{"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 #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  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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    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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: 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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 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","url":"https:\/\/calvetsupply.com\/products\/fish-flex","provider":"Calvetsupply","version":"1.0","type":"link"}