or 100-count bottles according to the aquarium volume and treatment plan.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"benefits\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eBenefits of Fix Flex for Fish \u0026amp; Birds\u003c\/h2\u003e\n\u003cdiv class=\"fph-benefits-grid\"\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch3\u003eBacterial Support for Fish and Birds\u003c\/h3\u003e\n\u003cp\u003eFix Flex provides cephalexin for ornamental aquarium fish and non-food pet birds and may help manage fin and tail rot, skin ulcers, infected wounds, red patches, and other bacterial concerns when used as directed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch3\u003eMade in the United States\u003c\/h3\u003e\n\u003cp\u003eFix Flex is manufactured in the United States by Aqua Soma Labs, with clear strength labeling and expiration information on each bottle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch3\u003eTwo Strengths to Match Your Tank\u003c\/h3\u003e\n\u003cp\u003eChoose 250 mg capsules for smaller treatment systems or 500 mg capsules for larger water volumes while following the product label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch3\u003eConsistent Capsules\u003c\/h3\u003e\n\u003cp\u003eEach capsule provides a consistent amount of cephalexin, making aquarium-volume calculations easier across quarantine tanks and larger treatment systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e05\u003c\/div\u003e\n\u003ch3\u003eEasy to Prepare\u003c\/h3\u003e\n\u003cp\u003eCapsules can be opened and the powder mixed with aquarium water, helping distribute the treatment evenly while limiting unnecessary handling of stressed fish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e06\u003c\/div\u003e\n\u003ch3\u003eFreshwater, Saltwater \u0026amp; Aviary Setups\u003c\/h3\u003e\n\u003cp\u003eFix Flex may be used in properly prepared freshwater or marine hospital tanks and in veterinarian-directed treatment plans for pigeons and other ornamental birds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e07\u003c\/div\u003e\n\u003ch3\u003eGood for Hospital Tanks and Quarantine\u003c\/h3\u003e\n\u003cp\u003eA separate treatment system protects the main aquarium's biological filtration and reduces unnecessary exposure of healthy tank mates and sensitive invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"usage\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eUsage Guidelines \u0026amp; Instructions\u003c\/h2\u003e\n\u003cdiv class=\"fph-directions-label\"\u003eDirections for Use:\u003c\/div\u003e\n\u003cdiv class=\"fph-steps\"\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e1\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eSet Up a Separate Treatment Area\u003c\/h3\u003e\n\u003cp\u003eMove affected fish to a dedicated hospital or quarantine tank before treatment.\u003c\/p\u003e\n\u003cp\u003eWhere practical, birds receiving veterinarian-directed treatment should be separated into an appropriate treatment enclosure.\u003c\/p\u003e\n\u003cp\u003eSeparation helps protect healthy animals and allows more accurate treatment and observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e2\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eChoose the Right Strength\u003c\/h3\u003e\n\u003cp\u003eFix Flex is available in 250 mg and 500 mg capsule strengths.\u003c\/p\u003e\n\u003cp\u003eSelect the strength that matches the treatment-tank water volume or the instructions provided by a qualified professional.\u003c\/p\u003e\n\u003cp\u003eDo not increase the amount, shorten the interval, or extend treatment beyond the label directions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e3\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eDirections for Fish Aquariums\u003c\/h3\u003e\n\u003cp\u003eAdd one dissolved 250 mg dose per 10 gallons or approximately 38 litres of treatment water.\u003c\/p\u003e\n\u003cp\u003eOpen the capsule, stir the powder into a clean cup of aquarium water, and distribute the prepared solution evenly throughout the hospital tank.\u003c\/p\u003e\n\u003cp\u003eRepeat every 24 hours for 5 to 10 days, performing a partial water change between treatments.\u003c\/p\u003e\n\u003cp\u003eDiscontinue treatment and consult an aquatic veterinarian if no improvement is seen within five days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e4\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eUse in Pet Birds Under Veterinary Guidance\u003c\/h3\u003e\n\u003cp\u003eOnly administer cephalexin to pigeons and other non-food pet birds under the direction of an avian veterinarian.\u003c\/p\u003e\n\u003cp\u003eThe veterinarian should determine the correct amount according to the bird's species, weight, condition, frequency, and treatment duration.\u003c\/p\u003e\n\u003cp\u003eCapsule contents may be mixed with soft food or drinking water only as specifically instructed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e5\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eMaintain Water Quality \u0026amp; Complete Treatment\u003c\/h3\u003e\n\u003cp\u003ePerform partial water changes when needed between treatments to keep ammonia and nitrite low.\u003c\/p\u003e\n\u003cp\u003eMaintain stable temperature and strong aeration throughout the treatment period.\u003c\/p\u003e\n\u003cp\u003eComplete the full label-directed treatment unless a veterinarian advises otherwise.\u003c\/p\u003e\n\u003cp\u003eSeek professional guidance if symptoms become worse or fail to improve.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eFix Flex Amounts by Aquarium Size\u003c\/h3\u003e\n\u003cdiv class=\"fph-table-wrapper\"\u003e\n\u003ctable class=\"fph-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTank volume\u003c\/th\u003e\n\u003cth\u003eCephalexin per use\u003c\/th\u003e\n\u003cth\u003e250 mg capsules\u003c\/th\u003e\n\u003cth\u003e500 mg capsules\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 gallons (38 L)\u003c\/td\u003e\n\u003ctd\u003e250 mg\u003c\/td\u003e\n\u003ctd\u003e1 capsule\u003c\/td\u003e\n\u003ctd\u003eUse the 250 mg strength\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 gallons (76 L)\u003c\/td\u003e\n\u003ctd\u003e500 mg\u003c\/td\u003e\n\u003ctd\u003e2 capsules\u003c\/td\u003e\n\u003ctd\u003e1 capsule\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30 gallons (114 L)\u003c\/td\u003e\n\u003ctd\u003e750 mg\u003c\/td\u003e\n\u003ctd\u003e3 capsules\u003c\/td\u003e\n\u003ctd\u003e1 capsule plus one 250 mg capsule\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40 gallons (151 L)\u003c\/td\u003e\n\u003ctd\u003e1,000 mg\u003c\/td\u003e\n\u003ctd\u003e4 capsules\u003c\/td\u003e\n\u003ctd\u003e2 capsules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e55 gallons (208 L)\u003c\/td\u003e\n\u003ctd\u003eApproximately 1,375 mg\u003c\/td\u003e\n\u003ctd\u003e5 to 6 capsules\u003c\/td\u003e\n\u003ctd\u003eApproximately 3 capsules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eThese figures follow the supplied product-label guideline of one dissolved 250 mg dose per 10 gallons or 38 litres. Dose according to the actual water volume of the treatment tank, not the number of fish. The current bottle label or instructions from an aquatic veterinarian take priority over this quick-reference chart.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat to Expect During Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-timeline\"\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 1 to 2\u003c\/h3\u003e\n\u003cp\u003eFish may hide, eat less, or produce slightly cloudy treatment water. Maintain strong aeration and continue monitoring water quality.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 3 to 5\u003c\/h3\u003e\n\u003cp\u003eLook for sores and red patches that stop spreading, returning appetite, improved activity, and steadier breathing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 5 to 10\u003c\/h3\u003e\n\u003cp\u003eComplete the recommended treatment even when improvement appears. After treatment, perform a partial water change and restore activated carbon.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eDiscontinue treatment and consult an aquatic veterinarian if no improvement is seen within five days or if the fish become worse.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat You Need for Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003cp\u003ePrepare the following supplies before the first treatment:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA separate hospital or quarantine tank\u003c\/li\u003e\n\u003cli\u003eA suitable aquarium heater\u003c\/li\u003e\n\u003cli\u003eAn air stone or established sponge filter\u003c\/li\u003e\n\u003cli\u003eAn ammonia and nitrite test kit\u003c\/li\u003e\n\u003cli\u003eA suitable water conditioner or dechlorinator\u003c\/li\u003e\n\u003cli\u003eA small net for gentle fish transfer\u003c\/li\u003e\n\u003cli\u003eA clean cup for mixing each treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-pro-tip\"\u003e\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Quarantine affected fish and birds away from healthy companions whenever practical. A dedicated treatment setup with stable temperature, strong aeration, and no substrate makes observation and water changes easier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"how-it-works\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eHow Fix Flex Works\u003c\/h2\u003e\n\u003cp class=\"fph-lead\"\u003eFix Flex supplies cephalexin as the active ingredient at a strength of 250 mg or 500 mg per capsule.\u003c\/p\u003e\n\u003cp\u003eCephalexin works against a range of susceptible Gram-positive bacteria and some Gram-negative species that may affect the skin, fins, wounds, and soft tissues of ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003cp\u003eIn practical terms, it helps slow or stop the growth of susceptible bacteria so the animal has a better opportunity to recover when the underlying condition is bacterial.\u003c\/p\u003e\n\u003cp\u003eEach hard capsule contains cephalexin powder together with standard inactive ingredients that support capsule stability and help the contents disperse when mixed into aquarium water.\u003c\/p\u003e\n\u003cp\u003eAdministration to birds should follow the exact method and amount provided by an avian veterinarian.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"safety\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eSafety and Tank Notes\u003c\/h2\u003e\n\u003cp\u003eWhen used as directed, Fix Flex generally causes no problems in ornamental aquarium fish and non-food pet birds.\u003c\/p\u003e\n\u003cp\u003eIncorrect amounts, unnecessarily prolonged use, or repeated antibacterial treatment may increase the risk of unwanted reactions and bacterial resistance.\u003c\/p\u003e\n\u003cdiv class=\"fph-safety-grid\"\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eFish\u003c\/h3\u003e\n\u003cp\u003eCephalexin treatment may cause temporary hiding, mild treatment-water cloudiness, reduced activity, or appetite loss.\u003c\/p\u003e\n\u003cp\u003eIf severe distress appears, including rapid gill movement, surface gasping, loss of balance, or remaining on the bottom, stop treatment, improve aeration, perform an appropriate water change, and seek aquatic veterinary advice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eBirds\u003c\/h3\u003e\n\u003cp\u003ePossible reactions may include reduced appetite, loose or changed droppings, and lethargy, particularly when the amount is too high or the bird is sensitive.\u003c\/p\u003e\n\u003cp\u003eIf a bird becomes fluffed up, inactive, has difficulty breathing, or stops eating, discontinue treatment and contact an avian veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eInvertebrates\u003c\/h3\u003e\n\u003cp\u003eDo not use Fix Flex in display aquariums containing shrimp, snails, corals, or other sensitive invertebrates whenever a separate hospital tank is available.\u003c\/p\u003e\n\u003cp\u003eStrong antibacterial treatment may harm sensitive species or disrupt the aquarium ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eSafe Use in Your System\u003c\/h3\u003e\n\u003cp\u003eRemove activated carbon and switch off UV sterilization during treatment.\u003c\/p\u003e\n\u003cp\u003eMonitor ammonia, nitrite, temperature, and oxygen levels closely.\u003c\/p\u003e\n\u003cp\u003eDo not combine Fix Flex with other treatments unless specifically advised by a qualified veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-warning\"\u003e\n\u003ch3\u003eImportant Safety Warning\u003c\/h3\u003e\n\u003cp\u003eFix Flex is intended for ornamental aquarium fish and non-food pet birds only. It is not intended for animals raised for food.\u003c\/p\u003e\n\u003cp\u003eStore the capsules in their original container in a cool, dry location protected from direct sunlight, excessive heat, and moisture.\u003c\/p\u003e\n\u003cp\u003eKeep the container tightly closed and out of reach of children and animals.\u003c\/p\u003e\n\u003cp\u003eAlways follow the current product-label directions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"shipping\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cdiv class=\"fph-policy-grid\"\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eShipping Policy\u003c\/h3\u003e\n\u003cp\u003eOrders ship from our United States warehouse within one business day through USPS or UPS.\u003c\/p\u003e\n\u003cp\u003eSame-day dispatch may be available for qualifying orders placed before 1:30 p.m. CT, Monday through Friday.\u003c\/p\u003e\n\u003cp\u003eShipping prices and estimated delivery times are calculated at checkout.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/shipping-policy\"\u003eReview Shipping Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eRefund Policy\u003c\/h3\u003e\n\u003cp\u003eIf there is an issue with your order, eligible products may be returned or exchanged within 30 days according to the current store guidelines.\u003c\/p\u003e\n\u003cp\u003eReview the complete refund policy before returning any product.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/refund-policy\"\u003eReview Refund Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"faq\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"fph-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is Fix Flex used for in fish and birds?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flex contains cephalexin and is used for certain bacterial concerns affecting ornamental aquarium fish, including fin and tail rot, skin ulcers, infected wounds, red patches, pop-eye, and soft-tissue infections.\u003c\/p\u003e\n\u003cp\u003eIn non-food pet birds, use should occur only under avian veterinary guidance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between Fish Flex and Fix Flex?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flex is the current Aqua Soma Labs replacement for discontinued Fish Flex products. It provides cephalexin in familiar 250 mg and 500 mg capsule strengths with updated packaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Flex a replacement for Fish Flex Forte?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eYes. The 500 mg Fix Flex strength is presented as the replacement for older Fish Flex Forte 500 mg products.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Flex the same as Aqua Ceph or Aqua Flex?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flex is the updated Aqua Soma Labs cephalexin product replacing older Aqua Ceph and Aqua Flex names in familiar 250 mg and 500 mg strengths.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fish Flex the same as fish cephalexin 500 mg?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe Fix Flex 500 mg option contains 500 mg of cephalexin per capsule. A separate 250 mg strength is also available.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhere can I buy cephalexin for fish online?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flex 250 mg and 500 mg capsules can be ordered through this online store in 30-count or 100-count bottles and shipped according to the current store shipping policy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I know if my fish might need cephalexin?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003ePossible bacterial signs include frayed fins, ulcers, infected wounds, red or cloudy body areas, swelling, pop-eye, dropsy, appetite loss, and listless behavior.\u003c\/p\u003e\n\u003cp\u003eSimilar signs may also result from poor water quality, parasites, fungal conditions, injury, or other causes, so professional assessment is recommended when the diagnosis is uncertain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose between 250 mg and 500 mg capsules?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eSelect the strength according to the actual water volume of the treatment tank. The supplied guideline uses 250 mg per 10 gallons, meaning one 500 mg capsule corresponds to approximately 20 gallons.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use Fix Flex in my main community or reef tank?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eA separate hospital tank is preferred. This reduces exposure of healthy fish and sensitive invertebrates and helps protect the display aquarium's biological filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes Fix Flex work in saltwater aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flex is presented for use in properly prepared freshwater and saltwater treatment systems. A separate hospital tank is especially important for marine systems containing corals or invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long should I treat with Fix Flex?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied instructions describe treatment every 24 hours for 5 to 10 days, with partial water changes between treatments.\u003c\/p\u003e\n\u003cp\u003eDiscontinue treatment and seek professional advice if no improvement is seen within five days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Flex be used for pet birds?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flex may be considered for non-food pet birds only under avian veterinary guidance. The veterinarian must determine the amount, administration method, frequency, and duration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use Fix Flex for my dog or cat?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eNo. This product is labeled for ornamental aquarium fish and non-food pet birds. It is not intended for dogs, cats, humans, or food-producing animals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill Fix Flex harm beneficial aquarium bacteria?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAntibacterial treatments may disrupt beneficial biological filtration. Use a separate treatment tank whenever possible and monitor ammonia and nitrite closely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I combine Fix Flex with other fish treatments?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDo not combine Fix Flex with other antibacterial or aquarium treatments unless a qualified veterinarian specifically recommends the combination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow quickly should I see improvement?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eImprovement may appear within three to five days through sores that stop spreading, improved appetite, steadier breathing, and increased activity.\u003c\/p\u003e\n\u003cp\u003eStop and seek professional guidance if the animal worsens or no improvement appears by day five.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Flex treat fungal, viral, or parasitic infections?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flex is an antibacterial product. It should not be expected to treat fungal, viral, or parasitic conditions unless a professional has identified a separate appropriate reason for its use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow should I store and dispose of Fix Flex capsules?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eStore capsules tightly closed in their original container in a cool, dry place protected from sunlight and moisture.\u003c\/p\u003e\n\u003cp\u003eFollow the current label and applicable local requirements when disposing of unused capsules, treatment water, or filter media. Avoid releasing concentrated treatment into natural waterways.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is fish cephalexin?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFish cephalexin is a commonly used search term for cephalexin capsules labeled for ornamental aquarium fish. Fix Flex is offered in 250 mg and 500 mg capsule strengths.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow much Fix Flex should I use per gallon?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied label reference is 250 mg per 10 gallons, approximately 25 mg per gallon. Always follow the current bottle label and dose according to the actual treatment-tank water volume.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eMore Fish \u0026amp; Bird Treatments\u003c\/h2\u003e\n\u003cdiv class=\"fph-related-grid\"\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Mox (Amoxicillin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, dropsy, ulcers, and other bacterial concerns in ornamental fish. Available in 30-count and 100-count capsules.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-mox\"\u003eShop Fix Mox →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zole (Metronidazole) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eTargets certain anaerobic organisms and protozoa associated with Hexamita and hole-in-the-head concerns. Available in 60-count bottles.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zole\"\u003eShop Fix Zole →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Doxy (Doxycycline) 100 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for columnaris, respiratory concerns, and Mycoplasma-related problems in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-doxy\"\u003eShop Fix Doxy →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zithro (Azithromycin) 250 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, columnaris, gill disease, and veterinarian-directed avian respiratory concerns.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zithro\"\u003eShop Fix Zithro →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Cin (Clindamycin) 150 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for certain Gram-positive bacterial concerns, including skin and soft-tissue problems in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-cin\"\u003eShop Fix Cin →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Sulfa (SMZ\/TMP) 960 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment used for a range of bacterial concerns affecting ornamental aquarium fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-sulfa\"\u003eShop Fix Sulfa →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Pen (Penicillin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for certain Gram-positive bacterial concerns in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-pen\"\u003eShop Fix Pen →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flox (Ciprofloxacin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for certain Gram-negative bacterial concerns including fin rot, ulcers, columnaris, and septicemia.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flox\"\u003eShop Fix Flox →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-grid\"\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eBrowse All Treatments\u003c\/h3\u003e\n\u003cp\u003eExplore our complete Fish \u0026amp; Bird Treatments Collection for additional Fix line products and related care options.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/collections\/fish-antibiotics\"\u003eExplore the Collection → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eGuides and Care Tips\u003c\/h3\u003e\n\u003cp\u003eVisit the Fish \u0026amp; Bird Care Blog for practical guides, aquarium water-care information, and treatment tips.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/blogs\/fish-antibiotics\"\u003eVisit the Blog → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-image-note\"\u003eTap the product image above to expand and zoom 🔍\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003cdiv class=\"fph-verification\"\u003e\n\u003cdiv class=\"fph-verification-header\"\u003e\n\u003ch2\u003eTransparency \u0026amp; Verification\u003c\/h2\u003e\n\u003cp\u003eHow Product Information Is Verified\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eWho is responsible for this page:\u003c\/strong\u003e The store editorial team responsible for reviewing and maintaining product information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVerification snapshot:\u003c\/strong\u003e This page is written from the current product label for this item and reviewed for accuracy and consistency before publishing.\u003c\/p\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eHow We Verify Product Information\u003c\/h3\u003e\n\u003cdiv class=\"fph-verification-grid\"\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eLabel-First Accuracy\u003c\/h3\u003e\n\u003cp\u003eDirections, treatment duration, storage information, and warnings are taken from the current product label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eSpecification Validation\u003c\/h3\u003e\n\u003cp\u003eKey details such as the active ingredient, capsule strengths, bottle counts, and manufacturer information are cross-checked against available product specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eConsistency Checks\u003c\/h3\u003e\n\u003cp\u003eProduct content is reviewed for consistent strengths, directions, safety language, and storage details throughout the page.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eUpdates\u003c\/h3\u003e\n\u003cp\u003ePages are updated when product labels, packaging, capsule counts, manufacturer details, or directions change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eWhat we do not do:\u003c\/strong\u003e We do not invent product claims, and we do not add usage directions beyond what the current product label states for the intended use.\u003c\/div\u003e\n\u003cp style=\"margin-top: 25px;\"\u003eSee something that does not match the product you received? Please \u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003cstrong\u003e\u003ca href=\"%20https:\/\/www.calvetsupply.com\/pages\/contact-us\" style=\"color: rgb(255, 128, 0);\"\u003econtact us\u003c\/a\u003e\u003ca class=\"fph-contact-link\" href=\"\/pages\/contact\" style=\"color: rgb(255, 128, 0);\"\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e so the information can be reviewed and updated.\u003c\/p\u003e\n\u003cdiv class=\"fph-educational-note\"\u003e\n\u003cstrong\u003eEducational use:\u003c\/strong\u003e This content is provided for general informational purposes only and is not a substitute for advice from a qualified veterinarian.\u003c\/div\u003e\n\u003cdiv class=\"fph-reviewed\"\u003eLast reviewed: July 10, 2026\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Aqua Soma Labs","offers":[{"title":"250-mg (30 Count)","offer_id":45972965163042,"sku":"838002","price":18.95,"currency_code":"USD","in_stock":true},{"title":"250-mg (100 Count)","offer_id":45972965195810,"sku":"793279","price":59.99,"currency_code":"USD","in_stock":true},{"title":"500-mg (30 Count)","offer_id":45972965228578,"sku":"428813","price":37.99,"currency_code":"USD","in_stock":true},{"title":"500-mg (100 Count)","offer_id":45972965261346,"sku":"026789","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/7008\/3874\/files\/FishFlex.png?v=1783910950"},{"product_id":"fish-flox","title":"Fish Flox (Fix Flox) Ciprofloxacin 500mg Fish Antibacterial","description":"\u003cstyle\u003e\n  .fph-product-copy {\n    --fph-orange: #e37111;\n    --fph-teal: #148d85;\n    --fph-green: #64ad82;\n    --fph-dark: #09213f;\n    --fph-text: #24374e;\n    --fph-muted: #64748b;\n    --fph-border: #dce3eb;\n    --fph-light: #f5f8fa;\n    --fph-teal-light: #eef8f6;\n    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background: var(--fph-white);\n  }\n\n  .fph-verification-header {\n    padding: 25px;\n    background: var(--fph-dark);\n    color: var(--fph-white);\n  }\n\n  .fph-verification-header h2 {\n    margin: 0 0 7px;\n    color: var(--fph-white);\n    font-size: 29px;\n  }\n\n  .fph-verification-header p {\n    margin: 0;\n    color: rgba(255, 255, 255, 0.88);\n  }\n\n  .fph-verification-body {\n    padding: 27px;\n  }\n\n  .fph-verification-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin: 24px 0;\n  }\n\n  .fph-verification-card {\n    padding: 23px;\n    border: 1px solid #cfe2df;\n    border-radius: 16px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-verification-card h3 {\n    margin: 0 0 9px;\n    color: var(--fph-teal);\n    font-size: 20px;\n  }\n\n  .fph-verification-card p {\n    margin: 0;\n  }\n\n  .fph-contact-link {\n    color: var(--fph-orange);\n    font-weight: 750;\n  }\n\n  .fph-educational-note {\n    margin-top: 24px;\n    padding: 20px 22px;\n    border-radius: 15px;\n    background: #eef3f7;\n    color: #42566d;\n    font-size: 15px;\n  }\n\n  .fph-reviewed {\n    margin-top: 18px;\n    color: var(--fph-muted);\n    font-size: 14px;\n  }\n\n  @media (max-width: 1050px) {\n    .fph-comparison-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n\n    .fph-benefits-grid,\n    .fph-related-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n  }\n\n  @media (max-width: 749px) {\n    .fph-product-copy {\n      padding-right: 18px;\n      padding-left: 18px;\n      font-size: 16px;\n      line-height: 1.65;\n    }\n\n    .fph-product-title {\n      font-size: 32px;\n    }\n\n    .fph-section {\n      padding: 39px 0;\n    }\n\n    .fph-section-title {\n      font-size: 28px;\n    }\n\n    .fph-toc-label {\n      display: none;\n    }\n\n    .fph-toc a {\n      min-height: 44px;\n      padding: 9px 17px;\n      font-size: 15px;\n    }\n\n    .fph-glance-row {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-glance-label {\n      padding-bottom: 7px;\n    }\n\n    .fph-glance-value {\n      padding-top: 7px;\n    }\n\n    .fph-two-column,\n    .fph-comparison-grid,\n    .fph-benefits-grid,\n    .fph-timeline,\n    .fph-safety-grid,\n    .fph-policy-grid,\n    .fph-related-grid,\n    .fph-browse-grid,\n    .fph-verification-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-step {\n      grid-template-columns: 48px minmax(0, 1fr);\n      gap: 14px;\n      padding: 20px;\n    }\n  }\n\n  @media (prefers-reduced-motion: reduce) {\n    .fph-product-copy *,\n    .fph-product-copy *::before,\n    .fph-product-copy *::after {\n      transition: none !important;\n      animation: none !important;\n      scroll-behavior: auto !important;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"fph-product-copy\"\u003e\n\u003csection id=\"overview\" class=\"fph-section\"\u003e\n\u003ch1 class=\"fph-product-title\"\u003eFish Flox (Fix Flox) Ciprofloxacin Capsules - 500 mg\u003c\/h1\u003e\n\u003cnav aria-label=\"On this page\" class=\"fph-toc\"\u003e\u003cspan class=\"fph-toc-label\"\u003eOn this page:\u003c\/span\u003e \u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e \u003ca href=\"#fish-flox-vs-fix-flox\"\u003eFish Flox vs Fix Flox\u003c\/a\u003e \u003ca href=\"#benefits\"\u003eBenefits\u003c\/a\u003e \u003ca href=\"#usage\"\u003eUsage\u003c\/a\u003e \u003ca href=\"#how-it-works\"\u003eHow It Works\u003c\/a\u003e \u003ca href=\"#safety\"\u003eSafety\u003c\/a\u003e \u003ca href=\"#shipping\"\u003eShipping\u003c\/a\u003e \u003ca href=\"#faq\"\u003eFAQ\u003c\/a\u003e\u003c\/nav\u003e\n\u003cdiv class=\"fph-glance\"\u003e\n\u003cdiv class=\"fph-glance-heading\"\u003eFix Flox at a Glance\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eFor\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eOrnamental aquarium fish, plus non-food pet birds under veterinary guidance\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eHelps with\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFin and tail rot, ulcer-like sores, columnaris-type patches, red sores, and dropsy-like swelling\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eForm\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eCapsules, 500 mg each\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eCount sizes\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003e30-count and 60-count bottles\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eWater type\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFreshwater and saltwater\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eMade in\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eUnited States by Aqua Soma Labs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"fph-lead\"\u003e\u003cstrong\u003eFish Flox (Fix Flox)\u003c\/strong\u003e from Aqua Soma Labs is an antibacterial treatment for ornamental aquarium fish and non-food pet birds.\u003c\/p\u003e\n\u003cp\u003eEach capsule contains 500 mg of ciprofloxacin, which works in treatment water to help manage suspected bacterial problems such as persistent fin and tail rot, columnaris-type patches, and ulcer-like sores when used as directed.\u003c\/p\u003e\n\u003cp\u003eIn the aquarium community, it is still commonly called Fish Flox, Fish Flox Forte, Aqua Cipro, fish cipro, or fish ciprofloxacin 500 mg.\u003c\/p\u003e\n\u003cp\u003eFix Flox from the Aqua Soma Labs Fix range is the current online replacement for discontinued Thomas Labs Fish Flox and Aqua-Cipro 500 mg products.\u003c\/p\u003e\n\u003cp\u003eAquarium keepers who previously used Fish Flox Forte or Aqua Cipro will recognize the same 500 mg capsule strength under updated Fix-brand labeling.\u003c\/p\u003e\n\u003cp\u003eFix Flox may be used to help manage persistent fin and tail rot, columnaris-type patches, ulcer-like sores, red sores, hemorrhagic septicemia, bacterial swim bladder concerns, and dropsy-like swelling.\u003c\/p\u003e\n\u003cp\u003eThese concerns may involve susceptible organisms such as Aeromonas, Pseudomonas, Vibrio, or Flavobacterium.\u003c\/p\u003e\n\u003cp\u003eReef keepers may also use ciprofloxacin in a separate hospital tank for suspected bacterial problems affecting anemones, including repeated deflation or tissue deterioration.\u003c\/p\u003e\n\u003cp\u003eFix Flox is available in 30-count and 60-count bottles with clearly printed expiration dates.\u003c\/p\u003e\n\u003cp\u003eChoose the bottle size that fits your setup, whether maintaining one hospital tank, several community aquariums, or following an avian veterinarian's ciprofloxacin plan for a non-food pet bird.\u003c\/p\u003e\n\u003cp\u003eBegin treatment when early signs of bacterial stress appear. Signs can differ between fish and birds, so the lists below separate the symptoms by species.\u003c\/p\u003e\n\u003cdiv class=\"fph-two-column\"\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eFish-Specific Symptoms\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFin and tail rot with frayed or deteriorating fins\u003c\/li\u003e\n\u003cli\u003eUlcer-like sores or open wounds\u003c\/li\u003e\n\u003cli\u003eRed sores or red streaking on the body\u003c\/li\u003e\n\u003cli\u003eDropsy-like swelling\u003c\/li\u003e\n\u003cli\u003eColumnaris-type patches\u003c\/li\u003e\n\u003cli\u003eCloudy body patches that remain after water quality improves\u003c\/li\u003e\n\u003cli\u003eLethargy, appetite loss, or a rapid decline in activity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eBird Signs Under Veterinary Guidance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFluffed-up feathers\u003c\/li\u003e\n\u003cli\u003eLethargy or reduced activity\u003c\/li\u003e\n\u003cli\u003eDecreased appetite\u003c\/li\u003e\n\u003cli\u003eLoose or changed droppings\u003c\/li\u003e\n\u003cli\u003eLabored or difficult breathing\u003c\/li\u003e\n\u003cli\u003eAny sudden change linked by a veterinarian to a bacterial problem\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 28px;\"\u003eFor birds, only use Fix Flox when an avian veterinarian has recommended ciprofloxacin for a specific condition and has established the appropriate amount, frequency, and duration.\u003c\/p\u003e\n\u003cp\u003eAddressing a suspected bacterial problem early, together with stable water quality, good aeration, appropriate nutrition, and suitable housing, gives fish and birds a better opportunity to recover.\u003c\/p\u003e\n\u003cdiv class=\"fph-order-note\"\u003e\n\u003cp\u003e\u003cstrong\u003eSame-day dispatch:\u003c\/strong\u003e Qualifying orders placed before 1:30 p.m. CT, Monday through Friday, ship from our United States warehouse through USPS or UPS.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e This product is intended for aquarium and ornamental fish and non-food pet birds only. It is not for animals used for food.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"fish-flox-vs-fix-flox\" class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFish Flox vs Fix Flox: What Changed?\u003c\/h2\u003e\n\u003cp\u003eIf you previously purchased Thomas Labs Fish Flox, Fish Flox Forte, or Aqua Cipro, here is what changed and what stayed the same.\u003c\/p\u003e\n\u003cdiv class=\"fph-comparison-grid\"\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eActive ingredient\u003c\/span\u003e\n\u003ch3\u003eSame Ciprofloxacin Strength\u003c\/h3\u003e\n\u003cp\u003eFix Flox contains the same 500 mg of ciprofloxacin per capsule associated with Fish Flox Forte and Aqua Cipro.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eManufacturer\u003c\/span\u003e\n\u003ch3\u003eNew Manufacturer\u003c\/h3\u003e\n\u003cp\u003eFix Flox is made in the United States by Aqua Soma Labs, replacing the discontinued Thomas Labs product line.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eCapsule format\u003c\/span\u003e\n\u003ch3\u003eSame Capsule Form\u003c\/h3\u003e\n\u003cp\u003eThe capsule can be opened and the powder dissolved in aquarium water, matching the format used by previous Fish Flox products.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eBottle sizes\u003c\/span\u003e\n\u003ch3\u003e30-Count and 60-Count Options\u003c\/h3\u003e\n\u003cp\u003eChoose a 30-count bottle for a smaller setup or occasional use, or a 60-count bottle for larger aquarium collections and longer treatment plans.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"benefits\" class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eBenefits of Fix Flox for Fish \u0026amp; Birds\u003c\/h2\u003e\n\u003cdiv class=\"fph-benefits-grid\"\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch3\u003eWide Bacterial Coverage\u003c\/h3\u003e\n\u003cp\u003eCiprofloxacin is generally described as active against many Gram-negative bacteria and certain Gram-positive organisms affecting ornamental fish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch3\u003eMade in the United States\u003c\/h3\u003e\n\u003cp\u003eFix Flox is manufactured in the United States by Aqua Soma Labs and supplied with clearly printed capsule strength and expiration information.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch3\u003eHelps Manage Stubborn Aquarium Problems\u003c\/h3\u003e\n\u003cp\u003eAquarium keepers may choose Fix Flox for persistent fin rot, columnaris-type patches, bacterial gill irritation, ulcer-like sores, red streaking, septicemia, or bacterial dropsy-like swelling.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch3\u003eConsistent 500 mg Capsules\u003c\/h3\u003e\n\u003cp\u003eEach capsule contains a fixed 500 mg amount, making aquarium-volume calculations straightforward in a properly prepared hospital tank.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e05\u003c\/div\u003e\n\u003ch3\u003eEasy to Prepare\u003c\/h3\u003e\n\u003cp\u003eOpen the capsule, mix the powder in a clean cup of aquarium water, and distribute the prepared treatment evenly throughout the hospital tank.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e06\u003c\/div\u003e\n\u003ch3\u003eFreshwater, Saltwater \u0026amp; Avian Use\u003c\/h3\u003e\n\u003cp\u003eFix Flox may be used in properly prepared freshwater or marine treatment tanks. Bird use must occur only under avian veterinary supervision.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e07\u003c\/div\u003e\n\u003ch3\u003eIdeal for Hospital Tanks and Quarantine\u003c\/h3\u003e\n\u003cp\u003eA separate treatment tank helps protect healthy tank mates, sensitive invertebrates, and the main aquarium's established biological filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"usage\" class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eUsage Guidelines \u0026amp; Instructions\u003c\/h2\u003e\n\u003cdiv class=\"fph-directions-label\"\u003eDirections for Use:\u003c\/div\u003e\n\u003cp\u003eAlways follow the directions printed on the current bottle. The steps below describe the usual aquarium-water method for ornamental fish.\u003c\/p\u003e\n\u003cdiv class=\"fph-steps\"\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e1\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eSet Up a Separate Treatment Area\u003c\/h3\u003e\n\u003cp\u003eMove affected fish to a dedicated hospital or quarantine tank whenever possible.\u003c\/p\u003e\n\u003cp\u003eA separate system makes treatment and observation easier and protects healthy tank mates and the main aquarium's biological filter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e2\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003ePrepare and Add the Treatment\u003c\/h3\u003e\n\u003cp\u003eOpen the capsule and dissolve the powder in a clean cup of aquarium water.\u003c\/p\u003e\n\u003cp\u003eDistribute the prepared mixture evenly throughout the treatment tank.\u003c\/p\u003e\n\u003cp\u003eUse one 500 mg capsule per 10 gallons or approximately 38 litres of treatment water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e3\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eRepeat and Maintain Water Quality\u003c\/h3\u003e\n\u003cp\u003eRepeat the treatment every 24 hours.\u003c\/p\u003e\n\u003cp\u003ePerform a partial water change between treatments to keep ammonia and nitrite low.\u003c\/p\u003e\n\u003cp\u003eMaintain stable temperature and strong aeration throughout the treatment period.\u003c\/p\u003e\n\u003cp\u003eContinue once daily for 5 to 10 days according to the current label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e4\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eUse in Pet Birds Under Veterinary Guidance\u003c\/h3\u003e\n\u003cp\u003eAdminister Fix Flox to non-food pet birds only under the direction of an avian veterinarian.\u003c\/p\u003e\n\u003cp\u003eDo not use aquarium-water calculations to determine a bird's amount.\u003c\/p\u003e\n\u003cp\u003eThe veterinarian must establish the appropriate amount according to the bird's species, weight, condition, frequency, and treatment duration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e5\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eComplete the Full Treatment\u003c\/h3\u003e\n\u003cp\u003eComplete the recommended treatment period even when the fish begin to improve, unless a veterinarian advises otherwise.\u003c\/p\u003e\n\u003cp\u003eStopping too early may allow the bacterial problem to return.\u003c\/p\u003e\n\u003cp\u003eIf no improvement is seen after five days, discontinue treatment as directed on the label and consult an aquatic professional.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eFix Flox Amounts by Aquarium Size\u003c\/h3\u003e\n\u003cdiv class=\"fph-table-wrapper\"\u003e\n\u003ctable class=\"fph-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTank volume\u003c\/th\u003e\n\u003cth\u003eCiprofloxacin per use\u003c\/th\u003e\n\u003cth\u003e500 mg capsules\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 gallons (38 L)\u003c\/td\u003e\n\u003ctd\u003e500 mg\u003c\/td\u003e\n\u003ctd\u003e1 capsule\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 gallons (76 L)\u003c\/td\u003e\n\u003ctd\u003e1,000 mg\u003c\/td\u003e\n\u003ctd\u003e2 capsules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30 gallons (114 L)\u003c\/td\u003e\n\u003ctd\u003e1,500 mg\u003c\/td\u003e\n\u003ctd\u003e3 capsules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40 gallons (151 L)\u003c\/td\u003e\n\u003ctd\u003e2,000 mg\u003c\/td\u003e\n\u003ctd\u003e4 capsules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e55 gallons (208 L)\u003c\/td\u003e\n\u003ctd\u003eApproximately 2,750 mg\u003c\/td\u003e\n\u003ctd\u003e5 to 6 capsules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eThese figures follow the supplied label guideline of one 500 mg capsule per 10 gallons, approximately 50 mg per gallon. Dose according to the actual water volume of the treatment tank, not the number of fish. The current bottle label or your aquatic veterinarian's instructions take priority over this quick-reference chart.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat to Expect During Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-timeline\"\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 1 to 2\u003c\/h3\u003e\n\u003cp\u003eFish may hide or eat less, and the treatment water may look slightly cloudy. Maintain the treatment schedule and keep aeration strong.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 3 to 5\u003c\/h3\u003e\n\u003cp\u003eLook for sores and red patches that stop spreading, returning appetite, improved activity, and steadier breathing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 5 to 10\u003c\/h3\u003e\n\u003cp\u003eComplete the recommended treatment period. Afterward, perform a partial water change and restore activated carbon if normally used.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eIf no improvement is seen by day five, or if the fish become worse, stop treatment and seek aquatic veterinary guidance.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat You Need for Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003cp\u003ePrepare these supplies before administering the first treatment:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA separate hospital or quarantine tank\u003c\/li\u003e\n\u003cli\u003eA suitable aquarium heater\u003c\/li\u003e\n\u003cli\u003eAn air stone or established sponge filter\u003c\/li\u003e\n\u003cli\u003eAn ammonia and nitrite test kit\u003c\/li\u003e\n\u003cli\u003eA suitable water conditioner or dechlorinator\u003c\/li\u003e\n\u003cli\u003eA small net for gentle fish transfer\u003c\/li\u003e\n\u003cli\u003eA clean cup for mixing the capsule contents\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-pro-tip\"\u003e\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Quarantine affected fish away from healthy tank mates. A small hospital tank with stable heat, strong aeration, and no substrate makes treatment and water changes easier. Remove activated carbon and switch off UV sterilization during treatment because both may reduce treatment availability in the water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"how-it-works\" class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eHow Fix Flox Works\u003c\/h2\u003e\n\u003cp class=\"fph-lead\"\u003eEach Fix Flox capsule contains 500 mg of ciprofloxacin.\u003c\/p\u003e\n\u003cp\u003eCiprofloxacin works by slowing or stopping the growth of certain susceptible bacteria when used as directed in treatment water for ornamental aquarium fish.\u003c\/p\u003e\n\u003cp\u003eThis may give affected fish a better opportunity to recover when the underlying condition is bacterial and susceptible to ciprofloxacin.\u003c\/p\u003e\n\u003cp\u003eFor non-food pet birds, ciprofloxacin should only be used under the direct guidance of an avian veterinarian.\u003c\/p\u003e\n\u003cp\u003eThe remainder of each capsule consists of the capsule shell and standard inactive ingredients that help keep the contents stable during storage and allow the powder to disperse when mixed with aquarium water.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection id=\"safety\" class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eSafety and Tank Notes\u003c\/h2\u003e\n\u003cp\u003eWhen used as directed, Fix Flox usually causes no problems in ornamental aquarium fish and non-food pet birds.\u003c\/p\u003e\n\u003cp\u003eIncorrect amounts, unnecessarily prolonged use, or repeated antibacterial treatment may increase the risk of side effects and bacterial resistance.\u003c\/p\u003e\n\u003cdiv class=\"fph-safety-grid\"\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eFish\u003c\/h3\u003e\n\u003cp\u003eSome fish may temporarily hide, eat less, appear mildly lethargic, or produce slightly cloudy treatment water.\u003c\/p\u003e\n\u003cp\u003eIf severe distress appears, including rapid gill movement, loss of balance, surface gasping, or remaining on the bottom, stop treatment, improve aeration, perform an appropriate water change, and seek aquatic veterinary advice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eBirds\u003c\/h3\u003e\n\u003cp\u003eAdminister Fix Flox to birds only under avian veterinary direction.\u003c\/p\u003e\n\u003cp\u003ePossible reactions may include reduced appetite, lethargy, or loose or changed droppings, especially when the amount is inappropriate or the bird is sensitive.\u003c\/p\u003e\n\u003cp\u003eIf the bird becomes fluffed up, inactive, has difficulty breathing, or stops eating, discontinue use and contact an avian veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eInvertebrates\u003c\/h3\u003e\n\u003cp\u003eDo not use Fix Flox in display tanks containing shrimp, snails, corals, or other sensitive invertebrates whenever a separate hospital tank is available.\u003c\/p\u003e\n\u003cp\u003eStrong antibacterial treatment may harm sensitive species or disrupt the aquarium ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eSafe Use in Your System\u003c\/h3\u003e\n\u003cp\u003eTreat fish in a hospital or quarantine tank whenever possible.\u003c\/p\u003e\n\u003cp\u003eRemove activated carbon and switch off UV sterilization during treatment.\u003c\/p\u003e\n\u003cp\u003eMonitor ammonia, nitrite, temperature, and oxygen levels closely.\u003c\/p\u003e\n\u003cp\u003eDo not combine Fix Flox with other treatments unless specifically advised by a qualified veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-warning\"\u003e\n\u003ch3\u003eImportant Safety Warning\u003c\/h3\u003e\n\u003cp\u003eFix Flox is intended for ornamental aquarium fish and non-food pet birds only. It is not intended for animals raised for food.\u003c\/p\u003e\n\u003cp\u003eStore the capsules in their original container in a cool, dry location protected from direct sunlight, excessive heat, and moisture.\u003c\/p\u003e\n\u003cp\u003eKeep the container tightly closed and out of reach of children and animals.\u003c\/p\u003e\n\u003cp\u003eAlways follow the directions printed on the current product label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"shipping\" class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cdiv class=\"fph-policy-grid\"\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eShipping Policy\u003c\/h3\u003e\n\u003cp\u003eOrders ship from our United States warehouse within one business day through USPS or UPS.\u003c\/p\u003e\n\u003cp\u003eQualifying orders placed before 1:30 p.m. CT, Monday through Friday, may ship the same business day.\u003c\/p\u003e\n\u003cp\u003eShipping rates and estimated delivery times are calculated at checkout.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/shipping-policy\"\u003eReview Shipping Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eRefund Policy\u003c\/h3\u003e\n\u003cp\u003eIf there is an issue with your order, eligible products may be returned or exchanged within 30 days according to the current store guidelines.\u003c\/p\u003e\n\u003cp\u003eReview the complete refund policy before returning any product.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/refund-policy\"\u003eReview Refund Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"faq\" class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"fph-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is Fix Flox used for in fish and birds?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flox contains ciprofloxacin and is used for certain suspected bacterial problems in ornamental aquarium fish, including persistent fin rot, columnaris-type patches, ulcer-like sores, red streaking, septicemia, and bacterial dropsy-like swelling.\u003c\/p\u003e\n\u003cp\u003eUse in non-food pet birds should occur only under avian veterinary guidance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between Fish Flox and Fix Flox?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flox is the current Aqua Soma Labs replacement for discontinued Thomas Labs Fish Flox products. It provides the familiar 500 mg ciprofloxacin capsule strength with updated packaging and labeling.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Flox a replacement for Aqua Cipro?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flox is presented as the updated Aqua Soma Labs ciprofloxacin product replacing older Aqua Cipro and Aqua-Cipro 500 mg products.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Flox the same as Fish Flox Forte?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flox contains the same familiar 500 mg ciprofloxacin capsule strength associated with Fish Flox Forte.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is inside Fix Flox?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eEach Fix Flox capsule contains 500 mg of ciprofloxacin together with standard inactive ingredients and the capsule shell.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs fish cipro the same as Fix Flox?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFish cipro is a common search term for ciprofloxacin capsules labeled for ornamental aquarium fish. Fix Flox supplies ciprofloxacin in a 500 mg capsule.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhere can I buy ciprofloxacin for fish online?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flox 500 mg capsules can be ordered through this online store in 30-count or 60-count bottles and shipped according to the current store shipping policy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I know if my fish might need ciprofloxacin?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003ePossible bacterial signs include persistent fin deterioration, ulcer-like sores, red patches, open wounds, columnaris-type areas, swelling, appetite loss, or rapid decline in activity.\u003c\/p\u003e\n\u003cp\u003eSimilar signs may result from poor water quality, parasites, fungal conditions, injury, or other causes. Seek professional assessment when the diagnosis is uncertain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat size aquarium can one Fix Flox capsule treat?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied aquarium guideline uses one 500 mg capsule per 10 gallons or approximately 38 litres of treatment water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use Fix Flox in my main community or reef tank?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eA separate hospital or quarantine tank is strongly preferred. This protects healthy fish, invertebrates, corals, and the main aquarium's established biological filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes Fix Flox work in saltwater aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flox is presented for properly prepared freshwater and saltwater treatment tanks. A separate hospital system is especially important for marine aquariums containing corals or invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long should I treat with Fix Flox?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied directions describe treatment every 24 hours for 5 to 10 days, with partial water changes between treatments.\u003c\/p\u003e\n\u003cp\u003eDiscontinue treatment and seek professional advice if no improvement is seen after five days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow soon should I see improvement?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eImprovement may become visible within three to five days through sores that stop spreading, returning appetite, steadier breathing, and increased activity.\u003c\/p\u003e\n\u003cp\u003eStop treatment and seek professional advice if the animal worsens or no improvement appears by day five.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Flox safe for pet birds?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flox may be considered for non-food pet birds only under direct avian veterinary guidance. The veterinarian must determine the amount, administration method, frequency, and duration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat bacteria does ciprofloxacin target in fish?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eCiprofloxacin is generally associated with activity against many Gram-negative bacteria and certain Gram-positive organisms. Aquarium concerns may involve susceptible Aeromonas, Pseudomonas, Vibrio, or Flavobacterium species.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill Fix Flox harm beneficial aquarium bacteria?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAntibacterial treatment may disrupt beneficial biological filtration. Use a separate hospital tank whenever possible and monitor ammonia and nitrite closely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eShould I remove carbon or turn off UV during treatment?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eRemove activated carbon and switch off UV sterilization during treatment because these systems may reduce the amount of treatment available in the water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I combine Fix Flox with other fish treatments?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDo not combine Fix Flox with other antibacterial or aquarium treatments unless a qualified veterinarian specifically recommends the combination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Flox treat fungal, viral, or parasitic infections?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flox is an antibacterial product. It should not be expected to treat fungal, viral, or parasitic conditions unless a professional has identified a separate appropriate reason for its use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow should I store and dispose of Fix Flox capsules?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eStore capsules tightly closed in their original container in a cool, dry location protected from direct sunlight, excessive heat, and moisture.\u003c\/p\u003e\n\u003cp\u003eFollow the current product label and applicable local requirements when disposing of unused capsules, treatment water, or filter media. Avoid releasing concentrated treatment into natural waterways.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eMore Fish \u0026amp; Bird Treatments\u003c\/h2\u003e\n\u003cdiv class=\"fph-related-grid\"\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Mox (Amoxicillin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, dropsy, ulcers, and other bacterial concerns in ornamental fish. Available in 30-count and 100-count capsules.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-mox\"\u003eShop Fix Mox Amoxicillin → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zole (Metronidazole) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eTargets certain anaerobic organisms and protozoa associated with Hexamita and hole-in-the-head concerns. Available in 60-count bottles.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zole\"\u003eShop Fix Zole Metronidazole → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Doxy (Doxycycline) 100 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for columnaris, respiratory concerns, and Mycoplasma-related problems in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-doxy\"\u003eShop Fix Doxy Doxycycline → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zithro (Azithromycin) 250 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, columnaris, gill disease, and veterinarian-directed avian respiratory concerns.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zithro\"\u003eShop Fix Zithro Azithromycin → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Cin (Clindamycin) 150 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for certain Gram-positive bacterial concerns, including skin and soft-tissue problems in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-cin\"\u003eShop Fix Cin Clindamycin → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Sulfa (SMZ\/TMP) 960 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment used for a range of bacterial concerns affecting ornamental aquarium fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-sulfa\"\u003eShop Fix Sulfa SMZ\/TMP → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Pen (Penicillin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for certain Gram-positive bacterial concerns in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-pen\"\u003eShop Fix Pen Penicillin → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flex (Cephalexin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, ulcers, infected wounds, and certain bacterial skin concerns in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flex\"\u003eShop Fix Flex Cephalexin → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-grid\"\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eBrowse All Treatments\u003c\/h3\u003e\n\u003cp\u003eExplore our complete Fish \u0026amp; Bird Treatments Collection for additional Fix line products and related care options.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/collections\/fish-antibiotics\"\u003eExplore the Collection → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eGuides and Treatment Tips\u003c\/h3\u003e\n\u003cp\u003eVisit the Fish \u0026amp; Bird Treatments Blog for practical care guides, aquarium water-care information, and treatment tips.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/blogs\/fish-antibiotics\"\u003eVisit the Blog → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-image-note\"\u003eTap the product image above to expand and zoom 🔍\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003cdiv class=\"fph-verification\"\u003e\n\u003cdiv class=\"fph-verification-header\"\u003e\n\u003ch2\u003eTransparency \u0026amp; Verification\u003c\/h2\u003e\n\u003cp\u003eHow Product Information Is Verified\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eWho is responsible for this page:\u003c\/strong\u003e The store editorial team responsible for reviewing and maintaining product information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVerification snapshot:\u003c\/strong\u003e This page is written from the current product label for this item and reviewed for accuracy and consistency before publishing.\u003c\/p\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eHow We Verify Product Information\u003c\/h3\u003e\n\u003cdiv class=\"fph-verification-grid\"\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eLabel-First Accuracy\u003c\/h3\u003e\n\u003cp\u003eDirections, treatment duration, storage information, and warnings are taken from the current product label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eSpecification Validation\u003c\/h3\u003e\n\u003cp\u003eKey details such as the active ingredient, capsule strength, bottle counts, and manufacturer information are cross-checked against available product specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eConsistency Checks\u003c\/h3\u003e\n\u003cp\u003eProduct content is reviewed for consistent strength, directions, safety information, and storage details throughout the page.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eUpdates\u003c\/h3\u003e\n\u003cp\u003ePages are updated when product labels, packaging, bottle counts, manufacturer information, or directions change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eWhat we do not do:\u003c\/strong\u003e We do not invent product claims, and we do not add usage directions beyond what the current product label states for the intended use.\u003c\/div\u003e\n\u003cp style=\"margin-top: 25px;\"\u003eSee something that does not match the product you received? Please \u003cstrong\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003ca href=\"%20https:\/\/www.calvetsupply.com\/pages\/contact-us\" style=\"color: rgb(255, 128, 0);\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e so the information can be reviewed and updated.\u003c\/p\u003e\n\u003cdiv class=\"fph-educational-note\"\u003e\n\u003cstrong\u003eEducational use:\u003c\/strong\u003e This content is provided for general informational purposes only and is not a substitute for advice from a qualified veterinarian.\u003c\/div\u003e\n\u003cdiv class=\"fph-reviewed\"\u003eLast reviewed: July 10, 2026\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Aqua Soma Labs","offers":[{"title":"500-mg (30 Count)","offer_id":45972965359650,"sku":"483878","price":44.99,"currency_code":"USD","in_stock":true},{"title":"500-mg (60 Count)","offer_id":45972965392418,"sku":"799101","price":98.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/7008\/3874\/files\/FishFlox.png?v=1783911119"},{"product_id":"fish-cin","title":"Fish Cin (Fix Cin) Clindamycin 150mg Fish Antibacterial","description":"\u003cstyle\u003e\n  .fph-product-copy {\n    --fph-orange: #e37111;\n    --fph-teal: #148d85;\n    --fph-green: #64ad82;\n    --fph-dark: #09213f;\n    --fph-text: #24374e;\n    --fph-muted: #64748b;\n    --fph-border: #dce3eb;\n    --fph-light: #f5f8fa;\n    --fph-teal-light: #eef8f6;\n    --fph-orange-light: #fff6ed;\n    --fph-white: #ffffff;\n\n    width: 100%;\n    max-width: 1675px;\n    margin: 0 auto;\n    padding-right: 40px;\n    padding-left: 40px;\n    color: var(--fph-text);\n    font-family: inherit;\n    font-size: 17px;\n    line-height: 1.7;\n    scroll-behavior: smooth;\n  }\n\n  .fph-product-copy,\n  .fph-product-copy * {\n    box-sizing: border-box;\n  }\n\n 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padding-left: 21px;\n  }\n\n  .fph-info-box li {\n    margin: 8px 0;\n  }\n\n  .fph-highlight-note {\n    margin: 26px 0 0;\n    padding: 21px 23px;\n    border-left: 5px solid var(--fph-orange);\n    border-radius: 0 15px 15px 0;\n    background: var(--fph-orange-light);\n    color: #63310c;\n  }\n\n  .fph-order-note {\n    margin-top: 25px;\n    padding: 24px;\n    border: 1px solid #cde4de;\n    border-radius: 17px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-order-note p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-comparison-grid {\n    display: grid;\n    grid-template-columns: repeat(4, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 28px;\n  }\n\n  .fph-comparison-card {\n    padding: 25px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: linear-gradient(145deg, #eef8f6 0%, #ffffff 100%);\n  }\n\n  .fph-small-label {\n    display: block;\n    margin-bottom: 9px;\n    color: var(--fph-teal);\n    font-size: 12px;\n    font-weight: 800;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n  }\n\n  .fph-comparison-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-comparison-card p {\n    margin: 0;\n    color: var(--fph-muted);\n  }\n\n  .fph-benefits-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 28px;\n  }\n\n  .fph-benefit-card {\n    padding: 28px;\n    border: 1px solid var(--fph-border);\n    border-radius: 19px;\n    background: var(--fph-white);\n    box-shadow: 0 8px 28px rgba(15, 42, 70, 0.06);\n    transition: 0.3s ease;\n  }\n\n  .fph-benefit-card:hover {\n    transform: translateY(-5px);\n    box-shadow: 0 15px 38px rgba(15, 42, 70, 0.11);\n  }\n\n  .fph-benefit-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 45px;\n    height: 45px;\n    margin-bottom: 18px;\n    border-radius: 50%;\n    background: var(--fph-orange);\n    color: var(--fph-white);\n    font-size: 15px;\n    font-weight: 800;\n  }\n\n  .fph-benefit-card:nth-child(2n) .fph-benefit-number {\n    background: var(--fph-teal);\n  }\n\n  .fph-benefit-card:nth-child(3n) .fph-benefit-number {\n    background: var(--fph-green);\n  }\n\n  .fph-benefit-card h3 {\n    margin: 0 0 11px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-benefit-card p {\n    margin: 0;\n    color: var(--fph-muted);\n  }\n\n  .fph-steps {\n    display: grid;\n    gap: 18px;\n  }\n\n  .fph-step {\n    display: grid;\n    grid-template-columns: 62px minmax(0, 1fr);\n    gap: 18px;\n    padding: 25px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: #f1f9f7;\n  }\n\n  .fph-step-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 48px;\n    height: 48px;\n    border-radius: 50%;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-size: 19px;\n    font-weight: 800;\n  }\n\n  .fph-step h3 {\n    margin: 2px 0 9px;\n    color: var(--fph-dark);\n    font-size: 22px;\n    line-height: 1.35;\n  }\n\n  .fph-step p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-table-wrapper {\n    margin-top: 30px;\n    overflow-x: auto;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n  }\n\n  .fph-table {\n    width: 100%;\n    min-width: 650px;\n    border-collapse: collapse;\n    background: var(--fph-white);\n  }\n\n  .fph-table th,\n  .fph-table td {\n    padding: 16px 19px;\n    border-bottom: 1px solid var(--fph-border);\n    text-align: left;\n    vertical-align: top;\n  }\n\n  .fph-table th {\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-weight: 750;\n  }\n\n  .fph-table tr:nth-child(even) td {\n    background: #f7f9fa;\n  }\n\n  .fph-table tr:last-child td {\n    border-bottom: 0;\n  }\n\n  .fph-timeline {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 25px;\n  }\n\n  .fph-timeline-card {\n    padding: 25px;\n    border-radius: 18px;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n  }\n\n  .fph-timeline-card:nth-child(2) {\n    background: var(--fph-green);\n  }\n\n  .fph-timeline-card:nth-child(3) {\n    background: var(--fph-orange);\n  }\n\n  .fph-timeline-card h3,\n  .fph-timeline-card p {\n    color: var(--fph-white);\n  }\n\n  .fph-timeline-card h3 {\n    margin: 0 0 10px;\n    font-size: 22px;\n  }\n\n  .fph-timeline-card p {\n    margin: 0;\n  }\n\n  .fph-pro-tip {\n    margin-top: 22px;\n    padding: 22px 24px;\n    border-radius: 17px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-dark) 0%,\n      var(--fph-teal) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-pro-tip p {\n    margin: 0;\n    color: var(--fph-white);\n  }\n\n  .fph-safety-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 27px;\n  }\n\n  .fph-safety-card {\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n  }\n\n  .fph-safety-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-teal);\n    font-size: 22px;\n  }\n\n  .fph-safety-card p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-warning {\n    margin-top: 22px;\n    padding: 25px;\n    border: 1px solid #efc49c;\n    border-radius: 18px;\n    background: var(--fph-orange-light);\n  }\n\n  .fph-warning h3 {\n    margin: 0 0 10px;\n    color: #a84b06;\n    font-size: 22px;\n  }\n\n  .fph-warning p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-policy-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 26px;\n  }\n\n  .fph-policy-card {\n    padding: 27px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-light);\n  }\n\n  .fph-policy-card h3 {\n    margin: 0 0 11px;\n    color: var(--fph-dark);\n    font-size: 22px;\n  }\n\n  .fph-policy-card a {\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-policy-card a:hover {\n    text-decoration: underline;\n  }\n\n  .fph-faq {\n    display: grid;\n    gap: 12px;\n    margin-top: 27px;\n  }\n\n  .fph-faq details {\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 15px;\n    background: var(--fph-white);\n  }\n\n  .fph-faq summary {\n    position: relative;\n    padding: 19px 58px 19px 21px;\n    color: var(--fph-dark);\n    font-weight: 750;\n    cursor: pointer;\n    list-style: none;\n  }\n\n  .fph-faq summary::-webkit-details-marker {\n    display: none;\n  }\n\n  .fph-faq summary::after {\n    content: \"+\";\n    position: absolute;\n    top: 50%;\n    right: 21px;\n    color: var(--fph-teal);\n    font-size: 27px;\n    line-height: 1;\n    transform: translateY(-50%);\n  }\n\n  .fph-faq details[open] summary::after {\n    content: \"−\";\n  }\n\n  .fph-faq details[open] summary {\n    background: var(--fph-teal-light);\n  }\n\n  .fph-faq-answer {\n    padding: 0 21px 20px;\n    color: var(--fph-muted);\n  }\n\n  .fph-faq-answer p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-related-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 27px;\n  }\n\n  .fph-related-card {\n    display: flex;\n    flex-direction: column;\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n    box-shadow: 0 7px 24px rgba(15, 42, 70, 0.05);\n  }\n\n  .fph-related-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-related-card p {\n    flex: 1;\n    color: var(--fph-muted);\n  }\n\n  .fph-related-card a {\n    margin-top: auto;\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-related-card a:hover {\n    text-decoration: underline;\n  }\n\n  .fph-browse-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 20px;\n  }\n\n  .fph-browse-card {\n    padding: 26px;\n    border-radius: 18px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card:nth-child(2) {\n    background: linear-gradient(\n      135deg,\n      var(--fph-orange) 0%,\n      #f09a47 100%\n    );\n  }\n\n  .fph-browse-card h3,\n  .fph-browse-card p,\n  .fph-browse-card a {\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card h3 {\n    margin: 0 0 9px;\n    font-size: 22px;\n  }\n\n  .fph-browse-card a {\n    font-weight: 800;\n  }\n\n  .fph-image-note {\n    margin-top: 40px;\n    padding: 16px 20px;\n    border: 1px dashed var(--fph-border);\n    border-radius: 14px;\n    background: #fafbfc;\n    text-align: center;\n    font-weight: 700;\n  }\n\n  .fph-verification {\n    margin-top: 30px;\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 20px;\n    background: var(--fph-white);\n  }\n\n  .fph-verification-header {\n    padding: 25px;\n    background: var(--fph-dark);\n    color: var(--fph-white);\n  }\n\n  .fph-verification-header h2 {\n    margin: 0 0 7px;\n    color: var(--fph-white);\n    font-size: 29px;\n  }\n\n  .fph-verification-header p {\n    margin: 0;\n    color: rgba(255, 255, 255, 0.88);\n  }\n\n  .fph-verification-body {\n    padding: 27px;\n  }\n\n  .fph-verification-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin: 24px 0;\n  }\n\n  .fph-verification-card {\n    padding: 23px;\n    border: 1px solid #cfe2df;\n    border-radius: 16px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-verification-card h3 {\n    margin: 0 0 9px;\n    color: var(--fph-teal);\n    font-size: 20px;\n  }\n\n  .fph-verification-card p {\n    margin: 0;\n  }\n\n  .fph-contact-link {\n    color: var(--fph-orange);\n    font-weight: 750;\n  }\n\n  .fph-educational-note {\n    margin-top: 24px;\n    padding: 20px 22px;\n    border-radius: 15px;\n    background: #eef3f7;\n    color: #42566d;\n    font-size: 15px;\n  }\n\n  .fph-reviewed {\n    margin-top: 18px;\n    color: var(--fph-muted);\n    font-size: 14px;\n  }\n\n  @media (max-width: 1050px) {\n    .fph-comparison-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n\n    .fph-benefits-grid,\n    .fph-related-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n  }\n\n  @media (max-width: 749px) {\n    .fph-product-copy {\n      padding-right: 18px;\n      padding-left: 18px;\n      font-size: 16px;\n      line-height: 1.65;\n    }\n\n    .fph-product-title {\n      font-size: 32px;\n    }\n\n    .fph-section {\n      padding: 39px 0;\n    }\n\n    .fph-section-title {\n      font-size: 28px;\n    }\n\n    .fph-toc-label {\n      display: none;\n    }\n\n    .fph-toc a {\n      min-height: 44px;\n      padding: 9px 17px;\n      font-size: 15px;\n    }\n\n    .fph-glance-row {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-glance-label {\n      padding-bottom: 7px;\n    }\n\n    .fph-glance-value {\n      padding-top: 7px;\n    }\n\n    .fph-comparison-grid,\n    .fph-benefits-grid,\n    .fph-timeline,\n    .fph-safety-grid,\n    .fph-policy-grid,\n    .fph-related-grid,\n    .fph-browse-grid,\n    .fph-verification-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-step {\n      grid-template-columns: 48px minmax(0, 1fr);\n      gap: 14px;\n      padding: 20px;\n    }\n  }\n\n  @media (prefers-reduced-motion: reduce) {\n    .fph-product-copy *,\n    .fph-product-copy *::before,\n    .fph-product-copy *::after {\n      transition: none !important;\n      animation: none !important;\n      scroll-behavior: auto !important;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"fph-product-copy\"\u003e\n\u003csection id=\"overview\" class=\"fph-section\"\u003e\n\u003ch1 class=\"fph-product-title\"\u003eFish Cin (Fix Cin) Clindamycin 150 mg Capsules \/ 100 Doses\u003c\/h1\u003e\n\u003cnav aria-label=\"On this page\" class=\"fph-toc\"\u003e\u003cspan class=\"fph-toc-label\"\u003eOn this page:\u003c\/span\u003e \u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e \u003ca href=\"#fish-cin-vs-fix-cin\"\u003eFish Cin vs Fix Cin\u003c\/a\u003e \u003ca href=\"#benefits\"\u003eBenefits\u003c\/a\u003e \u003ca href=\"#usage\"\u003eUsage\u003c\/a\u003e \u003ca href=\"#how-it-works\"\u003eHow It Works\u003c\/a\u003e \u003ca href=\"#safety\"\u003eSafety\u003c\/a\u003e \u003ca href=\"#shipping\"\u003eShipping\u003c\/a\u003e \u003ca href=\"#faq\"\u003eFAQ\u003c\/a\u003e\u003c\/nav\u003e\n\u003cdiv class=\"fph-glance\"\u003e\n\u003cdiv class=\"fph-glance-heading\"\u003eFix Cin at a Glance\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eFor\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eOrnamental aquarium fish for treatment-tank use only\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eHelps with\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFin and tail rot, mouth rot, skin ulcers, lesions, and other suspected bacterial problems\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eForm\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eCapsules containing dissolvable powder, 150 mg each\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eCount size\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003e100-count bottle\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eWater type\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFreshwater and saltwater\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eMade in\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eUnited States by Aqua Soma Labs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"fph-lead\"\u003e\u003cstrong\u003eFix Cin\u003c\/strong\u003e is an antibacterial treatment from Aqua Soma Labs for ornamental aquarium fish.\u003c\/p\u003e\n\u003cp\u003eEach capsule contains 150 mg of clindamycin in a dissolvable powder. Aquarium keepers use it to help manage suspected bacterial problems such as fin and tail rot, mouth rot or cotton-mouth, skin ulcers, and slow-healing lesions.\u003c\/p\u003e\n\u003cp\u003eThe bottle contains 100 capsules, making it suitable for larger aquariums, multi-tank fish rooms, quarantine systems, or repeat treatment plans.\u003c\/p\u003e\n\u003cp\u003eIf you previously purchased Thomas Labs Fish Cin or Aqua-Cin, Fix Cin is the current replacement and provides clindamycin at the same 150 mg capsule strength.\u003c\/p\u003e\n\u003cp\u003eAquarium keepers may consider it when fish show fin and tail deterioration, mouth rot or cotton-mouth, bacterial dropsy-like symptoms, skin ulcers, recurring lesions, swim bladder concerns, or other suspected internal bacterial problems.\u003c\/p\u003e\n\u003cp\u003eThe capsule opens easily so the powder can be dissolved and distributed throughout a separate hospital or quarantine tank.\u003c\/p\u003e\n\u003cp\u003eUse Fix Cin at the first signs of suspected bacterial stress, alongside clean water, stable temperature, strong aeration, and careful observation.\u003c\/p\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eFish Symptoms to Watch For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eClamped, frayed, or deteriorating fins\u003c\/li\u003e\n\u003cli\u003eFin and tail rot\u003c\/li\u003e\n\u003cli\u003eReddened areas or red streaking\u003c\/li\u003e\n\u003cli\u003eOpen sores, skin ulcers, or slow-healing lesions\u003c\/li\u003e\n\u003cli\u003eCottony-looking mouth damage or mouth rot\u003c\/li\u003e\n\u003cli\u003eListlessness or lethargy\u003c\/li\u003e\n\u003cli\u003ePersistent appetite loss\u003c\/li\u003e\n\u003cli\u003ePossible bacterial swim bladder or internal concerns\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 28px;\"\u003eTreating early, together with clean water and strong aeration, helps protect the rest of the aquarium while the affected fish recovers.\u003c\/p\u003e\n\u003cp\u003eIf the main aquarium contains shrimp, snails, corals, or other sensitive invertebrates, move affected fish to a separate treatment tank.\u003c\/p\u003e\n\u003cdiv class=\"fph-order-note\"\u003e\n\u003cp\u003e\u003cstrong\u003eSame-day dispatch:\u003c\/strong\u003e Qualifying orders placed before 1:30 p.m. CT, Monday through Friday, ship directly from our United States warehouse.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e This product is intended for ornamental aquarium fish only. It is not intended for animals raised for food.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"fish-cin-vs-fix-cin\" class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFish Cin vs Fix Cin: What Changed?\u003c\/h2\u003e\n\u003cp\u003eIf you previously purchased Thomas Labs Fish Cin or Aqua-Cin, here is what changed and what remains the same.\u003c\/p\u003e\n\u003cdiv class=\"fph-comparison-grid\"\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eActive ingredient\u003c\/span\u003e\n\u003ch3\u003eSame Clindamycin Formula\u003c\/h3\u003e\n\u003cp\u003eFix Cin contains clindamycin hydrochloride at 150 mg per capsule, matching the strength associated with Thomas Labs Fish Cin.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eManufacturer\u003c\/span\u003e\n\u003ch3\u003eNew Manufacturer\u003c\/h3\u003e\n\u003cp\u003eFix Cin is made in the United States by Aqua Soma Labs and replaces discontinued Thomas Labs Fish Cin and Aqua-Cin product lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eCapsule format\u003c\/span\u003e\n\u003ch3\u003eSame Dissolvable Powder Form\u003c\/h3\u003e\n\u003cp\u003eThe capsule opens so the clindamycin powder can be mixed into aquarium water in the same familiar treatment format.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eBottle size\u003c\/span\u003e\n\u003ch3\u003e100-Count Bottle\u003c\/h3\u003e\n\u003cp\u003eThe 100-capsule supply is practical for larger treatment tanks, repeat treatment, quarantine systems, and multi-tank aquarium keepers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"benefits\" class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eBenefits of Fix Cin for Fish\u003c\/h2\u003e\n\u003cdiv class=\"fph-benefits-grid\"\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch3\u003eSupport for Common Bacterial Aquarium Problems\u003c\/h3\u003e\n\u003cp\u003eFix Cin is commonly considered when bacterial stress appears through fin damage, mouth irritation, ulcers, lesions, or slow-healing wounds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch3\u003eFreshwater and Saltwater Treatment\u003c\/h3\u003e\n\u003cp\u003eAquarium keepers may use Fix Cin in properly prepared freshwater or saltwater hospital tanks according to the current label directions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch3\u003eHelpful for Lesions and Wound-Type Concerns\u003c\/h3\u003e\n\u003cp\u003eClindamycin may be considered when ornamental fish display redness, open sores, frayed fins, recurring lesions, or other suspected bacterial skin and soft-tissue problems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch3\u003eSupport for Internal Bacterial Concerns\u003c\/h3\u003e\n\u003cp\u003eFix Cin may also be used in a treatment setup when appetite loss, low activity, digestive-type changes, or swim bladder symptoms may be connected with an internal bacterial problem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e05\u003c\/div\u003e\n\u003ch3\u003eConsistent 150 mg Capsules\u003c\/h3\u003e\n\u003cp\u003eEach capsule provides a fixed 150 mg amount of clindamycin, making aquarium-volume calculations easier and more repeatable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e06\u003c\/div\u003e\n\u003ch3\u003e100 Capsules for Larger Setups\u003c\/h3\u003e\n\u003cp\u003eThe 100-count bottle is practical for larger aquariums, dedicated quarantine tanks, repeat treatment, and multi-tank fish rooms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e07\u003c\/div\u003e\n\u003ch3\u003eHospital-Tank Friendly\u003c\/h3\u003e\n\u003cp\u003eTreatment in a separate hospital tank keeps the product where it is needed and reduces unnecessary exposure of the display aquarium and healthy tank mates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"usage\" class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eUsage Guidelines \u0026amp; Instructions\u003c\/h2\u003e\n\u003cdiv class=\"fph-steps\"\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e1\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eSet Up a Separate Treatment Tank\u003c\/h3\u003e\n\u003cp\u003eMove affected fish to a dedicated hospital or quarantine tank whenever possible.\u003c\/p\u003e\n\u003cp\u003eThis makes treatment and observation easier while reducing unnecessary exposure of healthy tank mates.\u003c\/p\u003e\n\u003cp\u003eRemove activated carbon and other chemical filtration media and switch off ultraviolet sterilization during treatment.\u003c\/p\u003e\n\u003cp\u003eIncrease aeration and maintain stable temperature.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e2\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eDose According to Aquarium Water Volume\u003c\/h3\u003e\n\u003cp\u003eAdd one 150 mg capsule per 10 gallons or approximately 38 litres of treatment water.\u003c\/p\u003e\n\u003cp\u003eOpen the capsule and mix the powder in a small cup of aquarium water before adding it evenly throughout the treatment tank.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e3\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eRepeat Every 24 Hours\u003c\/h3\u003e\n\u003cp\u003eRepeat the treatment once every 24 hours according to the current bottle label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e4\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003ePerform Partial Water Changes\u003c\/h3\u003e\n\u003cp\u003ePerform a partial water change between treatments to support suitable water quality.\u003c\/p\u003e\n\u003cp\u003eMonitor ammonia, nitrite, temperature, oxygen levels, and fish behavior throughout treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e5\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eContinue for 5 to 10 Days\u003c\/h3\u003e\n\u003cp\u003eContinue treatment for 5 to 10 days according to the severity of the suspected bacterial problem and the current product label.\u003c\/p\u003e\n\u003cp\u003eComplete the recommended treatment period unless the fish develop severe distress or a qualified aquatic professional advises otherwise.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e6\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eStop if There Is No Improvement by Day Five\u003c\/h3\u003e\n\u003cp\u003eIf no improvement appears within five days, discontinue use and reassess the likely cause.\u003c\/p\u003e\n\u003cp\u003eSeek guidance from an aquatic veterinarian or fish-health professional, especially when symptoms worsen.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e7\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eClear the Harmless Yellow Tint After Treatment\u003c\/h3\u003e\n\u003cp\u003eTreatment water may develop a harmless yellow tint.\u003c\/p\u003e\n\u003cp\u003eAfter treatment, change approximately 20% of the water and restore activated carbon until the water clears.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eFix Cin Amounts by Aquarium Size\u003c\/h3\u003e\n\u003cdiv class=\"fph-table-wrapper\"\u003e\n\u003ctable class=\"fph-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTank volume\u003c\/th\u003e\n\u003cth\u003eClindamycin per use\u003c\/th\u003e\n\u003cth\u003e150 mg capsules\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 gallons (38 L)\u003c\/td\u003e\n\u003ctd\u003e150 mg\u003c\/td\u003e\n\u003ctd\u003e1 capsule\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 gallons (76 L)\u003c\/td\u003e\n\u003ctd\u003e300 mg\u003c\/td\u003e\n\u003ctd\u003e2 capsules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30 gallons (114 L)\u003c\/td\u003e\n\u003ctd\u003e450 mg\u003c\/td\u003e\n\u003ctd\u003e3 capsules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40 gallons (151 L)\u003c\/td\u003e\n\u003ctd\u003e600 mg\u003c\/td\u003e\n\u003ctd\u003e4 capsules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e55 gallons (208 L)\u003c\/td\u003e\n\u003ctd\u003eApproximately 825 mg\u003c\/td\u003e\n\u003ctd\u003e5 to 6 capsules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eThese figures follow the supplied guideline of one 150 mg capsule per 10 gallons, approximately 15 mg per gallon. Dose according to the actual water volume of the treatment tank, not the number of fish. The current bottle label or instructions from an aquatic veterinarian take priority over this quick-reference chart.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat to Expect During Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-timeline\"\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 1 to 2\u003c\/h3\u003e\n\u003cp\u003eFish may hide or eat less, and the water may develop a harmless yellow tint. Maintain strong aeration and continue monitoring water quality.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 3 to 5\u003c\/h3\u003e\n\u003cp\u003eLook for sores and red areas that stop spreading, fins that begin holding their shape, returning appetite, and improved activity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 5 to 10\u003c\/h3\u003e\n\u003cp\u003eComplete the recommended treatment period. Afterward, change approximately 20% of the water and restore activated carbon to help clear remaining treatment and discoloration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eIf no improvement appears by day five, or if the fish become worse, discontinue treatment and seek aquatic veterinary guidance.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat You Need for Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003cul\u003e\n\u003cli\u003eA separate hospital or quarantine tank\u003c\/li\u003e\n\u003cli\u003eA suitable aquarium heater\u003c\/li\u003e\n\u003cli\u003eAn air stone or established sponge filter\u003c\/li\u003e\n\u003cli\u003eAn ammonia and nitrite test kit\u003c\/li\u003e\n\u003cli\u003eA suitable water conditioner or dechlorinator\u003c\/li\u003e\n\u003cli\u003eA small net for gentle fish transfer\u003c\/li\u003e\n\u003cli\u003eA clean cup for mixing the capsule powder\u003c\/li\u003e\n\u003cli\u003eActivated carbon for use after treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-pro-tip\"\u003e\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Antibacterial treatments may affect biological filtration in some aquarium setups. Test ammonia and nitrite regularly, maintain strong aeration, and use a separate treatment tank whenever possible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"how-it-works\" class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eHow Fix Cin Works\u003c\/h2\u003e\n\u003cp class=\"fph-lead\"\u003eEach Fix Cin capsule contains 150 mg of clindamycin in a dissolvable powder.\u003c\/p\u003e\n\u003cp\u003eClindamycin works by slowing the growth of certain susceptible bacteria, giving affected ornamental fish a better opportunity to recover when treatment is combined with clean water and appropriate aquarium care.\u003c\/p\u003e\n\u003cp\u003eTreatment success depends on the organism involved, the condition of the fish, and the stability of the treatment system.\u003c\/p\u003e\n\u003cp\u003eFix Cin is best considered when a bacterial problem is suspected rather than for fungal, parasitic, or viral conditions.\u003c\/p\u003e\n\u003cp\u003eThe capsule shell and standard inactive ingredients help hold the powder together, maintain stability during storage, and allow the contents to disperse when mixed into aquarium water.\u003c\/p\u003e\n\u003cp\u003eThe complete inactive ingredient breakdown may not be printed on the retail label.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection id=\"safety\" class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eSafety and Tank Notes\u003c\/h2\u003e\n\u003cp\u003eWhen used according to the current label, Fix Cin usually causes no problems in ornamental aquarium fish.\u003c\/p\u003e\n\u003cp\u003eIncorrect amounts, combining multiple treatments, unnecessarily prolonged use, or repeat treatment without confirming the cause may increase the risk of unwanted reactions and antibacterial resistance.\u003c\/p\u003e\n\u003cdiv class=\"fph-safety-grid\"\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003ePossible Fish Reactions\u003c\/h3\u003e\n\u003cp\u003eFish may temporarily hide, appear mildly lethargic, eat less, or show temporary treatment-water discoloration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eStop Treatment and Act Quickly If\u003c\/h3\u003e\n\u003cp\u003eStop treatment if fish develop rapid gill movement, loss of balance, surface gasping, rolling, severe weakness, or remain on the bottom.\u003c\/p\u003e\n\u003cp\u003eIncrease aeration and perform an appropriate partial water change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eSupport Water Quality\u003c\/h3\u003e\n\u003cp\u003eMaintain strong aeration, test ammonia and nitrite, and perform partial water changes as needed between treatments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eFiltration During Treatment\u003c\/h3\u003e\n\u003cp\u003eRemove activated carbon and other chemical filtration media and switch off UV sterilization during treatment.\u003c\/p\u003e\n\u003cp\u003eActivated carbon may be restored after treatment to help clear discoloration and remaining product.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eInvertebrates\u003c\/h3\u003e\n\u003cp\u003eIf the display aquarium contains shrimp, snails, corals, or other sensitive invertebrates, move affected fish to a separate hospital tank.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eDo Not Mix Treatments\u003c\/h3\u003e\n\u003cp\u003eDo not combine Fix Cin with other aquarium treatments unless a qualified professional specifically recommends the combination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-warning\"\u003e\n\u003ch3\u003eImportant Warnings \u0026amp; Precautions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAquarium use only:\u003c\/strong\u003e Fix Cin is intended for ornamental aquarium fish only.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot for food fish:\u003c\/strong\u003e Do not use this product on animals raised for human consumption.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Keep capsules in their original, tightly closed container at 59–86°F or 15–30°C.\u003c\/p\u003e\n\u003cp\u003eStore in a cool, dry location protected from moisture and direct sunlight.\u003c\/p\u003e\n\u003cp\u003eKeep out of reach of children and animals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDiscontinue if no improvement:\u003c\/strong\u003e Stop treatment if no improvement appears after five days and reassess the likely cause.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"shipping\" class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cdiv class=\"fph-policy-grid\"\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eShipping Policy\u003c\/h3\u003e\n\u003cp\u003eOrders ship from our United States warehouse within one business day through USPS or UPS.\u003c\/p\u003e\n\u003cp\u003eQualifying orders placed before 1:30 p.m. CT, Monday through Friday, may ship the same business day.\u003c\/p\u003e\n\u003cp\u003eShipping rates and estimated delivery times are calculated at checkout.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/shipping-policy\"\u003eReview Shipping Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eRefund Policy\u003c\/h3\u003e\n\u003cp\u003eIf there is an issue with your order, eligible products may be returned or exchanged within 30 days according to the current store guidelines.\u003c\/p\u003e\n\u003cp\u003eReview the complete refund policy before returning any item.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/refund-policy\"\u003eReview Refund Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection id=\"faq\" class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"fph-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is Fix Cin used for in fish?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Cin contains clindamycin and is intended for certain suspected bacterial problems in ornamental aquarium fish, including fin and tail rot, mouth rot, ulcers, lesions, open sores, and soft-tissue concerns.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWhat is the difference between Fish Cin and Fix Cin?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Cin is the current Aqua Soma Labs replacement for discontinued Thomas Labs Fish Cin. It provides the same 150 mg clindamycin capsule strength in updated packaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Cin a replacement for Aqua-Cin?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Cin is presented as the current replacement for older Aqua-Cin clindamycin products used by aquarium keepers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhere can I buy clindamycin for fish online?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Cin 150 mg capsules can be ordered through this online store in a 100-count bottle and shipped according to the current store shipping policy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the active ingredient in Fix Cin?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eEach capsule contains 150 mg of clindamycin in a dissolvable powder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I know if my fish might need clindamycin?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003ePossible bacterial signs include frayed fins, mouth damage, red streaking, open sores, ulcers, recurring lesions, appetite loss, and lethargy.\u003c\/p\u003e\n\u003cp\u003eSimilar symptoms may result from poor water quality, parasites, fungal conditions, injury, or other causes, so professional assessment is recommended when the diagnosis is uncertain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Cin treat fungal, parasitic, or viral problems?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Cin is an antibacterial product. It should not be expected to treat fungal, parasitic, or viral conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use Fix Cin in my main community tank?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eA separate hospital or quarantine tank is preferred. This protects healthy tank mates and reduces disruption to the display aquarium's biological filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Cin safe for saltwater fish or reef tanks?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Cin may be used in a properly prepared saltwater hospital tank. Do not treat a reef display containing corals or sensitive invertebrates when a separate treatment system is available.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the recommended amount for fish?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied guideline is one 150 mg capsule per 10 gallons or approximately 38 litres of treatment water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long should I treat with Fix Cin?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied directions describe treatment every 24 hours for 5 to 10 days, with partial water changes between treatments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat if my fish shows no improvement after five days?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDiscontinue treatment and reassess the water quality and likely cause. Seek aquatic veterinary guidance, especially when symptoms become worse.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill Fix Cin affect beneficial aquarium bacteria?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAntibacterial treatments may disturb biological filtration. Use a separate treatment tank and monitor ammonia and nitrite closely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I mix Fix Cin with other treatments?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDo not combine Fix Cin with other aquarium treatments unless a qualified professional specifically recommends the combination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use Fix Cin as a preventive treatment?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eRoutine preventive use is not recommended. Treatment should be based on observed symptoms, the current bottle label, and professional guidance when the diagnosis is uncertain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Cin safe for betta fish and small aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eSmall treatment tanks require careful measurement. The supplied guideline is one 150 mg capsule per 10 gallons. Follow the current label or consult an aquatic professional rather than estimating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Cin the same as fish clindamycin?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFish clindamycin is a common search term for clindamycin capsules labeled for ornamental aquarium fish. Fix Cin supplies clindamycin in a 150 mg capsule.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs there a Fix Cin 300 mg version?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThis Fix Cin product is supplied in a 150 mg capsule strength. A total amount of 300 mg would equal two 150 mg capsules according to the aquarium-volume guide.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow should I store and dispose of Fix Cin capsules?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eStore capsules tightly closed in their original container at 59–86°F or 15–30°C in a cool, dry location protected from sunlight and moisture.\u003c\/p\u003e\n\u003cp\u003eFollow the product label and applicable local requirements when disposing of unused capsules, treatment water, or filter media. Avoid releasing concentrated treatment into natural waterways.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow soon should I see improvement?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eImprovement may become visible within three to five days through sores that stop spreading, improved fin condition, returning appetite, and increased activity.\u003c\/p\u003e\n\u003cp\u003eStop treatment and seek professional guidance if the fish become worse or no improvement appears by day five.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eMore Fish \u0026amp; Bird Treatments\u003c\/h2\u003e\n\u003cdiv class=\"fph-related-grid\"\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Mox (Amoxicillin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, dropsy, ulcers, and other suspected bacterial concerns in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-mox\"\u003eShop Fix Mox → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zole (Metronidazole) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for certain anaerobic and protozoal concerns, including Hexamita and hole-in-the-head symptoms.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zole\"\u003eShop Fix Zole → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Doxy (Doxycycline) 100 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for columnaris, respiratory concerns, and Mycoplasma-related problems in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-doxy\"\u003eShop Fix Doxy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zithro (Azithromycin) 250 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, columnaris, gill disease, and veterinarian-directed avian respiratory concerns.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zithro\"\u003eShop Fix Zithro → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Sulfa (SMZ\/TMP) 960 mg\u003c\/h3\u003e\n\u003cp\u003eA dual-ingredient treatment used for a range of suspected bacterial concerns in ornamental aquarium fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-sulfa\"\u003eShop Fix Sulfa → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Pen (Penicillin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for certain suspected bacterial problems in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-pen\"\u003eShop Fix Pen → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flex (Cephalexin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, ulcers, infected wounds, and bacterial skin concerns in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flex\"\u003eShop Fix Flex → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flox (Ciprofloxacin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for suspected bacterial concerns including fin rot, ulcers, columnaris-type patches, and septicemia.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flox\"\u003eShop Fix Flox → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-grid\"\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eBrowse All Treatments\u003c\/h3\u003e\n\u003cp\u003eExplore the complete Fish \u0026amp; Bird Treatments Collection for more Fix line products and related care options.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/collections\/fish-antibiotics\"\u003eExplore the Collection → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eGuides and Treatment Tips\u003c\/h3\u003e\n\u003cp\u003eVisit the Fish \u0026amp; Bird Treatments Blog for practical aquarium guides, water-care information, and treatment tips.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/blogs\/fish-antibiotics\"\u003eVisit the Blog → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-image-note\"\u003eTap the product image above to expand and zoom 🔍\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003cdiv class=\"fph-verification\"\u003e\n\u003cdiv class=\"fph-verification-header\"\u003e\n\u003ch2\u003eTransparency \u0026amp; Verification\u003c\/h2\u003e\n\u003cp\u003eHow Product Information Is Verified\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eWho is responsible for this page:\u003c\/strong\u003e The store editorial team responsible for reviewing and maintaining product information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVerification snapshot:\u003c\/strong\u003e This page is written from the current product label for this item and reviewed for accuracy and consistency before publishing.\u003c\/p\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eHow We Verify Product Information\u003c\/h3\u003e\n\u003cdiv class=\"fph-verification-grid\"\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eLabel-First Accuracy\u003c\/h3\u003e\n\u003cp\u003eDirections, treatment duration, storage information, and warnings are taken from the current product label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eSpecification Validation\u003c\/h3\u003e\n\u003cp\u003eThe active ingredient, capsule strength, bottle count, and manufacturer information are cross-checked against available product specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eConsistency Checks\u003c\/h3\u003e\n\u003cp\u003eProduct content is reviewed for consistent directions, strength information, storage details, and safety language throughout the page.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eUpdates\u003c\/h3\u003e\n\u003cp\u003ePages are updated when product labels, packaging, capsule counts, manufacturer details, or directions change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eWhat we do not do:\u003c\/strong\u003e We do not invent product claims, and we do not add usage directions beyond what the current product label states for its intended use.\u003c\/div\u003e\n\u003cp style=\"margin-top: 25px;\"\u003eSee something that does not match the product you received? Please \u003ca href=\"https:\/\/www.calvetsupply.com\/pages\/contact-us\"\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003econtact us\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e so the information can be reviewed and updated.\u003c\/p\u003e\n\u003cdiv class=\"fph-educational-note\"\u003e\n\u003cstrong\u003eEducational use:\u003c\/strong\u003e This content is provided for general informational purposes only and is not a substitute for advice from a qualified veterinarian.\u003c\/div\u003e\n\u003cdiv class=\"fph-reviewed\"\u003eLast reviewed: July 10, 2026\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Aqua Soma Labs","offers":[{"title":"Default Title","offer_id":45972965556258,"sku":"929895","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/7008\/3874\/files\/FishCin_80437d78-9eea-4cbf-bef3-d2b158b6477b.png?v=1783911199"},{"product_id":"fish-flucon","title":"Fish Flucon (Fix Flucon) Fluconazole 100mg Fish Antifungal","description":"\u003cstyle\u003e\n  .fph-product-copy {\n    --fph-orange: #e37111;\n    --fph-teal: #148d85;\n    --fph-green: #64ad82;\n    --fph-dark: #09213f;\n    --fph-text: #24374e;\n    --fph-muted: #64748b;\n    --fph-border: #dce3eb;\n    --fph-light: #f5f8fa;\n    --fph-teal-light: #eef8f6;\n    --fph-orange-light: #fff6ed;\n    --fph-white: #ffffff;\n\n    width: 100%;\n    max-width: 1675px;\n    margin: 0 auto;\n    padding-right: 40px;\n    padding-left: 40px;\n    color: var(--fph-text);\n    font-family: inherit;\n    font-size: 17px;\n    line-height: 1.7;\n    scroll-behavior: smooth;\n  }\n\n  .fph-product-copy,\n  .fph-product-copy * {\n    box-sizing: border-box;\n  }\n\n  .fph-product-copy section {\n    scroll-margin-top: 120px;\n  }\n\n  .fph-product-copy p {\n    margin: 0 0 18px;\n  }\n\n  .fph-product-copy strong {\n    font-weight: 750;\n  }\n\n  .fph-product-title {\n    margin: 0 0 26px;\n    color: var(--fph-dark);\n    font-size: clamp(34px, 4vw, 52px);\n    font-weight: 800;\n    line-height: 1.12;\n    letter-spacing: -0.025em;\n  }\n\n  .fph-section-title {\n    margin: 0 0 22px;\n    color: var(--fph-dark);\n    font-size: clamp(29px, 3vw, 40px);\n    font-weight: 800;\n    line-height: 1.2;\n    letter-spacing: -0.02em;\n  }\n\n  .fph-subtitle {\n    margin: 32px 0 16px;\n    color: var(--fph-dark);\n    font-size: 23px;\n    font-weight: 750;\n    line-height: 1.35;\n  }\n\n  .fph-lead {\n    color: #30445d;\n    font-size: 19px;\n    line-height: 1.8;\n  }\n\n  .fph-section {\n    padding: 55px 0;\n    border-top: 1px solid #edf0f3;\n  }\n\n  .fph-section:first-of-type {\n    border-top: 0;\n  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 border: 1px solid var(--fph-border);\n    border-radius: 20px;\n    background: var(--fph-white);\n  }\n\n  .fph-glance-heading {\n    padding: 20px 24px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n    font-size: 23px;\n    font-weight: 800;\n  }\n\n  .fph-glance-row {\n    display: grid;\n    grid-template-columns: 40% 60%;\n    border-top: 1px solid var(--fph-border);\n  }\n\n  .fph-glance-label,\n  .fph-glance-value {\n    padding: 16px 19px;\n  }\n\n  .fph-glance-label {\n    background: #f3f5f7;\n    color: var(--fph-dark);\n    font-weight: 750;\n  }\n\n  .fph-glance-value {\n    background: #f9fafb;\n  }\n\n  .fph-two-column {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 22px;\n    margin-top: 28px;\n  }\n\n  .fph-info-box {\n    padding: 26px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-light);\n  }\n\n  .fph-info-box h3 {\n    margin: 0 0 14px;\n    color: var(--fph-dark);\n    font-size: 22px;\n    font-weight: 750;\n  }\n\n  .fph-info-box ul {\n    margin: 0;\n    padding-left: 21px;\n  }\n\n  .fph-info-box li {\n    margin: 8px 0;\n  }\n\n  .fph-highlight-note {\n    margin: 26px 0 0;\n    padding: 21px 23px;\n    border-left: 5px solid var(--fph-orange);\n    border-radius: 0 15px 15px 0;\n    background: var(--fph-orange-light);\n    color: #63310c;\n  }\n\n  .fph-order-note {\n    margin-top: 25px;\n    padding: 24px;\n    border: 1px solid #cde4de;\n    border-radius: 17px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-order-note p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-comparison-grid {\n    display: grid;\n    grid-template-columns: repeat(4, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 28px;\n  }\n\n  .fph-comparison-card {\n    padding: 25px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: linear-gradient(145deg, #eef8f6 0%, #ffffff 100%);\n  }\n\n  .fph-small-label {\n    display: block;\n    margin-bottom: 9px;\n    color: var(--fph-teal);\n    font-size: 12px;\n    font-weight: 800;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n  }\n\n  .fph-comparison-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-comparison-card p {\n    margin: 0;\n    color: var(--fph-muted);\n  }\n\n  .fph-benefits-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 28px;\n  }\n\n  .fph-benefit-card {\n    padding: 28px;\n    border: 1px solid var(--fph-border);\n    border-radius: 19px;\n    background: var(--fph-white);\n    box-shadow: 0 8px 28px rgba(15, 42, 70, 0.06);\n    transition: 0.3s ease;\n  }\n\n  .fph-benefit-card:hover {\n    transform: translateY(-5px);\n    box-shadow: 0 15px 38px rgba(15, 42, 70, 0.11);\n  }\n\n  .fph-benefit-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 45px;\n    height: 45px;\n    margin-bottom: 18px;\n    border-radius: 50%;\n    background: var(--fph-orange);\n    color: var(--fph-white);\n    font-size: 15px;\n    font-weight: 800;\n  }\n\n  .fph-benefit-card:nth-child(2n) .fph-benefit-number {\n    background: var(--fph-teal);\n  }\n\n  .fph-benefit-card:nth-child(3n) .fph-benefit-number {\n    background: var(--fph-green);\n  }\n\n  .fph-benefit-card h3 {\n    margin: 0 0 11px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-benefit-card p {\n    margin: 0;\n    color: var(--fph-muted);\n  }\n\n  .fph-summary-box {\n    margin-bottom: 28px;\n    padding: 26px;\n    border-radius: 18px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-dark) 0%,\n      var(--fph-teal) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-summary-box h3,\n  .fph-summary-box p {\n    color: var(--fph-white);\n  }\n\n  .fph-summary-box h3 {\n    margin: 0 0 12px;\n    font-size: 23px;\n  }\n\n  .fph-summary-box p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-steps {\n    display: grid;\n    gap: 18px;\n  }\n\n  .fph-step {\n    display: grid;\n    grid-template-columns: 62px minmax(0, 1fr);\n    gap: 18px;\n    padding: 25px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: #f1f9f7;\n  }\n\n  .fph-step-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 48px;\n    height: 48px;\n    border-radius: 50%;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-size: 19px;\n    font-weight: 800;\n  }\n\n  .fph-step h3 {\n    margin: 2px 0 9px;\n    color: var(--fph-dark);\n    font-size: 22px;\n    line-height: 1.35;\n  }\n\n  .fph-step p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-table-wrapper {\n    margin-top: 30px;\n    overflow-x: auto;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n  }\n\n  .fph-table {\n    width: 100%;\n    min-width: 650px;\n    border-collapse: collapse;\n    background: var(--fph-white);\n  }\n\n  .fph-table th,\n  .fph-table td {\n    padding: 16px 19px;\n    border-bottom: 1px solid var(--fph-border);\n    text-align: left;\n    vertical-align: top;\n  }\n\n  .fph-table th {\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-weight: 750;\n  }\n\n  .fph-table tr:nth-child(even) td {\n    background: #f7f9fa;\n  }\n\n  .fph-table tr:last-child td {\n    border-bottom: 0;\n  }\n\n  .fph-timeline {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 25px;\n  }\n\n  .fph-timeline-card {\n    padding: 25px;\n    border-radius: 18px;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n  }\n\n  .fph-timeline-card:nth-child(2) {\n    background: var(--fph-green);\n  }\n\n  .fph-timeline-card:nth-child(3) {\n    background: var(--fph-orange);\n  }\n\n  .fph-timeline-card h3,\n  .fph-timeline-card p {\n    color: var(--fph-white);\n  }\n\n  .fph-timeline-card h3 {\n    margin: 0 0 10px;\n    font-size: 22px;\n  }\n\n  .fph-timeline-card p {\n    margin: 0;\n  }\n\n  .fph-pro-tip {\n    margin-top: 22px;\n    padding: 22px 24px;\n    border-radius: 17px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-dark) 0%,\n      var(--fph-teal) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-pro-tip p {\n    margin: 0;\n    color: var(--fph-white);\n  }\n\n  .fph-safety-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 27px;\n  }\n\n  .fph-safety-card {\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n  }\n\n  .fph-safety-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-teal);\n    font-size: 22px;\n  }\n\n  .fph-safety-card p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-warning {\n    margin-top: 22px;\n    padding: 25px;\n    border: 1px solid #efc49c;\n    border-radius: 18px;\n    background: var(--fph-orange-light);\n  }\n\n  .fph-warning h3 {\n    margin: 0 0 10px;\n    color: #a84b06;\n    font-size: 22px;\n  }\n\n  .fph-warning p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-policy-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 26px;\n  }\n\n  .fph-policy-card {\n    padding: 27px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-light);\n  }\n\n  .fph-policy-card h3 {\n    margin: 0 0 11px;\n    color: var(--fph-dark);\n    font-size: 22px;\n  }\n\n  .fph-policy-card a {\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-policy-card a:hover {\n    text-decoration: underline;\n  }\n\n  .fph-faq {\n    display: grid;\n    gap: 12px;\n    margin-top: 27px;\n  }\n\n  .fph-faq details {\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 15px;\n    background: var(--fph-white);\n  }\n\n  .fph-faq summary {\n    position: relative;\n    padding: 19px 58px 19px 21px;\n    color: var(--fph-dark);\n    font-weight: 750;\n    cursor: pointer;\n    list-style: none;\n  }\n\n  .fph-faq summary::-webkit-details-marker {\n    display: none;\n  }\n\n  .fph-faq summary::after {\n    content: \"+\";\n    position: absolute;\n    top: 50%;\n    right: 21px;\n    color: var(--fph-teal);\n    font-size: 27px;\n    line-height: 1;\n    transform: translateY(-50%);\n  }\n\n  .fph-faq details[open] summary::after {\n    content: \"−\";\n  }\n\n  .fph-faq details[open] summary {\n    background: var(--fph-teal-light);\n  }\n\n  .fph-faq-answer {\n    padding: 0 21px 20px;\n    color: var(--fph-muted);\n  }\n\n  .fph-faq-answer p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-bottom-line {\n    padding: 30px;\n    border-radius: 20px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-bottom-line h2,\n  .fph-bottom-line p {\n    color: var(--fph-white);\n  }\n\n  .fph-bottom-line h2 {\n    margin: 0 0 15px;\n    font-size: 32px;\n  }\n\n  .fph-bottom-line p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-related-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 27px;\n  }\n\n  .fph-related-card {\n    display: flex;\n    flex-direction: column;\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n    box-shadow: 0 7px 24px rgba(15, 42, 70, 0.05);\n  }\n\n  .fph-related-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-related-card p {\n    flex: 1;\n    color: var(--fph-muted);\n  }\n\n  .fph-related-card a {\n    margin-top: auto;\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-related-card a:hover {\n    text-decoration: underline;\n  }\n\n  .fph-browse-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 20px;\n  }\n\n  .fph-browse-card {\n    padding: 26px;\n    border-radius: 18px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card:nth-child(2) {\n    background: linear-gradient(\n      135deg,\n      var(--fph-orange) 0%,\n      #f09a47 100%\n    );\n  }\n\n  .fph-browse-card h3,\n  .fph-browse-card p,\n  .fph-browse-card a {\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card h3 {\n    margin: 0 0 9px;\n    font-size: 22px;\n  }\n\n  .fph-browse-card a {\n    font-weight: 800;\n  }\n\n  .fph-image-note {\n    margin-top: 40px;\n    padding: 16px 20px;\n    border: 1px dashed var(--fph-border);\n    border-radius: 14px;\n    background: #fafbfc;\n    text-align: center;\n    font-weight: 700;\n  }\n\n  .fph-verification {\n    margin-top: 30px;\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 20px;\n    background: var(--fph-white);\n  }\n\n  .fph-verification-header {\n    padding: 25px;\n    background: var(--fph-dark);\n    color: var(--fph-white);\n  }\n\n  .fph-verification-header h2 {\n    margin: 0 0 7px;\n    color: var(--fph-white);\n    font-size: 29px;\n  }\n\n  .fph-verification-header p {\n    margin: 0;\n    color: rgba(255, 255, 255, 0.88);\n  }\n\n  .fph-verification-body {\n    padding: 27px;\n  }\n\n  .fph-verification-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin: 24px 0;\n  }\n\n  .fph-verification-card {\n    padding: 23px;\n    border: 1px solid #cfe2df;\n    border-radius: 16px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-verification-card h3 {\n    margin: 0 0 9px;\n    color: var(--fph-teal);\n    font-size: 20px;\n  }\n\n  .fph-verification-card p {\n    margin: 0;\n  }\n\n  .fph-contact-link {\n    color: var(--fph-orange);\n    font-weight: 750;\n  }\n\n  .fph-educational-note {\n    margin-top: 24px;\n    padding: 20px 22px;\n    border-radius: 15px;\n    background: #eef3f7;\n    color: #42566d;\n    font-size: 15px;\n  }\n\n  .fph-reviewed {\n    margin-top: 18px;\n    color: var(--fph-muted);\n    font-size: 14px;\n  }\n\n  @media (max-width: 1050px) {\n    .fph-comparison-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n\n    .fph-benefits-grid,\n    .fph-related-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n  }\n\n  @media (max-width: 749px) {\n    .fph-product-copy {\n      padding-right: 18px;\n      padding-left: 18px;\n      font-size: 16px;\n      line-height: 1.65;\n    }\n\n    .fph-product-title {\n      font-size: 32px;\n    }\n\n    .fph-section {\n      padding: 39px 0;\n    }\n\n    .fph-section-title {\n      font-size: 28px;\n    }\n\n    .fph-toc-label {\n      display: none;\n    }\n\n    .fph-toc a {\n      min-height: 44px;\n      padding: 9px 17px;\n      font-size: 15px;\n    }\n\n    .fph-glance-row {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-glance-label {\n      padding-bottom: 7px;\n    }\n\n    .fph-glance-value {\n      padding-top: 7px;\n    }\n\n    .fph-two-column,\n    .fph-comparison-grid,\n    .fph-benefits-grid,\n    .fph-timeline,\n    .fph-safety-grid,\n    .fph-policy-grid,\n    .fph-related-grid,\n    .fph-browse-grid,\n    .fph-verification-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-step {\n      grid-template-columns: 48px minmax(0, 1fr);\n      gap: 14px;\n      padding: 20px;\n    }\n  }\n\n  @media (prefers-reduced-motion: reduce) {\n    .fph-product-copy *,\n    .fph-product-copy *::before,\n    .fph-product-copy *::after {\n      transition: none !important;\n      animation: none !important;\n      scroll-behavior: auto !important;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"fph-product-copy\"\u003e\n\u003csection class=\"fph-section\" id=\"overview\"\u003e\n\u003ch1 class=\"fph-product-title\"\u003eFish Flucon (Fix Flucon) Fluconazole 100mg Fish Antifungal\u003c\/h1\u003e\n\u003cnav class=\"fph-toc\" aria-label=\"On this page\"\u003e\u003cspan class=\"fph-toc-label\"\u003eOn this page:\u003c\/span\u003e \u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e \u003ca href=\"#fish-flucon-vs-fix-flucon\"\u003eFish Flucon vs Fix Flucon\u003c\/a\u003e \u003ca href=\"#benefits\"\u003eBenefits\u003c\/a\u003e \u003ca href=\"#usage\"\u003eUsage\u003c\/a\u003e \u003ca href=\"#how-it-works\"\u003eHow It Works\u003c\/a\u003e \u003ca href=\"#safety\"\u003eSafety\u003c\/a\u003e \u003ca href=\"#shipping\"\u003eShipping\u003c\/a\u003e \u003ca href=\"#faq\"\u003eFAQ\u003c\/a\u003e \u003ca href=\"#bottom-line\"\u003eBottom Line\u003c\/a\u003e\u003c\/nav\u003e\n\u003cdiv class=\"fph-glance\"\u003e\n\u003cdiv class=\"fph-glance-heading\"\u003eFix Flucon at a Glance\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eFor\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eOrnamental freshwater and saltwater aquarium fish\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eHelps with\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eSusceptible topical and systemic fungal problems, including Saprolegnia-type growth and Ichthyophonus concerns\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eForm\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eDissolvable tablets, 100 mg each\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eCount size\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003e10-count bottle\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eTreatment type\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFish antifungal treatment for aquarium use\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eManufacturer\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eAqua Soma Labs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"fph-lead\"\u003e\u003cstrong\u003eFish Flucon (Fix Flucon)\u003c\/strong\u003e is a fluconazole-based antifungal treatment formulated for ornamental aquarium fish.\u003c\/p\u003e\n\u003cp\u003eEach tablet contains 100 mg of fluconazole and is designed to dissolve in treatment water for aquarium fish showing signs consistent with a susceptible fungal problem.\u003c\/p\u003e\n\u003cp\u003eFix Flucon is commonly considered for topical fungal growths visible on the skin, fins, mouth area, or damaged tissue, as well as certain systemic fungal concerns affecting ornamental fish.\u003c\/p\u003e\n\u003cp\u003eAquarium keepers may recognize this type of product under older names such as Fish Flucon, Fish Fluconazole, Aqua Flucon, or aquarium fluconazole.\u003c\/p\u003e\n\u003cp\u003eFix Flucon is the current Aqua Soma Labs version supplied in a clearly labeled 100 mg tablet strength.\u003c\/p\u003e\n\u003cp\u003eFluconazole is an antifungal ingredient rather than an antibacterial. It is intended for susceptible fungal organisms and should not be expected to treat ordinary bacterial fin rot, columnaris, parasites, viral disease, or poor-water-quality problems.\u003c\/p\u003e\n\u003cp\u003eFungal growth often appears after an injury, stress event, poor water conditions, or another disease has damaged the fish's protective skin and slime coat.\u003c\/p\u003e\n\u003cp\u003eCorrecting water quality, reducing stress, maintaining suitable temperature, and identifying the underlying cause remain essential parts of treatment.\u003c\/p\u003e\n\u003cp\u003eBegin by moving the affected fish to a separate hospital or quarantine tank whenever possible.\u003c\/p\u003e\n\u003cdiv class=\"fph-two-column\"\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eVisible External Signs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWhite or gray cotton-like growth on the skin\u003c\/li\u003e\n\u003cli\u003eFuzzy growth around damaged fins or wounds\u003c\/li\u003e\n\u003cli\u003eFungal growth on an injured mouth area\u003c\/li\u003e\n\u003cli\u003ePale or discolored patches that appear raised or wool-like\u003c\/li\u003e\n\u003cli\u003eFungal growth around an ulcer or damaged scale\u003c\/li\u003e\n\u003cli\u003eFin deterioration accompanied by visible fuzzy material\u003c\/li\u003e\n\u003cli\u003eEgg fungus in a separate breeding or treatment setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003ePossible Systemic or Advanced Signs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePersistent loss of appetite\u003c\/li\u003e\n\u003cli\u003eProgressive weight loss\u003c\/li\u003e\n\u003cli\u003eReduced activity or unusual hiding\u003c\/li\u003e\n\u003cli\u003eLoss of normal coloration\u003c\/li\u003e\n\u003cli\u003eAbnormal or circular swimming\u003c\/li\u003e\n\u003cli\u003eBulging eyes associated with a wider health problem\u003c\/li\u003e\n\u003cli\u003eRecurring lesions that do not improve after water correction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eImportant distinction:\u003c\/strong\u003e A cotton-like appearance is not always a true fungal infection. Columnaris and some bacterial conditions can resemble fungus. Confirm the likely cause before choosing an antifungal treatment.\u003c\/div\u003e\n\u003cp style=\"margin-top: 28px;\"\u003eUse Fix Flucon alongside stable water conditions, strong aeration, suitable nutrition, and careful daily observation.\u003c\/p\u003e\n\u003cp\u003eWhen the cause is uncertain, or the fish is deteriorating rapidly, consult an aquatic veterinarian or experienced fish-health professional.\u003c\/p\u003e\n\u003cdiv class=\"fph-order-note\"\u003e\n\u003cp\u003e\u003cstrong\u003eOrder online:\u003c\/strong\u003e In-stock orders ship from our United States warehouse according to the current store processing and shipping schedule.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e Fix Flucon is intended for ornamental aquarium fish only. It is not intended for humans or animals raised for food.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"fish-flucon-vs-fix-flucon\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFish Flucon vs Fix Flucon: What Changed?\u003c\/h2\u003e\n\u003cp\u003eAquarium keepers who previously purchased Fish Flucon, Fish Fluconazole, or similar aquarium fluconazole products can use the comparison below to understand the current Fix Flucon presentation.\u003c\/p\u003e\n\u003cdiv class=\"fph-comparison-grid\"\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eActive ingredient\u003c\/span\u003e\n\u003ch3\u003eFluconazole 100 mg\u003c\/h3\u003e\n\u003cp\u003eEach Fix Flucon tablet provides 100 mg of fluconazole for aquarium antifungal use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eCurrent brand\u003c\/span\u003e\n\u003ch3\u003eAqua Soma Labs Fix Line\u003c\/h3\u003e\n\u003cp\u003eFix Flucon is supplied under the Aqua Soma Labs Fix product line with updated branding and packaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eTablet format\u003c\/span\u003e\n\u003ch3\u003eDissolvable Treatment Form\u003c\/h3\u003e\n\u003cp\u003eThe tablet can be pre-dissolved in aquarium water before being distributed throughout a hospital tank.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eBottle size\u003c\/span\u003e\n\u003ch3\u003e10-Count Supply\u003c\/h3\u003e\n\u003cp\u003eThe compact bottle is suited to a dedicated hospital tank, smaller aquarium setup, or short label-directed treatment plan.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"benefits\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eBenefits of Fix Flucon for Aquarium Fish\u003c\/h2\u003e\n\u003cdiv class=\"fph-benefits-grid\"\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch3\u003eTargeted Antifungal Ingredient\u003c\/h3\u003e\n\u003cp\u003eFluconazole is formulated to target susceptible fungal organisms rather than bacteria, viruses, or parasites.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch3\u003eExternal and Systemic Fungal Support\u003c\/h3\u003e\n\u003cp\u003eFix Flucon may be considered for visible fungal growth and certain deeper fungal concerns when the suspected organism is sensitive to fluconazole.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch3\u003eConsistent 100 mg Tablets\u003c\/h3\u003e\n\u003cp\u003eEach tablet supplies a fixed 100 mg amount, helping aquarium keepers calculate treatment according to the actual hospital-tank water volume.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch3\u003eEasy to Pre-Dissolve\u003c\/h3\u003e\n\u003cp\u003eTablets can be mixed in a clean cup of aquarium water before being added evenly throughout the treatment system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e05\u003c\/div\u003e\n\u003ch3\u003eUseful for Hospital Tanks\u003c\/h3\u003e\n\u003cp\u003eA separate treatment tank allows closer observation while protecting healthy fish, sensitive invertebrates, and the display aquarium.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e06\u003c\/div\u003e\n\u003ch3\u003eFreshwater and Marine Treatment Setups\u003c\/h3\u003e\n\u003cp\u003eFix Flucon may be used in an appropriately prepared freshwater or saltwater hospital tank when consistent with the current label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e07\u003c\/div\u003e\n\u003ch3\u003eClear Antifungal Purpose\u003c\/h3\u003e\n\u003cp\u003eThe product provides an antifungal option for situations where visible growth or other signs suggest fungus rather than a bacterial or parasitic condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"usage\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eUsage Guidelines \u0026amp; Instructions\u003c\/h2\u003e\n\u003cdiv class=\"fph-summary-box\"\u003e\n\u003ch3\u003eQuick Usage Summary\u003c\/h3\u003e\n\u003cp\u003ePre-dissolve one 100 mg tablet for every 5 gallons or approximately 19 litres of treatment water.\u003c\/p\u003e\n\u003cp\u003eAdminister once every 24 hours for five consecutive days according to the current product directions.\u003c\/p\u003e\n\u003cp\u003eDiscontinue treatment and reassess the diagnosis if no improvement is noted after five days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-steps\"\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e1\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eConfirm That the Problem Appears Fungal\u003c\/h3\u003e\n\u003cp\u003eLook for raised white, gray, or cotton-like growth attached to damaged skin, fins, wounds, or eggs.\u003c\/p\u003e\n\u003cp\u003eDo not assume every white patch is fungus. Columnaris, excess mucus, parasites, and damaged tissue can appear similar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e2\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003ePrepare a Separate Treatment Tank\u003c\/h3\u003e\n\u003cp\u003eMove affected fish to a hospital or quarantine tank whenever possible.\u003c\/p\u003e\n\u003cp\u003eMaintain stable temperature, strong aeration, and suitable filtration without activated carbon.\u003c\/p\u003e\n\u003cp\u003eSwitch off ultraviolet sterilization during treatment unless the current product label directs otherwise.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e3\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eMeasure the Actual Water Volume\u003c\/h3\u003e\n\u003cp\u003eCalculate the amount of water actually being treated rather than relying only on the aquarium's advertised capacity.\u003c\/p\u003e\n\u003cp\u003eSubstrate, rocks, decorations, equipment, and the fill level reduce the real water volume.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e4\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003ePre-Dissolve the Tablet\u003c\/h3\u003e\n\u003cp\u003ePlace the required tablet amount in a clean cup containing aquarium water.\u003c\/p\u003e\n\u003cp\u003eMix thoroughly, then distribute the prepared solution evenly throughout the treatment tank.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e5\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eAdminister Once Every 24 Hours\u003c\/h3\u003e\n\u003cp\u003eUse one 100 mg tablet for every 5 gallons or approximately 19 litres of actual treatment water.\u003c\/p\u003e\n\u003cp\u003eRepeat once daily according to the current label directions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e6\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eContinue for Five Consecutive Days\u003c\/h3\u003e\n\u003cp\u003eContinue treatment for five consecutive days while checking the fungal growth, appetite, activity, breathing, and water parameters.\u003c\/p\u003e\n\u003cp\u003eDo not extend treatment beyond the current label directions without aquatic veterinary guidance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e7\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eStop if There Is No Improvement\u003c\/h3\u003e\n\u003cp\u003eDiscontinue use if no improvement is noted after five days.\u003c\/p\u003e\n\u003cp\u003eReassess the diagnosis because the condition may be bacterial, parasitic, viral, environmental, or resistant to the selected treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eFix Flucon Amounts by Aquarium Size\u003c\/h3\u003e\n\u003cdiv class=\"fph-table-wrapper\"\u003e\n\u003ctable class=\"fph-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTank volume\u003c\/th\u003e\n\u003cth\u003eFluconazole per use\u003c\/th\u003e\n\u003cth\u003e100 mg tablets\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 gallons (19 L)\u003c\/td\u003e\n\u003ctd\u003e100 mg\u003c\/td\u003e\n\u003ctd\u003e1 tablet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 gallons (38 L)\u003c\/td\u003e\n\u003ctd\u003e200 mg\u003c\/td\u003e\n\u003ctd\u003e2 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 gallons (76 L)\u003c\/td\u003e\n\u003ctd\u003e400 mg\u003c\/td\u003e\n\u003ctd\u003e4 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30 gallons (114 L)\u003c\/td\u003e\n\u003ctd\u003e600 mg\u003c\/td\u003e\n\u003ctd\u003e6 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40 gallons (151 L)\u003c\/td\u003e\n\u003ctd\u003e800 mg\u003c\/td\u003e\n\u003ctd\u003e8 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eThese figures scale the current Fix Flucon listing direction of one pre-dissolved 100 mg tablet per 5 gallons, equal to approximately 20 mg per gallon. Dose according to the actual treatment-water volume, not the number or size of the fish. Always check the bottle you receive because packaging and label directions can change.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat to Expect During Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-timeline\"\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 1 to 2\u003c\/h3\u003e\n\u003cp\u003eThe visible growth may remain present while treatment begins. Fish may hide or eat less because of the illness or transfer to a hospital tank.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 3 to 4\u003c\/h3\u003e\n\u003cp\u003eLook for growth that stops spreading, appears reduced, or begins separating from damaged tissue. Appetite and activity may gradually improve.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDay 5\u003c\/h3\u003e\n\u003cp\u003eComplete the label-directed course and reassess. Stop treatment and seek professional guidance if there is no improvement or the fish become worse.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat You Need for Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003cul\u003e\n\u003cli\u003eA separate hospital or quarantine tank\u003c\/li\u003e\n\u003cli\u003eA suitable aquarium heater\u003c\/li\u003e\n\u003cli\u003eAn air stone or established sponge filter\u003c\/li\u003e\n\u003cli\u003eAn ammonia and nitrite test kit\u003c\/li\u003e\n\u003cli\u003eA suitable water conditioner or dechlorinator\u003c\/li\u003e\n\u003cli\u003eA small net for gentle fish transfer\u003c\/li\u003e\n\u003cli\u003eA clean cup for pre-dissolving the tablets\u003c\/li\u003e\n\u003cli\u003eActivated carbon for use after treatment, when appropriate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-pro-tip\"\u003e\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Correct the underlying cause while treating the fungus. Check for sharp decorations, fighting, parasites, poor water quality, temperature stress, and injuries that may have damaged the fish's protective skin.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"how-it-works\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eHow Fix Flucon Works\u003c\/h2\u003e\n\u003cp class=\"fph-lead\"\u003eEach Fix Flucon tablet contains 100 mg of fluconazole, a triazole antifungal ingredient.\u003c\/p\u003e\n\u003cp\u003eFluconazole interferes with the production of important sterol components used by susceptible fungal cell membranes.\u003c\/p\u003e\n\u003cp\u003eDisrupting this process can limit fungal growth and give affected tissue an opportunity to recover when the organism is susceptible and the aquarium environment is stable.\u003c\/p\u003e\n\u003cp\u003eFix Flucon is intended for fungal concerns. It does not replace antibacterial treatments for bacterial infections and does not target parasites or viruses.\u003c\/p\u003e\n\u003cp\u003eTreatment success depends on correct identification of the problem, appropriate water conditions, the health of the fish, and whether the organism is sensitive to fluconazole.\u003c\/p\u003e\n\u003cp\u003eStandard inactive tablet ingredients help maintain tablet stability and allow the product to disperse after it is pre-dissolved in aquarium water.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"safety\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eSafety and Tank Notes\u003c\/h2\u003e\n\u003cp\u003eUse Fix Flucon only according to the current product label and monitor fish and water quality closely during treatment.\u003c\/p\u003e\n\u003cp\u003eIncorrect amounts, prolonged treatment, unnecessary repeat courses, or combining products may increase stress and make it harder to identify the original cause.\u003c\/p\u003e\n\u003cdiv class=\"fph-safety-grid\"\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003ePossible Fish Reactions\u003c\/h3\u003e\n\u003cp\u003eSick fish may temporarily hide, eat less, or appear lethargic during treatment.\u003c\/p\u003e\n\u003cp\u003eThese signs may result from the underlying illness, transfer stress, water-quality changes, or treatment sensitivity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eStop Treatment If\u003c\/h3\u003e\n\u003cp\u003eStop treatment if fish develop severe weakness, rapid gill movement, surface gasping, loss of balance, rolling, or a rapid decline.\u003c\/p\u003e\n\u003cp\u003eIncrease aeration, perform an appropriate partial water change, and seek aquatic veterinary guidance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eWater Quality\u003c\/h3\u003e\n\u003cp\u003eTest ammonia and nitrite regularly and maintain stable temperature and oxygen levels.\u003c\/p\u003e\n\u003cp\u003ePoor water quality can worsen fungal growth and prevent damaged tissue from recovering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eFiltration During Treatment\u003c\/h3\u003e\n\u003cp\u003eRemove activated carbon and other chemical filtration media during treatment because they may reduce the amount of product available in the water.\u003c\/p\u003e\n\u003cp\u003eSwitch off UV sterilization unless the current label directs otherwise.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eInvertebrates and Reef Systems\u003c\/h3\u003e\n\u003cp\u003eTreat affected fish in a separate hospital tank rather than exposing shrimp, snails, corals, and other sensitive invertebrates.\u003c\/p\u003e\n\u003cp\u003eSensitivity may vary between species and aquarium systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eDo Not Mix Treatments\u003c\/h3\u003e\n\u003cp\u003eDo not combine Fix Flucon with antibacterial, antiparasitic, or other antifungal treatments unless the product labels permit it or a qualified professional recommends the combination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-warning\"\u003e\n\u003ch3\u003eImportant Warnings \u0026amp; Precautions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAquarium use only:\u003c\/strong\u003e Fix Flucon is intended for ornamental aquarium fish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot for human use:\u003c\/strong\u003e Do not ingest the tablets or use them for human treatment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot for food fish:\u003c\/strong\u003e Do not use on fish or other animals intended for human consumption.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Keep the bottle tightly closed in a cool, dry location protected from direct sunlight, excessive heat, and moisture.\u003c\/p\u003e\n\u003cp\u003eKeep out of reach of children and animals.\u003c\/p\u003e\n\u003cp\u003eAlways follow the directions and warnings printed on the bottle received with the order.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"shipping\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cdiv class=\"fph-policy-grid\"\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eShipping Policy\u003c\/h3\u003e\n\u003cp\u003eOrders ship from our United States warehouse through the available USPS or UPS services.\u003c\/p\u003e\n\u003cp\u003eProcessing times, shipping prices, and estimated delivery dates are shown according to the current store policy and checkout options.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/shipping-policy\"\u003eReview Shipping Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eRefund Policy\u003c\/h3\u003e\n\u003cp\u003eIf there is an issue with the order, eligible products may qualify for a return or exchange according to the current store guidelines.\u003c\/p\u003e\n\u003cp\u003eReview the full refund policy before returning any product.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/refund-policy\"\u003eReview Refund Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"faq\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"fph-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is Fix Flucon used for?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flucon contains fluconazole and is intended for susceptible topical and systemic fungal problems affecting ornamental aquarium fish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the active ingredient in Fix Flucon?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eEach tablet contains 100 mg of fluconazole.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between Fish Flucon and Fix Flucon?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFish Flucon is a commonly used name for aquarium fluconazole products. Fix Flucon is the current Aqua Soma Labs product supplied in a 100 mg tablet strength.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow many tablets are in a bottle?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThis Fix Flucon product is supplied in a 10-count bottle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat kinds of fungal problems may Fix Flucon help manage?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flucon may be considered for susceptible topical or systemic fungal concerns, including Saprolegnia-type growth and certain Ichthyophonus-related problems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow can I tell whether the white growth is fungal?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFungal growth often appears raised, fuzzy, cotton-like, or wool-like and may develop on injured skin, fins, wounds, or eggs.\u003c\/p\u003e\n\u003cp\u003eBacterial columnaris, excess mucus, parasites, and damaged tissue can look similar, so diagnosis is important.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Flucon treat cotton-mouth disease?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eNot every cotton-like mouth lesion is fungal. Columnaris is a bacterial condition that may appear cotton-like and generally requires a different treatment approach.\u003c\/p\u003e\n\u003cp\u003eUse Fix Flucon only when the problem is reasonably suspected to be fungal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Flucon treat bacterial fin rot?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flucon is an antifungal product. It should not be expected to treat ordinary bacterial fin rot unless a separate susceptible fungal problem is also present.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Flucon treat ich, flukes, or other parasites?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eNo. Fluconazole is an antifungal ingredient and is not a standard treatment for ich, flukes, worms, or other parasitic conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow much Fix Flucon should I use?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe current Fix Flucon listing direction is one pre-dissolved 100 mg tablet per 5 gallons or approximately 19 litres of actual treatment water.\u003c\/p\u003e\n\u003cp\u003eFollow the bottle label received with the product because directions may change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long should I treat with Fix Flucon?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe current product direction describes treatment once every 24 hours for five consecutive days.\u003c\/p\u003e\n\u003cp\u003eDiscontinue use and reassess the diagnosis if no improvement is noted after five days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eShould I pre-dissolve the tablet?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eYes. Pre-dissolve the required tablet amount in a clean cup of aquarium water, then distribute the solution evenly throughout the treatment tank.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eShould I use a hospital tank?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eA separate hospital or quarantine tank is strongly recommended. It allows closer observation and limits exposure of healthy fish, plants, invertebrates, and the main aquarium system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need to remove activated carbon?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eRemove activated carbon and other chemical filtration media during treatment because they may reduce the amount of fluconazole available in the water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eShould I switch off the UV sterilizer?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eSwitch off UV sterilization during treatment unless the current product label specifically directs otherwise.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Flucon be used in saltwater aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Flucon may be used in an appropriately prepared saltwater hospital tank when consistent with the current label.\u003c\/p\u003e\n\u003cp\u003eAvoid treating a reef display containing corals or sensitive invertebrates when a separate treatment system is available.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Flucon safe for shrimp, snails, and corals?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eSensitivity can vary between species and systems. Treat affected fish separately rather than exposing shrimp, snails, corals, and other invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I combine Fix Flucon with other treatments?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDo not combine Fix Flucon with other antifungal, antibacterial, or antiparasitic products unless the labels permit the combination or a qualified aquatic professional recommends it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat should I do if the fish are not improving?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDiscontinue treatment if no improvement appears after five days.\u003c\/p\u003e\n\u003cp\u003eCheck water quality, reconsider whether the condition is truly fungal, and seek aquatic veterinary guidance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow should I store Fix Flucon?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eStore the tablets in their original, tightly closed bottle in a cool, dry location protected from direct sunlight, heat, and moisture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Flucon be used for humans or household pets?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eNo. This product is intended for ornamental aquarium fish. It is not intended for humans, dogs, cats, birds, livestock, or food-producing animals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"bottom-line\"\u003e\n\u003cdiv class=\"fph-bottom-line\"\u003e\n\u003ch2\u003eBottom Line\u003c\/h2\u003e\n\u003cp\u003eFix Flucon is a 100 mg fluconazole antifungal tablet for susceptible topical and systemic fungal problems affecting ornamental aquarium fish.\u003c\/p\u003e\n\u003cp\u003eIt may be considered for visible cotton-like fungal growth and certain deeper fungal concerns when the organism is sensitive to fluconazole.\u003c\/p\u003e\n\u003cp\u003eThe current listing direction is one pre-dissolved tablet per 5 gallons of actual treatment water, administered once daily for five consecutive days.\u003c\/p\u003e\n\u003cp\u003eDiscontinue treatment if no improvement appears after five days and reassess whether the condition is truly fungal.\u003c\/p\u003e\n\u003cp\u003eFix Flucon does not treat bacterial, viral, or parasitic disease and is not intended for humans or food-producing animals.\u003c\/p\u003e\n\u003cp\u003eA separate hospital tank, stable water quality, strong aeration, and correction of the underlying injury or stressor are essential parts of responsible treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eMore Fish Treatments\u003c\/h2\u003e\n\u003cdiv class=\"fph-related-grid\"\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Mox (Amoxicillin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eAn antibacterial treatment for certain suspected bacterial concerns, including fin rot, wounds, ulcers, and dropsy-like signs.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-mox\"\u003eShop Fix Mox → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zole (Metronidazole) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment used for certain protozoal and anaerobic-sensitive concerns, including Hexamita-related symptoms.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zole\"\u003eShop Fix Zole → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Doxy (Doxycycline) 100 mg\u003c\/h3\u003e\n\u003cp\u003eAn antibacterial treatment considered for columnaris-type signs and certain respiratory or systemic bacterial concerns.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-doxy\"\u003eShop Fix Doxy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zithro (Azithromycin) 250 mg\u003c\/h3\u003e\n\u003cp\u003eAn antibacterial treatment considered for fin damage, gill concerns, columnaris-type signs, and other susceptible bacterial problems.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zithro\"\u003eShop Fix Zithro → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Cin (Clindamycin) 150 mg\u003c\/h3\u003e\n\u003cp\u003eAn antibacterial treatment used for certain skin, mouth, wound, and soft-tissue concerns in ornamental aquarium fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-cin\"\u003eShop Fix Cin → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Sulfa (SMZ\/TMP) 960 mg\u003c\/h3\u003e\n\u003cp\u003eA dual-ingredient antibacterial treatment used for a range of suspected bacterial concerns in ornamental aquarium fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-sulfa\"\u003eShop Fix Sulfa → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Pen (Penicillin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA penicillin treatment considered for certain susceptible Gram-positive bacterial concerns in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-pen\"\u003eShop Fix Pen → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flex (Cephalexin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eAn antibacterial treatment used for certain fin, skin, wound, and soft-tissue concerns in ornamental aquarium fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flex\"\u003eShop Fix Flex → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flox (Ciprofloxacin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eAn antibacterial treatment considered for persistent fin damage, ulcers, columnaris-type patches, and septicemia-like signs.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flox\"\u003eShop Fix Flox → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-grid\"\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eBrowse All Fish Treatments\u003c\/h3\u003e\n\u003cp\u003eExplore the complete Fish Treatments Collection for antifungal, antibacterial, and related aquarium-care products.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/collections\/fish-antibiotics\"\u003eExplore the Collection → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eGuides and Care Tips\u003c\/h3\u003e\n\u003cp\u003eVisit the aquarium-care blog for practical treatment guides, water-quality advice, quarantine information, and fish-health tips.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/blogs\/fish-antibiotics\"\u003eVisit the Blog → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-image-note\"\u003eTap the product image above to expand and zoom 🔍\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003cdiv class=\"fph-verification\"\u003e\n\u003cdiv class=\"fph-verification-header\"\u003e\n\u003ch2\u003eTransparency \u0026amp; Verification\u003c\/h2\u003e\n\u003cp\u003eHow Product Information Is Verified\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eWho is responsible for this page:\u003c\/strong\u003e The store editorial team responsible for reviewing and maintaining product information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVerification snapshot:\u003c\/strong\u003e This page was prepared from available product specifications and current Fix Flucon listing information and should be checked against the physical bottle label before publishing.\u003c\/p\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eHow We Verify Product Information\u003c\/h3\u003e\n\u003cdiv class=\"fph-verification-grid\"\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eLabel-First Accuracy\u003c\/h3\u003e\n\u003cp\u003eThe physical bottle label is treated as the primary source for the amount, treatment duration, storage instructions, and warnings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eSpecification Validation\u003c\/h3\u003e\n\u003cp\u003eThe active ingredient, tablet strength, bottle count, intended species, and manufacturer information are checked against available product specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eConsistency Checks\u003c\/h3\u003e\n\u003cp\u003eProduct content is reviewed for consistent strength information, treatment directions, storage details, and safety language throughout the page.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eUpdates\u003c\/h3\u003e\n\u003cp\u003eThe page should be updated whenever the product label, packaging, bottle count, manufacturer information, or directions change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eWhat we do not do:\u003c\/strong\u003e We do not present an antifungal product as a treatment for every white patch or aquarium disease, and we do not add instructions that conflict with the current bottle label.\u003c\/div\u003e\n\u003cp style=\"margin-top: 25px;\"\u003eSee something that does not match the product received? Please \u003cstrong\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003ca href=\"%20https:\/\/www.calvetsupply.com\/pages\/contact-us\" style=\"color: rgb(255, 128, 0);\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e so the information can be reviewed and updated.\u003c\/p\u003e\n\u003cdiv class=\"fph-educational-note\"\u003e\n\u003cstrong\u003eEducational use:\u003c\/strong\u003e This content is provided for general informational purposes only and is not a substitute for diagnosis or advice from a qualified aquatic veterinarian.\u003c\/div\u003e\n\u003cdiv class=\"fph-reviewed\"\u003eLast reviewed: July 10, 2026\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Aqua Soma Labs","offers":[{"title":"Default Title","offer_id":45972965654562,"sku":"903213","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/7008\/3874\/files\/FishFlucon.png?v=1783911241"},{"product_id":"fish-pen","title":"Fish Pen (Fix Pen) Penicillin 500mg Fish Antibacterial","description":"\u003cstyle\u003e\n  .fph-product-copy {\n    --fph-orange: #e37111;\n    --fph-teal: #148d85;\n    --fph-green: #64ad82;\n    --fph-dark: #09213f;\n    --fph-text: #24374e;\n    --fph-muted: #64748b;\n    --fph-border: #dce3eb;\n    --fph-light: #f5f8fa;\n    --fph-teal-light: #eef8f6;\n    --fph-orange-light: #fff6ed;\n    --fph-white: #ffffff;\n\n    width: 100%;\n    max-width: 1675px;\n    margin: 0 auto;\n    padding-right: 40px;\n    padding-left: 40px;\n    color: var(--fph-text);\n    font-family: inherit;\n    font-size: 17px;\n    line-height: 1.7;\n    scroll-behavior: smooth;\n  }\n\n  .fph-product-copy,\n  .fph-product-copy * {\n    box-sizing: border-box;\n  }\n\n 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center;\n    justify-content: center;\n    width: 45px;\n    height: 45px;\n    margin-bottom: 18px;\n    border-radius: 50%;\n    background: var(--fph-orange);\n    color: var(--fph-white);\n    font-size: 15px;\n    font-weight: 800;\n  }\n\n  .fph-benefit-card:nth-child(2n) .fph-benefit-number {\n    background: var(--fph-teal);\n  }\n\n  .fph-benefit-card:nth-child(3n) .fph-benefit-number {\n    background: var(--fph-green);\n  }\n\n  .fph-benefit-card h3 {\n    margin: 0 0 11px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-benefit-card p {\n    margin: 0;\n    color: var(--fph-muted);\n  }\n\n  .fph-summary-box {\n    margin-bottom: 28px;\n    padding: 26px;\n    border-radius: 18px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-dark) 0%,\n      var(--fph-teal) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-summary-box h3,\n  .fph-summary-box p {\n    color: var(--fph-white);\n  }\n\n  .fph-summary-box h3 {\n    margin: 0 0 12px;\n    font-size: 23px;\n  }\n\n  .fph-summary-box p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-steps {\n    display: grid;\n    gap: 18px;\n  }\n\n  .fph-step {\n    display: grid;\n    grid-template-columns: 62px minmax(0, 1fr);\n    gap: 18px;\n    padding: 25px;\n    border: 1px solid #cfe2df;\n    border-radius: 18px;\n    background: #f1f9f7;\n  }\n\n  .fph-step-number {\n    display: flex;\n    align-items: center;\n    justify-content: center;\n    width: 48px;\n    height: 48px;\n    border-radius: 50%;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-size: 19px;\n    font-weight: 800;\n  }\n\n  .fph-step h3 {\n    margin: 2px 0 9px;\n    color: var(--fph-dark);\n    font-size: 22px;\n    line-height: 1.35;\n  }\n\n  .fph-step p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-table-wrapper {\n    margin-top: 30px;\n    overflow-x: auto;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n  }\n\n  .fph-table {\n    width: 100%;\n    min-width: 650px;\n    border-collapse: collapse;\n    background: var(--fph-white);\n  }\n\n  .fph-table th,\n  .fph-table td {\n    padding: 16px 19px;\n    border-bottom: 1px solid var(--fph-border);\n    text-align: left;\n    vertical-align: top;\n  }\n\n  .fph-table th {\n    background: var(--fph-teal);\n    color: var(--fph-white);\n    font-weight: 750;\n  }\n\n  .fph-table tr:nth-child(even) td {\n    background: #f7f9fa;\n  }\n\n  .fph-table tr:last-child td {\n    border-bottom: 0;\n  }\n\n  .fph-timeline {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 25px;\n  }\n\n  .fph-timeline-card {\n    padding: 25px;\n    border-radius: 18px;\n    background: var(--fph-teal);\n    color: var(--fph-white);\n  }\n\n  .fph-timeline-card:nth-child(2) {\n    background: var(--fph-green);\n  }\n\n  .fph-timeline-card:nth-child(3) {\n    background: var(--fph-orange);\n  }\n\n  .fph-timeline-card h3,\n  .fph-timeline-card p {\n    color: var(--fph-white);\n  }\n\n  .fph-timeline-card h3 {\n    margin: 0 0 10px;\n    font-size: 22px;\n  }\n\n  .fph-timeline-card p {\n    margin: 0;\n  }\n\n  .fph-pro-tip {\n    margin-top: 22px;\n    padding: 22px 24px;\n    border-radius: 17px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-dark) 0%,\n      var(--fph-teal) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-pro-tip p {\n    margin: 0;\n    color: var(--fph-white);\n  }\n\n  .fph-safety-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin-top: 27px;\n  }\n\n  .fph-safety-card {\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n  }\n\n  .fph-safety-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-teal);\n    font-size: 22px;\n  }\n\n  .fph-safety-card p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-warning {\n    margin-top: 22px;\n    padding: 25px;\n    border: 1px solid #efc49c;\n    border-radius: 18px;\n    background: var(--fph-orange-light);\n  }\n\n  .fph-warning h3 {\n    margin: 0 0 10px;\n    color: #a84b06;\n    font-size: 22px;\n  }\n\n  .fph-warning p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-policy-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 20px;\n    margin-top: 26px;\n  }\n\n  .fph-policy-card {\n    padding: 27px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-light);\n  }\n\n  .fph-policy-card h3 {\n    margin: 0 0 11px;\n    color: var(--fph-dark);\n    font-size: 22px;\n  }\n\n  .fph-policy-card a {\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-policy-card a:hover {\n    text-decoration: underline;\n  }\n\n  .fph-faq {\n    display: grid;\n    gap: 12px;\n    margin-top: 27px;\n  }\n\n  .fph-faq details {\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 15px;\n    background: var(--fph-white);\n  }\n\n  .fph-faq summary {\n    position: relative;\n    padding: 19px 58px 19px 21px;\n    color: var(--fph-dark);\n    font-weight: 750;\n    cursor: pointer;\n    list-style: none;\n  }\n\n  .fph-faq summary::-webkit-details-marker {\n    display: none;\n  }\n\n  .fph-faq summary::after {\n    content: \"+\";\n    position: absolute;\n    top: 50%;\n    right: 21px;\n    color: var(--fph-teal);\n    font-size: 27px;\n    line-height: 1;\n    transform: translateY(-50%);\n  }\n\n  .fph-faq details[open] summary::after {\n    content: \"−\";\n  }\n\n  .fph-faq details[open] summary {\n    background: var(--fph-teal-light);\n  }\n\n  .fph-faq-answer {\n    padding: 0 21px 20px;\n    color: var(--fph-muted);\n  }\n\n  .fph-faq-answer p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-bottom-line {\n    padding: 30px;\n    border-radius: 20px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-bottom-line h2,\n  .fph-bottom-line p {\n    color: var(--fph-white);\n  }\n\n  .fph-bottom-line h2 {\n    margin: 0 0 15px;\n    font-size: 32px;\n  }\n\n  .fph-bottom-line p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-related-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 27px;\n  }\n\n  .fph-related-card {\n    display: flex;\n    flex-direction: column;\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n    box-shadow: 0 7px 24px rgba(15, 42, 70, 0.05);\n  }\n\n  .fph-related-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-related-card p {\n    flex: 1;\n    color: var(--fph-muted);\n  }\n\n  .fph-related-card a {\n    margin-top: auto;\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-related-card a:hover {\n    text-decoration: underline;\n  }\n\n  .fph-browse-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 20px;\n  }\n\n  .fph-browse-card {\n    padding: 26px;\n    border-radius: 18px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card:nth-child(2) {\n    background: linear-gradient(\n      135deg,\n      var(--fph-orange) 0%,\n      #f09a47 100%\n    );\n  }\n\n  .fph-browse-card h3,\n  .fph-browse-card p,\n  .fph-browse-card a {\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card h3 {\n    margin: 0 0 9px;\n    font-size: 22px;\n  }\n\n  .fph-browse-card a {\n    font-weight: 800;\n  }\n\n  .fph-image-note {\n    margin-top: 40px;\n    padding: 16px 20px;\n    border: 1px dashed var(--fph-border);\n    border-radius: 14px;\n    background: #fafbfc;\n    text-align: center;\n    font-weight: 700;\n  }\n\n  .fph-verification {\n    margin-top: 30px;\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 20px;\n    background: var(--fph-white);\n  }\n\n  .fph-verification-header {\n    padding: 25px;\n    background: var(--fph-dark);\n    color: var(--fph-white);\n  }\n\n  .fph-verification-header h2 {\n    margin: 0 0 7px;\n    color: var(--fph-white);\n    font-size: 29px;\n  }\n\n  .fph-verification-header p {\n    margin: 0;\n    color: rgba(255, 255, 255, 0.88);\n  }\n\n  .fph-verification-body {\n    padding: 27px;\n  }\n\n  .fph-verification-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin: 24px 0;\n  }\n\n  .fph-verification-card {\n    padding: 23px;\n    border: 1px solid #cfe2df;\n    border-radius: 16px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-verification-card h3 {\n    margin: 0 0 9px;\n    color: var(--fph-teal);\n    font-size: 20px;\n  }\n\n  .fph-verification-card p {\n    margin: 0;\n  }\n\n  .fph-contact-link {\n    color: var(--fph-orange);\n    font-weight: 750;\n  }\n\n  .fph-educational-note {\n    margin-top: 24px;\n    padding: 20px 22px;\n    border-radius: 15px;\n    background: #eef3f7;\n    color: #42566d;\n    font-size: 15px;\n  }\n\n  .fph-reviewed {\n    margin-top: 18px;\n    color: var(--fph-muted);\n    font-size: 14px;\n  }\n\n  @media (max-width: 1050px) {\n    .fph-comparison-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n\n    .fph-benefits-grid,\n    .fph-related-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n  }\n\n  @media (max-width: 749px) {\n    .fph-product-copy {\n      padding-right: 18px;\n      padding-left: 18px;\n      font-size: 16px;\n      line-height: 1.65;\n    }\n\n    .fph-product-title {\n      font-size: 32px;\n    }\n\n    .fph-section {\n      padding: 39px 0;\n    }\n\n    .fph-section-title {\n      font-size: 28px;\n    }\n\n    .fph-toc-label {\n      display: none;\n    }\n\n    .fph-toc a {\n      min-height: 44px;\n      padding: 9px 17px;\n      font-size: 15px;\n    }\n\n    .fph-glance-row {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-glance-label {\n      padding-bottom: 7px;\n    }\n\n    .fph-glance-value {\n      padding-top: 7px;\n    }\n\n    .fph-two-column,\n    .fph-comparison-grid,\n    .fph-benefits-grid,\n    .fph-timeline,\n    .fph-safety-grid,\n    .fph-policy-grid,\n    .fph-related-grid,\n    .fph-browse-grid,\n    .fph-verification-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-step {\n      grid-template-columns: 48px minmax(0, 1fr);\n      gap: 14px;\n      padding: 20px;\n    }\n  }\n\n  @media (prefers-reduced-motion: reduce) {\n    .fph-product-copy *,\n    .fph-product-copy *::before,\n    .fph-product-copy *::after {\n      transition: none !important;\n      animation: none !important;\n      scroll-behavior: auto !important;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"fph-product-copy\"\u003e\n\u003csection class=\"fph-section\" id=\"overview\"\u003e\n\u003ch1 class=\"fph-product-title\"\u003eFix Pen (Fish Pen Forte) Penicillin Tablets - 500 mg\u003c\/h1\u003e\n\u003cnav class=\"fph-toc\" aria-label=\"On this page\"\u003e\u003cspan class=\"fph-toc-label\"\u003eOn this page:\u003c\/span\u003e \u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e \u003ca href=\"#fish-pen-vs-fix-pen\"\u003eFish Pen vs Fix Pen\u003c\/a\u003e \u003ca href=\"#benefits\"\u003eBenefits\u003c\/a\u003e \u003ca href=\"#usage\"\u003eUsage\u003c\/a\u003e \u003ca href=\"#how-it-works\"\u003eHow It Works\u003c\/a\u003e \u003ca href=\"#safety\"\u003eSafety\u003c\/a\u003e \u003ca href=\"#shipping\"\u003eShipping\u003c\/a\u003e \u003ca href=\"#faq\"\u003eFAQ\u003c\/a\u003e \u003ca href=\"#bottom-line\"\u003eBottom Line\u003c\/a\u003e\u003c\/nav\u003e\n\u003cdiv class=\"fph-glance\"\u003e\n\u003cdiv class=\"fph-glance-heading\"\u003eFix Pen at a Glance\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eFor\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eOrnamental aquarium fish and non-food pet birds\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eHelps with\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eSuspected bacterial problems such as fin rot, tail rot, ulcers, infected wounds, and pop-eye\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eForm\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eTablets, 500 mg each\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eCount sizes\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003e30-count and 60-count bottles\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eWater type\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFreshwater and saltwater\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eMade in\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eUnited States by Aqua Soma Labs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"fph-lead\"\u003e\u003cstrong\u003eFix Pen\u003c\/strong\u003e is an antibacterial treatment for ornamental aquarium fish and non-food pet birds.\u003c\/p\u003e\n\u003cp\u003eEach tablet contains 500 mg of Penicillin V Potassium and is manufactured in the United States by Aqua Soma Labs.\u003c\/p\u003e\n\u003cp\u003eFix Pen is available in bottles containing 30 or 60 tablets with clearly printed expiration dates.\u003c\/p\u003e\n\u003cp\u003eAquarium keepers may know this product under older names such as Fish Pen, Fish Pen Forte, Aqua Pen, or FISHBIOTIC Penicillin.\u003c\/p\u003e\n\u003cp\u003eThese were names associated with discontinued Thomas Labs products, while Fix Pen is the current Aqua Soma Labs replacement.\u003c\/p\u003e\n\u003cp\u003eAquarium keepers may consider penicillin tablets when ornamental fish show suspected bacterial signs such as fin and tail rot, mouth rot, infected wounds, pop-eye, cloudy eyes, open sores, ulcers, reddened skin, or columnaris-type lesions with a cotton-wool appearance.\u003c\/p\u003e\n\u003cp\u003ePenicillin V acts on the cell walls of certain susceptible bacteria and is generally associated with activity against Gram-positive bacteria and some Gram-negative organisms.\u003c\/p\u003e\n\u003cp\u003eFix Pen provides a consistent 500 mg tablet strength that can be dissolved in aquarium water or divided for a smaller treatment system.\u003c\/p\u003e\n\u003cp\u003eThe same tablets may be considered for non-food pet birds only under direct avian veterinary guidance.\u003c\/p\u003e\n\u003cp\u003eChoose the 30-count bottle for a single hospital tank or occasional use, or the 60-count bottle for larger aquarium collections, multi-tank operations, or a veterinarian-directed aviary treatment plan.\u003c\/p\u003e\n\u003cp\u003eBegin treatment at the first signs of a suspected bacterial concern. Symptoms differ between fish and birds, so review the separate lists below.\u003c\/p\u003e\n\u003cdiv class=\"fph-two-column\"\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eFish-Specific Symptoms\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFin and tail rot with frayed or deteriorating fins\u003c\/li\u003e\n\u003cli\u003eMouth rot\u003c\/li\u003e\n\u003cli\u003eInfected wounds\u003c\/li\u003e\n\u003cli\u003ePop-eye or bulging eyes\u003c\/li\u003e\n\u003cli\u003eCloudy eyes\u003c\/li\u003e\n\u003cli\u003eColumnaris-type lesions with a cotton-wool appearance\u003c\/li\u003e\n\u003cli\u003eOpen sores, ulcers, or reddened skin\u003c\/li\u003e\n\u003cli\u003eReduced appetite, lethargy, or hiding\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eBird-Specific Symptoms Under Veterinary Guidance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRespiratory signs with labored breathing\u003c\/li\u003e\n\u003cli\u003eSoft-tissue concerns linked by a veterinarian to bacteria\u003c\/li\u003e\n\u003cli\u003eFluffed-up feathers\u003c\/li\u003e\n\u003cli\u003eLethargy or inactivity\u003c\/li\u003e\n\u003cli\u003eDecreased appetite\u003c\/li\u003e\n\u003cli\u003eOther symptoms specifically evaluated by an avian veterinarian\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 28px;\"\u003eFor birds, only use Fix Pen when an avian veterinarian has recommended penicillin for a specific condition and has determined the appropriate amount, administration method, frequency, and duration.\u003c\/p\u003e\n\u003cp\u003eStable water quality, appropriate nutrition, good housing, low stress, and careful observation remain essential parts of fish and bird care.\u003c\/p\u003e\n\u003cp\u003ePenicillin does not treat viral problems, and unnecessary antibacterial use may reduce treatment effectiveness over time.\u003c\/p\u003e\n\u003cdiv class=\"fph-order-note\"\u003e\n\u003cp\u003e\u003cstrong\u003eSame-day dispatch:\u003c\/strong\u003e In-stock orders placed before 1:30 p.m. CT, Monday through Friday, ship from our United States warehouse through USPS or UPS.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e This product is intended for ornamental aquarium fish and non-food pet birds only. It is not intended for animals raised for food.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"fish-pen-vs-fix-pen\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFish Pen Forte vs Fix Pen: What Changed?\u003c\/h2\u003e\n\u003cp\u003eIf you previously purchased Thomas Labs Fish Pen, Fish Pen Forte, Aqua Pen, or FISHBIOTIC Penicillin, here is what remains the same and what has changed.\u003c\/p\u003e\n\u003cdiv class=\"fph-comparison-grid\"\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eActive ingredient\u003c\/span\u003e\n\u003ch3\u003eSame Penicillin Formula\u003c\/h3\u003e\n\u003cp\u003eFix Pen contains Penicillin V Potassium at 500 mg per tablet, matching the familiar strength associated with Fish Pen and Fish Pen Forte.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eManufacturer\u003c\/span\u003e\n\u003ch3\u003eNew Manufacturer\u003c\/h3\u003e\n\u003cp\u003eFix Pen is manufactured in the United States by Aqua Soma Labs and replaces the discontinued Thomas Labs product line.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eTablet format\u003c\/span\u003e\n\u003ch3\u003eSame Dissolvable Tablet Form\u003c\/h3\u003e\n\u003cp\u003eThe tablet can be dissolved in aquarium water or divided for smaller treatment volumes according to the current bottle label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eBottle options\u003c\/span\u003e\n\u003ch3\u003e30-Count and 60-Count Bottles\u003c\/h3\u003e\n\u003cp\u003eChoose the bottle size that fits a single hospital tank, repeat treatment, multi-tank aquarium setup, or veterinarian-directed aviary plan.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"benefits\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eBenefits of Fix Pen for Fish \u0026amp; Birds\u003c\/h2\u003e\n\u003cdiv class=\"fph-benefits-grid\"\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch3\u003eTargeted Gram-Positive Bacterial Coverage\u003c\/h3\u003e\n\u003cp\u003ePenicillin is commonly considered when a susceptible Gram-positive bacterial component is suspected in fin damage, mouth rot, sores, ulcers, pop-eye, or cloudy eyes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch3\u003eMade in the United States\u003c\/h3\u003e\n\u003cp\u003eFix Pen is manufactured in the United States by Aqua Soma Labs and supplied with clearly printed strength and expiration information.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch3\u003eConsistent 500 mg Tablets\u003c\/h3\u003e\n\u003cp\u003eEach tablet provides a fixed 500 mg amount of Penicillin V Potassium, making treatment-water calculations easier across different aquarium volumes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch3\u003eCommon Aquarium Use Cases\u003c\/h3\u003e\n\u003cp\u003eAquarium keepers may consider Fix Pen for suspected bacterial fin damage, infected wounds, flexibacter-type concerns, ulcers, and other symptoms where a susceptible bacterial cause is likely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e05\u003c\/div\u003e\n\u003ch3\u003eFreshwater and Saltwater Compatible\u003c\/h3\u003e\n\u003cp\u003eFix Pen may be used in properly prepared freshwater or saltwater treatment tanks according to the current product label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e06\u003c\/div\u003e\n\u003ch3\u003eQuarantine-Friendly and Biofilter Aware\u003c\/h3\u003e\n\u003cp\u003eA separate hospital tank helps protect the display aquarium's beneficial bacteria, sensitive invertebrates, and healthy tank mates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e07\u003c\/div\u003e\n\u003ch3\u003eVet-Directed Option for Pet Birds\u003c\/h3\u003e\n\u003cp\u003ePenicillin may be used for non-food pet birds only when an avian veterinarian has diagnosed the problem and established the appropriate treatment plan.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"usage\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eUsage Guidelines \u0026amp; Instructions\u003c\/h2\u003e\n\u003cdiv class=\"fph-summary-box\"\u003e\n\u003ch3\u003eQuick Usage Summary for Fish\u003c\/h3\u003e\n\u003cp\u003eUse one 500 mg tablet per 20 gallons or approximately 76 litres of treatment water.\u003c\/p\u003e\n\u003cp\u003eRepeat every 24 hours and perform a partial water change between treatments.\u003c\/p\u003e\n\u003cp\u003eContinue for 5 to 10 days and discontinue use if no improvement is seen after five days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-steps\"\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e1\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eSet Up a Separate Treatment Area\u003c\/h3\u003e\n\u003cp\u003eTreat affected fish in a hospital or quarantine tank whenever possible.\u003c\/p\u003e\n\u003cp\u003eThis limits exposure of healthy tank mates and makes it easier to monitor treatment response, ammonia, nitrite, temperature, and oxygen levels.\u003c\/p\u003e\n\u003cp\u003eRemove activated carbon and other chemical filtration media and switch off UV sterilization during treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e2\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eDirections for Fish Aquariums\u003c\/h3\u003e\n\u003cp\u003eDissolve one 500 mg tablet in a clean cup of aquarium water.\u003c\/p\u003e\n\u003cp\u003eAdd the dissolved mixture evenly throughout the treatment tank for every 20 gallons or approximately 76 litres of actual treatment water.\u003c\/p\u003e\n\u003cp\u003eCalculate the real water volume after accounting for substrate, decorations, equipment, and fill level.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e3\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eRepeat Every 24 Hours\u003c\/h3\u003e\n\u003cp\u003eRepeat treatment once every 24 hours according to the current bottle label.\u003c\/p\u003e\n\u003cp\u003ePerform a partial water change between treatments to maintain suitable water quality.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e4\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eContinue for 5 to 10 Days\u003c\/h3\u003e\n\u003cp\u003eContinue treatment for the complete recommended period, even when the fish begin to improve, unless a qualified professional advises otherwise.\u003c\/p\u003e\n\u003cp\u003eStopping treatment too early may allow the suspected bacterial problem to return.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e5\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eStop if There Is No Improvement\u003c\/h3\u003e\n\u003cp\u003eIf no improvement is seen after five days, discontinue treatment and reassess the water quality and likely cause.\u003c\/p\u003e\n\u003cp\u003eSeek aquatic veterinary or fish-health guidance if the fish become worse or develop severe distress.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e6\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eMaintain Water Quality\u003c\/h3\u003e\n\u003cp\u003eMaintain strong aeration and stable temperature throughout treatment.\u003c\/p\u003e\n\u003cp\u003eTest ammonia and nitrite regularly because antibacterial treatment may disturb beneficial filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e7\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003ePet Birds Under Veterinary Guidance Only\u003c\/h3\u003e\n\u003cp\u003eDo not use the aquarium-water chart to calculate an amount for birds.\u003c\/p\u003e\n\u003cp\u003eAn avian veterinarian must determine the correct amount according to species, weight, diagnosis, administration method, frequency, and duration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eFix Pen Amounts by Aquarium Size\u003c\/h3\u003e\n\u003cdiv class=\"fph-table-wrapper\"\u003e\n\u003ctable class=\"fph-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTank volume\u003c\/th\u003e\n\u003cth\u003ePenicillin per use\u003c\/th\u003e\n\u003cth\u003e500 mg tablets\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 gallons (38 L)\u003c\/td\u003e\n\u003ctd\u003e250 mg\u003c\/td\u003e\n\u003ctd\u003e½ tablet or the equivalent measured dissolved portion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 gallons (76 L)\u003c\/td\u003e\n\u003ctd\u003e500 mg\u003c\/td\u003e\n\u003ctd\u003e1 tablet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40 gallons (151 L)\u003c\/td\u003e\n\u003ctd\u003e1,000 mg\u003c\/td\u003e\n\u003ctd\u003e2 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e60 gallons (227 L)\u003c\/td\u003e\n\u003ctd\u003e1,500 mg\u003c\/td\u003e\n\u003ctd\u003e3 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e75 gallons (284 L)\u003c\/td\u003e\n\u003ctd\u003eApproximately 1,875 mg\u003c\/td\u003e\n\u003ctd\u003eApproximately 4 tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eThese amounts follow the supplied label guideline of one 500 mg tablet per 20 gallons or approximately 76 litres, which equals about 25 mg per gallon. Dose according to the actual treatment-water volume, not the number of fish. For aquariums under 20 gallons, dissolving a complete tablet in a measured amount of water and adding the correct fraction may be more accurate than dividing the tablet by hand. The current bottle label or instructions from an aquatic veterinarian take priority over this quick-reference chart.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat to Expect During Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-timeline\"\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 1 to 2\u003c\/h3\u003e\n\u003cp\u003eFish may hide, eat less, or produce slightly cloudy treatment water. Maintain the treatment schedule and keep aeration strong.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 3 to 5\u003c\/h3\u003e\n\u003cp\u003eLook for sores and red areas that stop spreading, returning appetite, improved activity, and steadier breathing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 5 to 10\u003c\/h3\u003e\n\u003cp\u003eComplete the recommended treatment. Afterward, perform a partial water change and restore activated carbon to help clear remaining treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eReassess treatment at day five. If there is no improvement, or if the fish become worse, discontinue treatment and seek aquatic veterinary guidance.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat You Need for Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003cul\u003e\n\u003cli\u003eA separate hospital or quarantine tank\u003c\/li\u003e\n\u003cli\u003eA suitable aquarium heater\u003c\/li\u003e\n\u003cli\u003eAn air stone or established sponge filter\u003c\/li\u003e\n\u003cli\u003eAn ammonia and nitrite test kit\u003c\/li\u003e\n\u003cli\u003eA suitable water conditioner or dechlorinator\u003c\/li\u003e\n\u003cli\u003eA small net for gentle transfer\u003c\/li\u003e\n\u003cli\u003eA clean cup for dissolving and measuring the treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-pro-tip\"\u003e\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Dose according to the actual treated water volume rather than the aquarium's advertised capacity. Gravel, rocks, decorations, equipment, and the fill level reduce the amount of water inside the tank.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"how-it-works\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eHow Fix Pen Works\u003c\/h2\u003e\n\u003cp class=\"fph-lead\"\u003eEach Fix Pen tablet contains 500 mg of Penicillin V Potassium.\u003c\/p\u003e\n\u003cp\u003ePenicillin V works by interfering with the cell walls of certain susceptible bacteria.\u003c\/p\u003e\n\u003cp\u003eIt is generally associated with activity against certain Gram-positive bacteria and some Gram-negative organisms when used as directed in ornamental fish care.\u003c\/p\u003e\n\u003cp\u003eThe treatment is most appropriate when a susceptible bacterial cause is likely and should not be expected to treat fungal, viral, or parasitic conditions.\u003c\/p\u003e\n\u003cp\u003eEach tablet also contains standard inactive ingredients that hold the tablet together during storage and allow it to break apart and disperse in aquarium water.\u003c\/p\u003e\n\u003cp\u003eUse in non-food pet birds must follow the exact diagnosis and instructions of an avian veterinarian.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"safety\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eSafety and Tank Notes\u003c\/h2\u003e\n\u003cp\u003eWhen used according to the current label, Fix Pen usually causes no problems in ornamental aquarium fish.\u003c\/p\u003e\n\u003cp\u003eUnnecessary use, inaccurate amounts, combining multiple treatments, or prolonged treatment may increase stress and antibacterial resistance.\u003c\/p\u003e\n\u003cdiv class=\"fph-safety-grid\"\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eFish\u003c\/h3\u003e\n\u003cp\u003eFish may temporarily hide, eat less, or appear mildly lethargic during treatment.\u003c\/p\u003e\n\u003cp\u003eIf severe distress develops, including rapid gill movement, surface gasping, loss of balance, rolling, or remaining on the bottom, stop treatment, increase aeration, and perform an appropriate partial water change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eBirds\u003c\/h3\u003e\n\u003cp\u003eUse Fix Pen in non-food pet birds only under avian veterinary guidance.\u003c\/p\u003e\n\u003cp\u003eIf a bird becomes unusually lethargic, stops eating, develops breathing difficulty, or appears significantly worse, discontinue use and contact the veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eInvertebrates\u003c\/h3\u003e\n\u003cp\u003eDo not use Fix Pen in display tanks containing shrimp, snails, corals, or other sensitive invertebrates whenever a separate treatment tank is available.\u003c\/p\u003e\n\u003cp\u003ePenicillin may harm sensitive species or disturb the aquarium ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eBiofilter Awareness\u003c\/h3\u003e\n\u003cp\u003eAntibacterial treatment may affect beneficial filtration bacteria.\u003c\/p\u003e\n\u003cp\u003eMonitor ammonia and nitrite closely and perform partial water changes whenever necessary.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eFiltration During Treatment\u003c\/h3\u003e\n\u003cp\u003eRemove activated carbon and other chemical filtration media and switch off UV sterilization during treatment.\u003c\/p\u003e\n\u003cp\u003eRestore normal filtration after treatment is complete.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eDo Not Mix Treatments\u003c\/h3\u003e\n\u003cp\u003eDo not combine Fix Pen with other aquarium or bird treatments unless a qualified veterinarian specifically recommends the combination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-warning\"\u003e\n\u003ch3\u003eImportant Safety Note\u003c\/h3\u003e\n\u003cp\u003eFix Pen is intended for ornamental aquarium fish and non-food pet birds only.\u003c\/p\u003e\n\u003cp\u003eIt is not intended for animals raised for food.\u003c\/p\u003e\n\u003cp\u003eStore tablets in their original, tightly closed container in a cool, dry place protected from direct sunlight, excessive heat, and moisture.\u003c\/p\u003e\n\u003cp\u003eKeep out of reach of children and animals.\u003c\/p\u003e\n\u003cp\u003eAlways follow the directions printed on the current product label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"shipping\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cdiv class=\"fph-policy-grid\"\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eShipping Policy\u003c\/h3\u003e\n\u003cp\u003eOrders ship from our United States warehouse within one business day through USPS or UPS.\u003c\/p\u003e\n\u003cp\u003eIn-stock orders placed before 1:30 p.m. CT, Monday through Friday, may ship the same business day.\u003c\/p\u003e\n\u003cp\u003eShipping rates and estimated delivery times are calculated at checkout.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/shipping-policy\"\u003eReview Shipping Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eRefund Policy\u003c\/h3\u003e\n\u003cp\u003eIf there is an issue with your order, eligible products may be returned or exchanged within 30 days according to the current store guidelines.\u003c\/p\u003e\n\u003cp\u003eReview the complete refund policy before returning any product.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/refund-policy\"\u003eReview Refund Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"faq\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"fph-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is Fix Pen used for?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Pen contains Penicillin V Potassium and is intended for certain suspected bacterial problems in ornamental aquarium fish, including fin and tail rot, mouth rot, infected wounds, ulcers, pop-eye, cloudy eyes, and some columnaris-type lesions.\u003c\/p\u003e\n\u003cp\u003eUse in non-food pet birds should occur only under avian veterinary guidance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between Fish Pen Forte and Fix Pen?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Pen is the current Aqua Soma Labs replacement for discontinued Thomas Labs Fish Pen and Fish Pen Forte products. It provides the same 500 mg Penicillin V Potassium tablet strength with updated packaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Pen a replacement for FISHBIOTIC Penicillin or Aqua Pen?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Pen is presented as the current replacement for older FISHBIOTIC Penicillin and Aqua Pen aquarium products.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow soon should I see improvement with Fix Pen?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eImprovement may appear within three to five days through sores that stop spreading, improved appetite, increased activity, and steadier breathing.\u003c\/p\u003e\n\u003cp\u003eDiscontinue treatment and seek professional advice if the fish worsen or no improvement appears by day five.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhere can I buy penicillin tablets for fish online?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Pen 500 mg tablets can be ordered through this online store in 30-count or 60-count bottles and shipped according to the current store shipping policy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is in each Fix Pen tablet?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eEach tablet contains 500 mg of Penicillin V Potassium together with standard inactive tablet ingredients.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the Fix Pen amount for fish?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied label guideline is one 500 mg tablet per 20 gallons or approximately 76 litres of treatment water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long should I treat with Fix Pen?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied instructions describe treatment every 24 hours for 5 to 10 days, with a partial water change between treatments.\u003c\/p\u003e\n\u003cp\u003eDiscontinue treatment if no improvement is seen after five days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eShould I treat in the main tank or a hospital tank?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eA separate hospital or quarantine tank is strongly preferred. This protects healthy tank mates, sensitive invertebrates, and the display aquarium's established filtration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need to remove activated carbon or turn off UV?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eRemove activated carbon and other chemical filtration media and switch off UV sterilization during treatment because these systems may reduce treatment availability in the water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill Fix Pen harm beneficial aquarium bacteria?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAntibacterial treatment may disturb beneficial biological filtration. Use a separate treatment tank whenever possible and monitor ammonia and nitrite closely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Pen be used in saltwater aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Pen is presented for properly prepared freshwater and saltwater treatment tanks. Use a separate hospital tank when the display system contains corals or sensitive invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Pen safe for betta fish and small aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eSmall aquariums require careful measurement. The supplied rate is one 500 mg tablet per 20 gallons, so a smaller treatment volume requires a proportional amount.\u003c\/p\u003e\n\u003cp\u003eDissolving one tablet in a measured volume and adding the appropriate fraction may be more accurate than dividing the tablet by hand.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use Fix Pen in a planted tank or with shrimp and snails?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eTreat affected fish in a separate hospital tank whenever possible. Penicillin may disturb the display aquarium and may harm shrimp, snails, or other sensitive invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Pen treat fungal, viral, or parasitic infections?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Pen is an antibacterial product and should not be expected to treat fungal, viral, or parasitic conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I combine Fix Pen with other fish treatments?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDo not combine Fix Pen with other aquarium treatments unless a qualified veterinarian specifically recommends the combination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat should I do after finishing a Fix Pen treatment?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003ePerform a partial water change, resume normal filtration, restore activated carbon if normally used, and continue monitoring ammonia, nitrite, temperature, and fish behavior.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use Fix Pen for dogs, cats, or chickens?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eNo. This product is labeled for ornamental aquarium fish and non-food pet birds. It is not intended for dogs, cats, humans, chickens raised for food, or other food-producing animals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use Fix Pen as penicillin for pet birds?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Pen may be considered for non-food pet birds only under direct avian veterinary guidance. The veterinarian must establish the diagnosis, amount, administration method, frequency, and duration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow should I store and dispose of Fix Pen tablets?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eStore tablets tightly closed in their original container in a cool, dry location protected from direct sunlight, excessive heat, and moisture.\u003c\/p\u003e\n\u003cp\u003eFollow the current product label and applicable local requirements when disposing of unused tablets, treatment water, or filter media. Avoid releasing concentrated treatment into natural waterways.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"bottom-line\"\u003e\n\u003cdiv class=\"fph-bottom-line\"\u003e\n\u003ch2\u003eBottom Line\u003c\/h2\u003e\n\u003cp\u003eFix Pen is a 500 mg Penicillin V Potassium tablet for certain suspected bacterial problems in ornamental aquarium fish and a veterinarian-directed penicillin option for non-food pet birds.\u003c\/p\u003e\n\u003cp\u003eIt is the current Aqua Soma Labs replacement for discontinued Thomas Labs Fish Pen and Fish Pen Forte products.\u003c\/p\u003e\n\u003cp\u003eThe supplied aquarium guideline is one 500 mg tablet per 20 gallons or approximately 76 litres of treatment water, repeated every 24 hours for 5 to 10 days with partial water changes between treatments.\u003c\/p\u003e\n\u003cp\u003eReassess treatment at day five and discontinue use if no improvement is seen.\u003c\/p\u003e\n\u003cp\u003eFix Pen will not treat fungal, viral, or parasitic conditions and is not intended for animals raised for food.\u003c\/p\u003e\n\u003cp\u003eUse a hospital tank whenever possible and consult an aquatic or avian veterinarian when the diagnosis is uncertain or when treating a bird.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eMore Fish \u0026amp; Bird Treatments\u003c\/h2\u003e\n\u003cdiv class=\"fph-related-grid\"\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Mox (Amoxicillin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, dropsy, ulcers, infected wounds, and other suspected bacterial concerns in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-mox\"\u003eShop Fix Mox → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zole (Metronidazole) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for certain anaerobic and protozoal concerns, including Hexamita and hole-in-the-head symptoms.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zole\"\u003eShop Fix Zole → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Doxy (Doxycycline) 100 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for columnaris, respiratory concerns, and Mycoplasma-related problems in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-doxy\"\u003eShop Fix Doxy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zithro (Azithromycin) 250 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, columnaris, gill disease, and veterinarian-directed avian respiratory concerns.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zithro\"\u003eShop Fix Zithro → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Cin (Clindamycin) 150 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for certain bacterial skin, mouth, wound, and soft-tissue concerns in ornamental aquarium fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-cin\"\u003eShop Fix Cin → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Sulfa (SMZ\/TMP) 960 mg\u003c\/h3\u003e\n\u003cp\u003eA dual-ingredient treatment used for a range of suspected bacterial concerns in ornamental aquarium fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-sulfa\"\u003eShop Fix Sulfa → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flex (Cephalexin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, ulcers, infected wounds, and bacterial skin concerns in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flex\"\u003eShop Fix Flex → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flox (Ciprofloxacin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for suspected bacterial concerns including fin rot, ulcers, columnaris-type patches, and septicemia.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flox\"\u003eShop Fix Flox → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-grid\"\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eBrowse All Treatments\u003c\/h3\u003e\n\u003cp\u003eExplore the complete Fish \u0026amp; Bird Treatments Collection for additional Fix line products and related care options.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/collections\/fish-antibiotics\"\u003eExplore the Collection → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eGuides and Care Tips\u003c\/h3\u003e\n\u003cp\u003eVisit the Fish \u0026amp; Bird Care Blog for practical aquarium guides, water-care information, and treatment tips.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/blogs\/fish-antibiotics\"\u003eVisit the Blog → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-image-note\"\u003eTap the product image above to expand and zoom 🔍\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003cdiv class=\"fph-verification\"\u003e\n\u003cdiv class=\"fph-verification-header\"\u003e\n\u003ch2\u003eTransparency \u0026amp; Verification\u003c\/h2\u003e\n\u003cp\u003eHow Product Information Is Verified\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eWho is responsible for this page:\u003c\/strong\u003e The store editorial team responsible for reviewing and maintaining product information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVerification snapshot:\u003c\/strong\u003e This page is written from the current product label for this item and reviewed for accuracy and consistency before publishing.\u003c\/p\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eHow We Verify Product Information\u003c\/h3\u003e\n\u003cdiv class=\"fph-verification-grid\"\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eLabel-First Accuracy\u003c\/h3\u003e\n\u003cp\u003eDirections, treatment duration, storage information, and warnings are taken from the current product label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eSpecification Validation\u003c\/h3\u003e\n\u003cp\u003eThe active ingredient, tablet strength, bottle counts, and manufacturer information are cross-checked against available product specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eConsistency Checks\u003c\/h3\u003e\n\u003cp\u003eProduct content is reviewed for consistent strength information, directions, storage details, and safety language throughout the page.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eUpdates\u003c\/h3\u003e\n\u003cp\u003ePages are updated when product labels, packaging, tablet counts, manufacturer details, or directions change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eWhat we do not do:\u003c\/strong\u003e We do not invent product claims, and we do not add usage directions beyond what the current product label states for its intended use.\u003c\/div\u003e\n\u003cp style=\"margin-top: 25px;\"\u003eSee something that does not match the product you received? Please \u003cstrong\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003ca href=\"%20https:\/\/www.calvetsupply.com\/pages\/contact-us\" style=\"color: rgb(255, 128, 0);\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e so the information can be reviewed and updated.\u003c\/p\u003e\n\u003cdiv class=\"fph-educational-note\"\u003e\n\u003cstrong\u003eEducational use:\u003c\/strong\u003e This content is provided for general informational purposes only and is not a substitute for advice from a qualified veterinarian.\u003c\/div\u003e\n\u003cdiv class=\"fph-reviewed\"\u003eLast reviewed: July 10, 2026\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Aqua Soma Labs","offers":[{"title":"500-mg (30 Count)","offer_id":45972965818402,"sku":"641666","price":34.99,"currency_code":"USD","in_stock":true},{"title":"500-mg (60 Count)","offer_id":45972965851170,"sku":"811298","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/7008\/3874\/files\/FishPen.png?v=1783911323"},{"product_id":"fish-sulfa","title":"Fish Sulfa (Fix Sulfa) SMZ\/TMP 960mg Fish Antibacterial","description":"\u003cstyle\u003e\n  .fph-product-copy {\n    --fph-orange: #e37111;\n    --fph-teal: #148d85;\n    --fph-green: #64ad82;\n    --fph-dark: #09213f;\n    --fph-text: #24374e;\n    --fph-muted: #64748b;\n    --fph-border: #dce3eb;\n    --fph-light: #f5f8fa;\n    --fph-teal-light: #eef8f6;\n    --fph-orange-light: #fff6ed;\n    --fph-white: #ffffff;\n\n    width: 100%;\n    max-width: 1675px;\n    margin: 0 auto;\n    padding-right: 40px;\n    padding-left: 40px;\n    color: var(--fph-text);\n    font-family: inherit;\n    font-size: 17px;\n    line-height: 1.7;\n    scroll-behavior: smooth;\n  }\n\n  .fph-product-copy,\n  .fph-product-copy * {\n    box-sizing: border-box;\n  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details {\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 15px;\n    background: var(--fph-white);\n  }\n\n  .fph-faq summary {\n    position: relative;\n    padding: 19px 58px 19px 21px;\n    color: var(--fph-dark);\n    font-weight: 750;\n    cursor: pointer;\n    list-style: none;\n  }\n\n  .fph-faq summary::-webkit-details-marker {\n    display: none;\n  }\n\n  .fph-faq summary::after {\n    content: \"+\";\n    position: absolute;\n    top: 50%;\n    right: 21px;\n    color: var(--fph-teal);\n    font-size: 27px;\n    line-height: 1;\n    transform: translateY(-50%);\n  }\n\n  .fph-faq details[open] summary::after {\n    content: \"−\";\n  }\n\n  .fph-faq details[open] summary {\n    background: var(--fph-teal-light);\n  }\n\n  .fph-faq-answer {\n    padding: 0 21px 20px;\n    color: var(--fph-muted);\n  }\n\n  .fph-faq-answer p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-bottom-line {\n    padding: 30px;\n    border-radius: 20px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-bottom-line h2,\n  .fph-bottom-line p {\n    color: var(--fph-white);\n  }\n\n  .fph-bottom-line h2 {\n    margin: 0 0 15px;\n    font-size: 32px;\n  }\n\n  .fph-bottom-line p:last-child {\n    margin-bottom: 0;\n  }\n\n  .fph-related-grid {\n    display: grid;\n    grid-template-columns: repeat(3, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 27px;\n  }\n\n  .fph-related-card {\n    display: flex;\n    flex-direction: column;\n    padding: 25px;\n    border: 1px solid var(--fph-border);\n    border-radius: 18px;\n    background: var(--fph-white);\n    box-shadow: 0 7px 24px rgba(15, 42, 70, 0.05);\n  }\n\n  .fph-related-card h3 {\n    margin: 0 0 10px;\n    color: var(--fph-dark);\n    font-size: 21px;\n    line-height: 1.35;\n  }\n\n  .fph-related-card p {\n    flex: 1;\n    color: var(--fph-muted);\n  }\n\n  .fph-related-card a {\n    margin-top: auto;\n    color: var(--fph-orange);\n    font-weight: 750;\n    text-decoration: none;\n  }\n\n  .fph-related-card a:hover {\n    text-decoration: underline;\n  }\n\n  .fph-browse-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 19px;\n    margin-top: 20px;\n  }\n\n  .fph-browse-card {\n    padding: 26px;\n    border-radius: 18px;\n    background: linear-gradient(\n      135deg,\n      var(--fph-teal) 0%,\n      var(--fph-green) 100%\n    );\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card:nth-child(2) {\n    background: linear-gradient(\n      135deg,\n      var(--fph-orange) 0%,\n      #f09a47 100%\n    );\n  }\n\n  .fph-browse-card h3,\n  .fph-browse-card p,\n  .fph-browse-card a {\n    color: var(--fph-white);\n  }\n\n  .fph-browse-card h3 {\n    margin: 0 0 9px;\n    font-size: 22px;\n  }\n\n  .fph-browse-card a {\n    font-weight: 800;\n  }\n\n  .fph-image-note {\n    margin-top: 40px;\n    padding: 16px 20px;\n    border: 1px dashed var(--fph-border);\n    border-radius: 14px;\n    background: #fafbfc;\n    text-align: center;\n    font-weight: 700;\n  }\n\n  .fph-verification {\n    margin-top: 30px;\n    overflow: hidden;\n    border: 1px solid var(--fph-border);\n    border-radius: 20px;\n    background: var(--fph-white);\n  }\n\n  .fph-verification-header {\n    padding: 25px;\n    background: var(--fph-dark);\n    color: var(--fph-white);\n  }\n\n  .fph-verification-header h2 {\n    margin: 0 0 7px;\n    color: var(--fph-white);\n    font-size: 29px;\n  }\n\n  .fph-verification-header p {\n    margin: 0;\n    color: rgba(255, 255, 255, 0.88);\n  }\n\n  .fph-verification-body {\n    padding: 27px;\n  }\n\n  .fph-verification-grid {\n    display: grid;\n    grid-template-columns: repeat(2, minmax(0, 1fr));\n    gap: 18px;\n    margin: 24px 0;\n  }\n\n  .fph-verification-card {\n    padding: 23px;\n    border: 1px solid #cfe2df;\n    border-radius: 16px;\n    background: var(--fph-teal-light);\n  }\n\n  .fph-verification-card h3 {\n    margin: 0 0 9px;\n    color: var(--fph-teal);\n    font-size: 20px;\n  }\n\n  .fph-verification-card p {\n    margin: 0;\n  }\n\n  .fph-contact-link {\n    color: var(--fph-orange);\n    font-weight: 750;\n  }\n\n  .fph-educational-note {\n    margin-top: 24px;\n    padding: 20px 22px;\n    border-radius: 15px;\n    background: #eef3f7;\n    color: #42566d;\n    font-size: 15px;\n  }\n\n  .fph-reviewed {\n    margin-top: 18px;\n    color: var(--fph-muted);\n    font-size: 14px;\n  }\n\n  @media (max-width: 1050px) {\n    .fph-comparison-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n\n    .fph-benefits-grid,\n    .fph-related-grid {\n      grid-template-columns: repeat(2, minmax(0, 1fr));\n    }\n  }\n\n  @media (max-width: 749px) {\n    .fph-product-copy {\n      padding-right: 18px;\n      padding-left: 18px;\n      font-size: 16px;\n      line-height: 1.65;\n    }\n\n    .fph-product-title {\n      font-size: 32px;\n    }\n\n    .fph-section {\n      padding: 39px 0;\n    }\n\n    .fph-section-title {\n      font-size: 28px;\n    }\n\n    .fph-toc-label {\n      display: none;\n    }\n\n    .fph-toc a {\n      min-height: 44px;\n      padding: 9px 17px;\n      font-size: 15px;\n    }\n\n    .fph-glance-row {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-glance-label {\n      padding-bottom: 7px;\n    }\n\n    .fph-glance-value {\n      padding-top: 7px;\n    }\n\n    .fph-two-column,\n    .fph-comparison-grid,\n    .fph-benefits-grid,\n    .fph-timeline,\n    .fph-safety-grid,\n    .fph-policy-grid,\n    .fph-related-grid,\n    .fph-browse-grid,\n    .fph-verification-grid {\n      grid-template-columns: 1fr;\n    }\n\n    .fph-step {\n      grid-template-columns: 48px minmax(0, 1fr);\n      gap: 14px;\n      padding: 20px;\n    }\n  }\n\n  @media (prefers-reduced-motion: reduce) {\n    .fph-product-copy *,\n    .fph-product-copy *::before,\n    .fph-product-copy *::after {\n      transition: none !important;\n      animation: none !important;\n      scroll-behavior: auto !important;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"fph-product-copy\"\u003e\n\u003csection class=\"fph-section\" id=\"overview\"\u003e\n\u003ch1 class=\"fph-product-title\"\u003eFish Sulfa Forte (Fix Sulfa) Tablets, 960 mg\u003c\/h1\u003e\n\u003cnav class=\"fph-toc\" aria-label=\"On this page\"\u003e\u003cspan class=\"fph-toc-label\"\u003eOn this page:\u003c\/span\u003e \u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e \u003ca href=\"#fish-sulfa-vs-fix-sulfa\"\u003eFish Sulfa vs Fix Sulfa\u003c\/a\u003e \u003ca href=\"#benefits\"\u003eBenefits\u003c\/a\u003e \u003ca href=\"#usage\"\u003eUsage\u003c\/a\u003e \u003ca href=\"#how-it-works\"\u003eHow It Works\u003c\/a\u003e \u003ca href=\"#safety\"\u003eSafety\u003c\/a\u003e \u003ca href=\"#shipping\"\u003eShipping\u003c\/a\u003e \u003ca href=\"#faq\"\u003eFAQ\u003c\/a\u003e \u003ca href=\"#bottom-line\"\u003eBottom Line\u003c\/a\u003e\u003c\/nav\u003e\n\u003cdiv class=\"fph-glance\"\u003e\n\u003cdiv class=\"fph-glance-heading\"\u003eFix Sulfa at a Glance\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eFor\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eOrnamental aquarium fish in freshwater and saltwater systems\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eHelps with\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFin and tail rot, ulcers, columnaris, pop-eye, and other bacterial signs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eForm\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eScored tablets, 960 mg each\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eCount sizes\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003e30-count and 60-count bottles\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eWater type\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eFreshwater and saltwater\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-row\"\u003e\n\u003cdiv class=\"fph-glance-label\"\u003eMade in\u003c\/div\u003e\n\u003cdiv class=\"fph-glance-value\"\u003eUnited States by Aqua Soma Labs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"fph-lead\"\u003e\u003cstrong\u003eFish Sulfa (Fix Sulfa) SMZ\/TMP 960 mg\u003c\/strong\u003e is an antibacterial treatment for ornamental aquarium fish.\u003c\/p\u003e\n\u003cp\u003eEach scored tablet combines sulfamethoxazole 800 mg with trimethoprim 160 mg. Aquarium keepers use this dual-ingredient combination to help manage suspected bacterial problems in freshwater and saltwater treatment systems.\u003c\/p\u003e\n\u003cp\u003eIn older aquarium listings and hobby forums, this SMZ\/TMP product may also be called Fish Sulfa, Fish Sulfa Forte, FISHBIOTIC SMZ\/TMP, Aqua Sulfa, or Aqua-SMZ\/TMP.\u003c\/p\u003e\n\u003cp\u003eFix Sulfa is the current-production Aqua Soma Labs replacement for the discontinued Thomas Labs Fish Sulfa Forte.\u003c\/p\u003e\n\u003cp\u003eAquarium keepers commonly use this combination when fish show symptoms associated with fin and tail rot, columnaris or cotton-wool-type patches, skin sores, ulcer-like lesions, bacterial hemorrhagic septicemia, pop-eye, cloudy eyes, and body-slime concerns.\u003c\/p\u003e\n\u003cp\u003eThese signs may involve susceptible bacteria such as Aeromonas, Vibrio, or Streptococcus.\u003c\/p\u003e\n\u003cp\u003eSMZ\/TMP combines two active ingredients that work together to help slow the growth of certain bacteria.\u003c\/p\u003e\n\u003cp\u003eUsed as directed, sulfamethoxazole and trimethoprim work best alongside stable water parameters, strong aeration, clean treatment water, reduced stress, and appropriate aquarium husbandry.\u003c\/p\u003e\n\u003cp\u003eFix Sulfa comes as a consistent 960 mg scored tablet that can be divided, crushed, and dissolved.\u003c\/p\u003e\n\u003cp\u003eIt is available in bottles containing 30 or 60 tablets with clearly printed expiration dates, allowing aquarium keepers to choose a suitable quantity for one quarantine tank or a multi-tank fish room.\u003c\/p\u003e\n\u003cp\u003eBegin treatment at the first signs of bacterial stress and use a hospital or quarantine tank whenever practical.\u003c\/p\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003ch3\u003eFish Symptoms Aquarists Treat With Fix Sulfa\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFin and tail rot with frayed or deteriorating fins\u003c\/li\u003e\n\u003cli\u003eSkin sores, ulcer-like lesions, and red streaks\u003c\/li\u003e\n\u003cli\u003ePop-eye or bulging eyes\u003c\/li\u003e\n\u003cli\u003eCloudy eyes\u003c\/li\u003e\n\u003cli\u003eColumnaris with a cotton-wool-type appearance\u003c\/li\u003e\n\u003cli\u003eBacterial hemorrhagic septicemia\u003c\/li\u003e\n\u003cli\u003eBody-slime concerns associated with susceptible bacteria\u003c\/li\u003e\n\u003cli\u003eLethargy, rapid breathing, or appetite loss that does not resolve after water-quality correction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-order-note\"\u003e\n\u003cp\u003e\u003cstrong\u003eSame-day dispatch:\u003c\/strong\u003e Qualifying orders placed before 1:30 p.m. CT, Monday through Friday, ship from our United States warehouse through USPS or UPS.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e This product is intended for aquarium and ornamental fish only. It is not intended for animals raised for food.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"fish-sulfa-vs-fix-sulfa\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFish Sulfa Forte vs Fix Sulfa: What Changed?\u003c\/h2\u003e\n\u003cp\u003eIf you previously purchased Thomas Labs Fish Sulfa Forte, FISHBIOTIC SMZ\/TMP, Aqua Sulfa, or Aqua-SMZ\/TMP, here is what has changed and what remains the same.\u003c\/p\u003e\n\u003cdiv class=\"fph-comparison-grid\"\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eActive ingredients\u003c\/span\u003e\n\u003ch3\u003eSame SMZ\/TMP Combination\u003c\/h3\u003e\n\u003cp\u003eFix Sulfa contains sulfamethoxazole 800 mg and trimethoprim 160 mg per tablet, providing a combined strength of 960 mg.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eBranding\u003c\/span\u003e\n\u003ch3\u003eUpdated Fix Branding\u003c\/h3\u003e\n\u003cp\u003eAqua Soma Labs produces Fix Sulfa as the current replacement for discontinued Fish Sulfa Forte and other older aquarium SMZ\/TMP products.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eTablet format\u003c\/span\u003e\n\u003ch3\u003eSame Scored Tablet Form\u003c\/h3\u003e\n\u003cp\u003eEach tablet provides a consistent 960 mg total strength and can be divided, crushed, and dissolved according to the aquarium-water volume.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-comparison-card\"\u003e\n\u003cspan class=\"fph-small-label\"\u003eBottle options\u003c\/span\u003e\n\u003ch3\u003eFlexible Bottle Sizes\u003c\/h3\u003e\n\u003cp\u003eChoose between 30-count and 60-count bottles for short treatment plans, quarantine systems, or larger multi-tank setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"benefits\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eBenefits of Fix Sulfa for Fish\u003c\/h2\u003e\n\u003cdiv class=\"fph-benefits-grid\"\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e01\u003c\/div\u003e\n\u003ch3\u003eDual-Action SMZ\/TMP Combination\u003c\/h3\u003e\n\u003cp\u003eFix Sulfa pairs sulfamethoxazole and trimethoprim, a combination aquarium keepers use to help manage certain bacterial concerns in ornamental fish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e02\u003c\/div\u003e\n\u003ch3\u003eMade in the United States\u003c\/h3\u003e\n\u003cp\u003eFix Sulfa is manufactured in the United States by Aqua Soma Labs as the current-production replacement for discontinued Fish Sulfa Forte products.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e03\u003c\/div\u003e\n\u003ch3\u003eSupport for Common Aquarium Problems\u003c\/h3\u003e\n\u003cp\u003eAquarium keepers may choose Fish Sulfa tablets for fin and tail rot, columnaris-type patches, cotton-wool-type signs, ulcers, pop-eye, cloudy eyes, and persistent bacterial symptoms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e04\u003c\/div\u003e\n\u003ch3\u003eExternal and Internal Bacterial Signs\u003c\/h3\u003e\n\u003cp\u003eSMZ\/TMP may be used in a hospital tank for visible sores and fin damage or when lethargy and appetite loss occur together with suspected bacterial stress.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e05\u003c\/div\u003e\n\u003ch3\u003eConsistent 960 mg Tablet Strength\u003c\/h3\u003e\n\u003cp\u003eEach scored tablet provides a predictable amount of sulfamethoxazole and trimethoprim, helping aquarium keepers plan repeatable amounts for different water volumes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e06\u003c\/div\u003e\n\u003ch3\u003eIntended for Ornamental Fish\u003c\/h3\u003e\n\u003cp\u003eFix Sulfa is formulated and labeled for ornamental aquarium fish and provides a countable tablet format for treatment-tank use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-benefit-card\"\u003e\n\u003cdiv class=\"fph-benefit-number\"\u003e07\u003c\/div\u003e\n\u003ch3\u003eHelpful for Hospital Tanks\u003c\/h3\u003e\n\u003cp\u003eA separate hospital or quarantine tank allows closer observation, more accurate treatment, and reduced exposure of healthy tank mates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"usage\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eUsage Guidelines \u0026amp; Instructions\u003c\/h2\u003e\n\u003cp\u003eThese steps follow the supplied Fix Sulfa 960 bottle-label directions for SMZ\/TMP use in ornamental aquarium fish.\u003c\/p\u003e\n\u003cdiv class=\"fph-summary-box\"\u003e\n\u003ch3\u003eQuick Usage Summary\u003c\/h3\u003e\n\u003cp\u003eDissolve one tablet and add it for every 40 gallons or approximately 151 litres of treatment water.\u003c\/p\u003e\n\u003cp\u003eRepeat every 24 hours with a partial water change between treatments for 5 to 10 days.\u003c\/p\u003e\n\u003cp\u003eDiscontinue use if no improvement is noted after five days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eBefore You Dose\u003c\/h3\u003e\n\u003cdiv class=\"fph-steps\"\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e1\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eMeasure the Actual Water Volume\u003c\/h3\u003e\n\u003cp\u003eCalculate the real volume of water being treated rather than relying only on the aquarium's advertised capacity.\u003c\/p\u003e\n\u003cp\u003eAccount for substrate, rocks, decorations, equipment, and the actual fill level.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e2\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eUse a Hospital or Quarantine Tank\u003c\/h3\u003e\n\u003cp\u003eTreat affected fish in a separate system whenever practical for better control and closer observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e3\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eRemove Carbon and Turn Off UV\u003c\/h3\u003e\n\u003cp\u003eRemove activated carbon and other chemical filtration media before treatment.\u003c\/p\u003e\n\u003cp\u003eSwitch off ultraviolet sterilization because these systems may reduce treatment availability in the water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e4\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eIncrease Aeration\u003c\/h3\u003e\n\u003cp\u003eIncrease surface agitation and aeration while keeping the treatment-tank temperature stable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eDirections for Use\u003c\/h3\u003e\n\u003cdiv class=\"fph-steps\"\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e1\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eDissolve and Add the Treatment\u003c\/h3\u003e\n\u003cp\u003eFully dissolve one tablet in a small cup of aquarium water.\u003c\/p\u003e\n\u003cp\u003eAdd the dissolved mixture evenly throughout the treatment tank at a rate of one tablet per 40 gallons or approximately 151 litres.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e2\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eRepeat Every 24 Hours\u003c\/h3\u003e\n\u003cp\u003eRepeat treatment once every 24 hours.\u003c\/p\u003e\n\u003cp\u003ePerform a partial water change between treatments to maintain suitable water quality.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e3\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eComplete Treatment and Monitor Progress\u003c\/h3\u003e\n\u003cp\u003eContinue treatment for 5 to 10 days according to the current bottle label.\u003c\/p\u003e\n\u003cp\u003eMonitor appetite, swimming behavior, breathing, fin condition, sores, and signs of stress.\u003c\/p\u003e\n\u003cp\u003eDiscontinue use if no improvement is noted after five days.\u003c\/p\u003e\n\u003cp\u003eIf fish appear worse or develop severe stress, stop treatment and seek aquatic veterinary advice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-step\"\u003e\n\u003cdiv class=\"fph-step-number\"\u003e4\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003ePost-Treatment Cleanup\u003c\/h3\u003e\n\u003cp\u003eAfter treatment is complete, perform a partial water change and resume normal filtration.\u003c\/p\u003e\n\u003cp\u003eReplace activated carbon or other chemical media if they were removed.\u003c\/p\u003e\n\u003cp\u003eContinue monitoring ammonia, nitrite, temperature, and fish behavior for several days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eFix Sulfa Amounts by Aquarium Size\u003c\/h3\u003e\n\u003cdiv class=\"fph-table-wrapper\"\u003e\n\u003ctable class=\"fph-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTank volume\u003c\/th\u003e\n\u003cth\u003eFix Sulfa 960 amount\u003c\/th\u003e\n\u003cth\u003eHow to measure\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 gallons (38 L)\u003c\/td\u003e\n\u003ctd\u003e¼ tablet\u003c\/td\u003e\n\u003ctd\u003eDivide the scored tablet or add one-quarter of a fully dissolved tablet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 gallons (76 L)\u003c\/td\u003e\n\u003ctd\u003e½ tablet\u003c\/td\u003e\n\u003ctd\u003eDivide the scored tablet or add one-half of a fully dissolved tablet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40 gallons (151 L)\u003c\/td\u003e\n\u003ctd\u003e1 tablet\u003c\/td\u003e\n\u003ctd\u003eDissolve one complete tablet according to the label standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e80 gallons (303 L)\u003c\/td\u003e\n\u003ctd\u003e2 tablets\u003c\/td\u003e\n\u003ctd\u003eDissolve two complete tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e120 gallons (454 L)\u003c\/td\u003e\n\u003ctd\u003e3 tablets\u003c\/td\u003e\n\u003ctd\u003eDissolve three complete tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eThe supplied Fix Sulfa 960 label states one tablet per 40 gallons or approximately 151 litres, which equals about 24 mg of combined sulfamethoxazole and trimethoprim per gallon. The 40-gallon row is the exact label instruction, while the other rows scale that same rate. Dose according to actual treatment-water volume, not the number of fish. The current bottle label or an aquatic veterinarian's directions take priority over this quick-reference chart.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat to Expect During Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-timeline\"\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 1 to 2\u003c\/h3\u003e\n\u003cp\u003eFish may hide, eat less, or produce slightly cloudy treatment water. Maintain the treatment schedule and keep aeration strong.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 3 to 5\u003c\/h3\u003e\n\u003cp\u003eLook for sores and red patches that stop spreading, returning appetite, improved activity, and steadier breathing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-timeline-card\"\u003e\n\u003ch3\u003eDays 5 to 10\u003c\/h3\u003e\n\u003cp\u003eComplete the recommended treatment period. After treatment, perform a partial water change and restore activated carbon if normally used.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003eIf no improvement is seen by day five, or if symptoms become worse, discontinue treatment and seek aquatic veterinary guidance.\u003c\/div\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eWhat You Need for Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-info-box\"\u003e\n\u003cul\u003e\n\u003cli\u003eA separate hospital or quarantine tank\u003c\/li\u003e\n\u003cli\u003eA suitable aquarium heater\u003c\/li\u003e\n\u003cli\u003eAn air stone or established sponge filter\u003c\/li\u003e\n\u003cli\u003eAn ammonia and nitrite test kit\u003c\/li\u003e\n\u003cli\u003eA suitable water conditioner or dechlorinator\u003c\/li\u003e\n\u003cli\u003eA small net for gentle transfer\u003c\/li\u003e\n\u003cli\u003eA clean cup for dissolving and measuring the treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-pro-tip\"\u003e\n\u003cp\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Hospital-tank treatment helps protect the display aquarium, keeps the amount consistent, and makes it easier to maintain ammonia and nitrite at safe levels during recovery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"how-it-works\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eHow Fix Sulfa Works\u003c\/h2\u003e\n\u003cp class=\"fph-lead\"\u003eEach Fix Sulfa tablet combines sulfamethoxazole 800 mg with trimethoprim 160 mg, providing a total SMZ\/TMP strength of 960 mg.\u003c\/p\u003e\n\u003cp\u003eWhen dissolved and added to aquarium water according to the label, the two active ingredients work together to help slow the growth of certain susceptible bacteria.\u003c\/p\u003e\n\u003cp\u003eThis combination is commonly used by aquarium keepers for suspected bacterial concerns involving fins, skin, sores, ulcers, eyes, and systemic signs in ornamental freshwater and saltwater fish.\u003c\/p\u003e\n\u003cp\u003eEach tablet also contains standard inactive ingredients that help hold the tablet together, support storage stability, and allow the contents to disperse when dissolved in water.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"safety\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eSafety and Tank Notes\u003c\/h2\u003e\n\u003cp\u003eIndividual fish may respond differently to treatment. Follow the current label and monitor fish and water quality closely throughout the treatment period.\u003c\/p\u003e\n\u003cdiv class=\"fph-safety-grid\"\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003ePossible Side Effects in Fish\u003c\/h3\u003e\n\u003cp\u003ePossible temporary reactions include reduced appetite, mild lethargy, hiding behavior, and occasional water cloudiness.\u003c\/p\u003e\n\u003cp\u003eIf fish develop rapid gill movement, surface gasping, loss of balance, or remain on the bottom, stop treatment, increase aeration, and seek aquatic veterinary advice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eStop Treatment If\u003c\/h3\u003e\n\u003cp\u003eStop treatment when fish show severe stress, worsening symptoms, rapid gill movement, surface gasping, loss of balance, or a serious decline in activity.\u003c\/p\u003e\n\u003cp\u003eIncrease aeration immediately and consult an aquatic veterinarian if the signs do not stabilize.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eWater Quality and Biofilter Awareness\u003c\/h3\u003e\n\u003cp\u003eKeep aeration strong and monitor ammonia and nitrite closely.\u003c\/p\u003e\n\u003cp\u003ePerform partial water changes when necessary to keep the treatment system stable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eFiltration During Treatment\u003c\/h3\u003e\n\u003cp\u003eRemove activated carbon and other chemical filtration media before treatment.\u003c\/p\u003e\n\u003cp\u003eSwitch off ultraviolet sterilization and resume normal filtration only after treatment is complete.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eInvertebrates and Display Tanks\u003c\/h3\u003e\n\u003cp\u003eIf the aquarium contains shrimp, snails, corals, or other sensitive invertebrates, treat affected fish in a separate hospital tank whenever practical.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-safety-card\"\u003e\n\u003ch3\u003eDo Not Mix Treatments\u003c\/h3\u003e\n\u003cp\u003eAvoid combining Fix Sulfa with other aquarium treatments unless the product label explicitly allows it or an aquatic veterinarian recommends it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-warning\"\u003e\n\u003ch3\u003eImportant Warnings \u0026amp; Precautions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAquarium use only:\u003c\/strong\u003e Fix Sulfa is intended for ornamental aquarium fish only.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot for food fish:\u003c\/strong\u003e Do not use this product on fish raised for human consumption.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHandling:\u003c\/strong\u003e Avoid contact with the dissolved treatment. Wash your hands after handling and use suitable gloves when needed. Keep the tablet contents and dissolved product away from the skin and eyes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStorage:\u003c\/strong\u003e Keep the container tightly closed in a cool, dry location protected from direct sunlight and moisture.\u003c\/p\u003e\n\u003cp\u003eKeep out of reach of children and animals. Check the expiration date and do not use expired tablets.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDiscontinue if no improvement:\u003c\/strong\u003e If no improvement is noted after five days, stop treatment and re-evaluate the diagnosis or seek aquatic veterinary advice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"shipping\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cdiv class=\"fph-policy-grid\"\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eShipping Policy\u003c\/h3\u003e\n\u003cp\u003eOrders ship from our United States warehouse within one business day through USPS or UPS.\u003c\/p\u003e\n\u003cp\u003eQualifying orders placed before 1:30 p.m. CT, Monday through Friday, may ship the same business day.\u003c\/p\u003e\n\u003cp\u003eShipping rates and estimated delivery times are calculated at checkout.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/shipping-policy\"\u003eReview Shipping Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-policy-card\"\u003e\n\u003ch3\u003eRefund Policy\u003c\/h3\u003e\n\u003cp\u003eIf there is an issue with your order, eligible products may be returned or exchanged within 30 days according to the current store guidelines.\u003c\/p\u003e\n\u003cp\u003eReview the complete refund policy before returning any product.\u003c\/p\u003e\n\u003ca href=\"http:\/\/www.calvetsupply.com\/pages\/refund-policy\"\u003eReview Refund Policy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"faq\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"fph-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is Fix Sulfa used for?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Sulfa is an SMZ\/TMP antibacterial treatment for certain suspected bacterial problems in ornamental aquarium fish, including fin and tail rot, ulcers, columnaris-type signs, pop-eye, cloudy eyes, red streaking, and systemic bacterial stress.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is Fish Sulfa Forte?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFish Sulfa Forte was an aquarium SMZ\/TMP product containing sulfamethoxazole and trimethoprim. Fix Sulfa is the current Aqua Soma Labs replacement in the same combined 960 mg strength.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between Fish Sulfa Forte and Fix Sulfa?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Sulfa uses the same combination of sulfamethoxazole 800 mg and trimethoprim 160 mg associated with older Fish Sulfa Forte products. The main changes are the manufacturer, branding, packaging, and current production.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Sulfa a replacement for Aqua-SMZ\/TMP?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Sulfa is presented as the current Aqua Soma Labs replacement for older Aqua Sulfa and Aqua-SMZ\/TMP aquarium products.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhere can I buy SMZ\/TMP fish tablets online?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Sulfa 960 mg tablets can be ordered through this online store in 30-count or 60-count bottles and shipped according to the current store shipping policy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat are the active ingredients in each tablet?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eEach scored tablet contains sulfamethoxazole 800 mg and trimethoprim 160 mg, providing a combined strength of 960 mg.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the Fix Sulfa amount for fish?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied label direction is one 960 mg tablet per 40 gallons or approximately 151 litres of treatment water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow much Fix Sulfa should I use per gallon?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eOne tablet per 40 gallons equals approximately 24 mg of combined sulfamethoxazole and trimethoprim per gallon. Follow the current bottle label rather than relying only on a calculated per-gallon amount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow long should I treat with Fix Sulfa?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe supplied instructions describe treatment every 24 hours for 5 to 10 days, with a partial water change between treatments.\u003c\/p\u003e\n\u003cp\u003eDiscontinue treatment if no improvement is noted after five days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow soon should I see improvement?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eImprovement may appear within three to five days through sores that stop spreading, improved appetite, steadier breathing, and increased activity.\u003c\/p\u003e\n\u003cp\u003eStop treatment and seek professional guidance if fish worsen or no improvement appears by day five.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eShould I treat in the main tank or a hospital tank?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eA separate hospital or quarantine tank is preferred. This provides better treatment control, protects healthy tank mates, and reduces disturbance to the display aquarium.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eDo I need to remove carbon or turn off UV?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eRemove activated carbon and other chemical filtration media and switch off ultraviolet sterilization during treatment because these systems may reduce treatment availability in the water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWill Fix Sulfa harm beneficial aquarium bacteria?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAntibacterial treatment may disturb biological filtration. Use a separate treatment system when possible and monitor ammonia and nitrite closely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan Fix Sulfa treat fungal, viral, or parasitic infections?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Sulfa is an antibacterial treatment. It should not be expected to treat fungal, viral, or parasitic conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs Fix Sulfa safe for betta fish and small aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eSmall treatment tanks require careful measurement. Because each tablet is scored, it may be divided, or a complete tablet may be dissolved in a measured amount of water and the correct fraction added. Always follow the current bottle label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes Fix Sulfa work in saltwater aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Sulfa is presented for ornamental fish in freshwater and saltwater treatment systems. Use a separate hospital tank when the display aquarium contains corals or sensitive invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I combine Fix Sulfa with other fish treatments?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDo not combine Fix Sulfa with other treatments unless the label specifically permits the combination or an aquatic veterinarian recommends it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat if my fish are not improving?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDiscontinue treatment if no improvement is noted after five days. Re-evaluate the water quality and diagnosis and seek aquatic veterinary advice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat should I do after finishing treatment?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003ePerform a partial water change, resume normal filtration, restore activated carbon or chemical media, and continue monitoring ammonia, nitrite, and fish behavior for several days.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow should I store and dispose of Fix Sulfa tablets?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eStore tablets tightly closed in the original container in a cool, dry location protected from sunlight and moisture.\u003c\/p\u003e\n\u003cp\u003eFollow the product label and applicable local requirements when disposing of unused tablets, treatment water, or filter media. Avoid releasing concentrated treatment into natural waterways.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\" id=\"bottom-line\"\u003e\n\u003cdiv class=\"fph-bottom-line\"\u003e\n\u003ch2\u003eBottom Line\u003c\/h2\u003e\n\u003cp\u003eFix Sulfa is an SMZ\/TMP 960 mg antibacterial treatment containing sulfamethoxazole 800 mg and trimethoprim 160 mg for bacterial concerns in ornamental aquarium fish.\u003c\/p\u003e\n\u003cp\u003eIt is the current-production replacement for discontinued Thomas Labs Fish Sulfa Forte.\u003c\/p\u003e\n\u003cp\u003eDose according to water volume at one tablet per 40 gallons or approximately 151 litres, repeat every 24 hours with a partial water change between treatments, and continue for 5 to 10 days according to the current bottle label.\u003c\/p\u003e\n\u003cp\u003eReassess treatment at day five and discontinue use if no improvement is noted.\u003c\/p\u003e\n\u003cp\u003eFix Sulfa does not treat fungal, viral, or parasitic conditions and is intended only for ornamental aquarium fish, not animals raised for food.\u003c\/p\u003e\n\u003cp\u003eChoose the bottle size that fits your aquarium setup, or compare the additional Fix line products below.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003ch2 class=\"fph-section-title\"\u003eMore Fish \u0026amp; Bird Treatments\u003c\/h2\u003e\n\u003cdiv class=\"fph-related-grid\"\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Mox (Amoxicillin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, dropsy, ulcers, and other bacterial concerns in ornamental fish. Available in 30-count and 100-count capsules.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-mox\"\u003eShop Fix Mox → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zole (Metronidazole) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eTargets certain anaerobic organisms and protozoa associated with Hexamita and hole-in-the-head concerns. Available in 60-count bottles.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zole\"\u003eShop Fix Zole → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Doxy (Doxycycline) 100 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for columnaris, respiratory concerns, and Mycoplasma-related problems in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-doxy\"\u003eShop Fix Doxy → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Zithro (Azithromycin) 250 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, columnaris, gill disease, and veterinarian-directed avian respiratory concerns.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-zithro\"\u003eShop Fix Zithro → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Cin (Clindamycin) 150 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for bacterial skin and soft-tissue concerns in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-cin\"\u003eShop Fix Cin → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Pen (Penicillin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA penicillin treatment for bacterial concerns in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-pen\"\u003eShop Fix Pen → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flex (Cephalexin) 250\/500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for fin rot, ulcers, infected wounds, and bacterial skin concerns in ornamental fish and non-food pet birds.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flex\"\u003eShop Fix Flex → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-related-card\"\u003e\n\u003ch3\u003eFix Flox (Ciprofloxacin) 500 mg\u003c\/h3\u003e\n\u003cp\u003eA treatment for bacterial concerns including fin rot, ulcers, columnaris-type patches, and septicemia in ornamental fish.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/products\/fish-flox\"\u003eShop Fix Flox → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-grid\"\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eBrowse All Treatments\u003c\/h3\u003e\n\u003cp\u003eExplore the complete Fish \u0026amp; Bird Treatments Collection for additional Fix line products and related treatment options.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/collections\/fish-antibiotics\"\u003eExplore the Collection → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-browse-card\"\u003e\n\u003ch3\u003eGuides and Care Tips\u003c\/h3\u003e\n\u003cp\u003eVisit the Fish \u0026amp; Bird Care Blog for practical aquarium guides, water-care information, and treatment tips.\u003c\/p\u003e\n\u003ca href=\"https:\/\/www.calvetsupply.com\/blogs\/fish-antibiotics\"\u003eVisit the Blog → \u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-image-note\"\u003eTap the product image above to expand and zoom 🔍\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003cdiv class=\"fph-verification\"\u003e\n\u003cdiv class=\"fph-verification-header\"\u003e\n\u003ch2\u003eTransparency \u0026amp; Verification\u003c\/h2\u003e\n\u003cp\u003eHow Product Information Is Verified\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eWho is responsible for this page:\u003c\/strong\u003e The store editorial team responsible for reviewing and maintaining product information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVerification snapshot:\u003c\/strong\u003e This page is written from the current product label for this item and reviewed for accuracy and consistency before publishing.\u003c\/p\u003e\n\u003ch3 class=\"fph-subtitle\"\u003eHow We Verify Product Information\u003c\/h3\u003e\n\u003cdiv class=\"fph-verification-grid\"\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eLabel-First Accuracy\u003c\/h3\u003e\n\u003cp\u003eDirections, treatment duration, storage information, and warnings are taken from the current product label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eSpecification Validation\u003c\/h3\u003e\n\u003cp\u003eActive ingredients, tablet strengths, bottle counts, and manufacturer details are cross-checked against available product specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eConsistency Checks\u003c\/h3\u003e\n\u003cp\u003eProduct content is reviewed for consistent directions, strengths, storage information, and safety language throughout the page.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-verification-card\"\u003e\n\u003ch3\u003eUpdates\u003c\/h3\u003e\n\u003cp\u003ePages are updated when product labels, packaging, bottle counts, manufacturer details, or directions change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-highlight-note\"\u003e\n\u003cstrong\u003eWhat we do not do:\u003c\/strong\u003e We do not invent product claims, and we do not add usage directions beyond what the current product label states for its intended use.\u003c\/div\u003e\n\u003cp style=\"margin-top: 25px;\"\u003eSee something that does not match the product you received? Please \u003cstrong\u003e\u003cspan style=\"color: rgb(255, 128, 0);\"\u003e\u003ca href=\"%20https:\/\/www.calvetsupply.com\/pages\/contact-us\" style=\"color: rgb(255, 128, 0);\"\u003econtact us\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e so the information can be reviewed and updated.\u003c\/p\u003e\n\u003cdiv class=\"fph-educational-note\"\u003e\n\u003cstrong\u003eEducational use:\u003c\/strong\u003e This content is provided for general informational purposes only and is not a substitute for advice from a qualified veterinarian.\u003c\/div\u003e\n\u003cdiv class=\"fph-reviewed\"\u003eLast reviewed: July 10, 2026\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Aqua Soma Labs","offers":[{"title":"960-mg (30 Count)","offer_id":45972965949474,"sku":"405308","price":29.99,"currency_code":"USD","in_stock":true},{"title":"960-mg (60 Count)","offer_id":45972965982242,"sku":"322493","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/7008\/3874\/files\/FishSulfa.png?v=1783911442"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/7008\/3874\/collections\/bf61d43e-fb72-47ad-a102-2443f9ff6efc.png?v=1783717514","url":"https:\/\/calvetsupply.com\/collections\/fish-antibiotics.oembed","provider":"Calvetsupply","version":"1.0","type":"link"}