{"product_id":"fish-mox","title":"Fish Mox (Fix Mox) 250mg\/500mg 30\/100ct","description":"\u003cstyle\u003e\n  html:has(.fph-product-copy) {\n    scroll-behavior: auto;\n  }\n  @media (prefers-reduced-motion: no-preference) {\n    html:has(.fph-product-copy) {\n      scroll-behavior: smooth;\n    }\n  }\n\n  .fph-product-copy {\n    --fph-text: #1f2937;\n    --fph-heading: #111827;\n    --fph-border: #d9dde6;\n    --fph-surface: #f8fafc;\n    --fph-surface-alt: #f3f5f8;\n    --fph-accent: #143583;\n    --fph-danger: #c62828;\n    --fph-warning: #f59e0b;\n    --fph-radius: 18px;\n    color: var(--fph-text);\n    font-size: clamp(15px, 1.05vw, 17px);\n    line-height: 1.75;\n    overflow-wrap: break-word;\n  }\n\n  .fph-product-copy,\n  .fph-product-copy * {\n    box-sizing: border-box;\n  }\n\n  .fph-product-copy .fph-section \u003e * + *,\n  .fph-product-copy .fph-panel \u003e * + * {\n    margin-top: clamp(14px, 2vw, 20px);\n  }\n\n  .fph-product-copy h2 {\n    margin: 0;\n    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.fph-step-list li::before {\n      top: 16px;\n      left: 16px;\n    }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"fph-product-copy\"\u003e\n\u003csection class=\"fph-section\" id=\"fph-intro\"\u003e\n\u003ch2\u003eFix Mox (Fish Mox) Amoxicillin Capsules for Ornamental Fish \u0026amp; Pet Birds, 250 mg \/ 500 mg\u003c\/h2\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=\"#fph-benefits\"\u003eBenefits\u003c\/a\u003e \u003ca href=\"#fph-comparison\"\u003eFish Mox vs Fix Mox\u003c\/a\u003e \u003ca href=\"#fph-dosage\"\u003eUsage \u0026amp; Instructions\u003c\/a\u003e \u003ca href=\"#fph-mechanism\"\u003eHow It Works\u003c\/a\u003e \u003ca href=\"#fph-safety\"\u003eSafety \u0026amp; Tank Notes\u003c\/a\u003e \u003ca href=\"#fph-shipping\"\u003eShipping \u0026amp; Returns\u003c\/a\u003e \u003ca href=\"#fph-faq\"\u003eFAQ\u003c\/a\u003e\u003c\/nav\u003e\n\u003ctable class=\"fph-spec-table\"\u003e\n\u003ccaption\u003eFix Mox at a Glance\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFor\u003c\/th\u003e\n\u003ctd\u003eOrnamental aquarium fish and non-food pet birds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHelps with\u003c\/th\u003e\n\u003ctd\u003eFin and tail rot, dropsy, columnaris, red streaks, skin ulcers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eForm\u003c\/th\u003e\n\u003ctd\u003eCapsules, 250 mg or 500 mg each\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCount Sizes\u003c\/th\u003e\n\u003ctd\u003e30 count, 100 count\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWater Type\u003c\/th\u003e\n\u003ctd\u003eFreshwater and saltwater aquariums\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMade In\u003c\/th\u003e\n\u003ctd\u003eUnited States by Aqua Soma Labs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eFix Mox (Fish 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. In freshwater and saltwater tanks it is used for common bacterial problems: dropsy (body swelling), fin and tail rot, columnaris, hemorrhagic septicemia, red streaks, gill disease, swim bladder infections, abscesses, and skin ulcers. With 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 class=\"font-claude-response-body break-words whitespace-normal\"\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. It is the current replacement for the discontinued Thomas Labs Fish Mox (fishmox). The 250 mg option stands in for the original strength, and the 500 mg option, the fish amoxicillin 500mg strength, covers what aquarists knew as Fish Mox Forte and Aqua Mox. Stock ships from our United States warehouse with fresh expiration dates and clearly printed strengths.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\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-info-grid\"\u003e\n\u003cdiv class=\"fph-info-card\"\u003e\n\u003ch3\u003eFish-Specific Symptoms\u003c\/h3\u003e\n\u003cul class=\"fph-symptom-list\"\u003e\n\u003cli\u003eFin and tail rot (frayed or rotting fins)\u003c\/li\u003e\n\u003cli\u003eDropsy (body swelling)\u003c\/li\u003e\n\u003cli\u003ePop-eye (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, loss of appetite\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-info-card\"\u003e\n\u003ch3\u003eBird-Specific Symptoms (Under Veterinary Guidance)\u003c\/h3\u003e\n\u003cul class=\"fph-symptom-list\"\u003e\n\u003cli\u003eCrop infections\u003c\/li\u003e\n\u003cli\u003eSuspected salmonella \/ 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\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\u003cp class=\"fph-tip\"\u003e\u003cstrong\u003eOrder online\u003c\/strong\u003e and enjoy same-day dispatch 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\u003cp class=\"fph-alert\"\u003e\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e This product is \u003cstrong\u003eintended for aquarium and ornamental fish and pet birds only\u003c\/strong\u003e. It is \u003cstrong\u003enot for animals used for food\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003csection class=\"fph-section\" id=\"fph-comparison\"\u003e\n\u003ch2\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-info-grid\"\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eSame Amoxicillin Inside\u003c\/strong\u003e\u003cbr\u003eFish Mox and Fix Mox both contain amoxicillin (250 mg or 500 mg per capsule), what aquarists have relied on for years.\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eUpdated Labeling \u0026amp; Packaging\u003c\/strong\u003e\u003cbr\u003eFix Mox carries clear, modern labeling, with usage guidance, the amoxicillin strength, and storage notes printed on the bottle.\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eSame Capsule Format\u003c\/strong\u003e\u003cbr\u003ePull-apart capsules that dissolve in tank water, matching the format aquarists knew from Thomas Labs Fish Mox or Aqua Mox.\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFresh Stock \u0026amp; Current Expiration Dates\u003c\/strong\u003e\u003cbr\u003eEvery bottle ships with recent production and clearly printed expiration dates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003csection class=\"fph-section\" id=\"fph-benefits\"\u003e\n\u003ch2\u003eBenefits of Fix Mox for Fish \u0026amp; Birds\u003c\/h2\u003e\n\u003cul class=\"fph-card-list\"\u003e\n\u003cli\u003e\n\u003ch3\u003eCovers Common Fish Infections\u003c\/h3\u003e\n\u003cp\u003eAs an aquarium 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 both freshwater and saltwater tanks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eHandles External and Internal Problems\u003c\/h3\u003e\n\u003cp\u003eUse it for outward signs like frayed fins, open sores, or red patches, and for internal infections such as hemorrhagic septicemia that bring swelling, lethargy, or loss of appetite. Treat affected fish in a hospital tank.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\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 large system. A common guide is 250 mg per 10 gallons or 500 mg per 20 gallons, and an aquatic veterinarian can tailor it.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eKeep a Bottle on Hand\u003c\/h3\u003e\n\u003cp\u003eBacterial problems move fast, so it helps to have Fix Mox ready before trouble starts. Keeping a bottle on the shelf, stored cool and dry, means you can begin treatment at the first sign of infection in your aquarium.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\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 fast in tank water so the treatment reaches even shy or hiding fish. Under avian veterinary guidance, the same contents mix into soft food or water for birds with problems like crop infections.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eBuilt for Hospital and Quarantine Tanks\u003c\/h3\u003e\n\u003cp\u003eFix Mox does its best work in a separate hospital or quarantine tank. There you can pull carbon and UV, hold water quality steady, and watch the sick fish without treating healthy tank mates or sensitive invertebrates.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eA Modern Swap for Discontinued Brands\u003c\/h3\u003e\n\u003cp\u003eWhen the old Thomas Labs Fish Mox or Aqua Mox is unavailable, Fix Mox is the go-to replacement. Clear strength labels and fresh stock make it easy to match the dose to your tank or a vet-directed bird plan.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003csection class=\"fph-section\" id=\"fph-dosage\"\u003e\n\u003ch2\u003eUsage Guidelines \u0026amp; Instructions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDirections for Use:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col class=\"fph-step-list\"\u003e\n\u003cli\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 the activated carbon and switch off UV sterilizers, since both pull amoxicillin from the water. A 20-25% water change before the first dose lowers stress and starts treatment on cleaner water.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eDirections for Fish Aquariums\u003c\/h3\u003e\n\u003cp\u003eFollow the label guide of \u003cstrong\u003e250 mg amoxicillin per 10 gallons (38 L)\u003c\/strong\u003e or \u003cstrong\u003e500 mg per 20 gallons (76 L)\u003c\/strong\u003e. Open the capsule, stir the powder into a cup of tank water, then pour it evenly around the treatment tank. Repeat every 24 hours for \u003cstrong\u003e5-10 days\u003c\/strong\u003e, with a partial water change between doses. If nothing improves after about 5 days, or fish look worse, stop and ask an aquatic veterinarian.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\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. The vet sets the correct amount for the bird's weight, how often to give it, and how long to continue. Capsules are usually opened into soft food or drinking water so the bird takes the full amount, but follow the vet's exact instructions rather than guessing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eMaintain Water Quality and Finish the Treatment\u003c\/h3\u003e\n\u003cp\u003eThrough treatment, keep an eye on ammonia, nitrite, and temperature, and keep aeration strong. Finish the full treatment unless a veterinarian says otherwise; stopping early lets symptoms come back. Afterward, run a partial water change and put activated carbon back in to clear out any leftover amoxicillin and help the tank settle.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ctable class=\"fph-dose-table\"\u003e\n\u003ccaption\u003eFix Mox Amounts by Aquarium Size\u003c\/caption\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eTank volume\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eAmoxicillin per use\u003c\/th\u003e\n\u003cth scope=\"col\"\u003e250 mg capsules\u003c\/th\u003e\n\u003cth scope=\"col\"\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\u003c\/td\u003e\n\u003ctd\u003en\/a\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\u003c\/td\u003e\n\u003ctd\u003e1\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\u003c\/td\u003e\n\u003ctd\u003e1 + one 250 mg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e40 gallons (151 L)\u003c\/td\u003e\n\u003ctd\u003e1000 mg\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e55 gallons (208 L)\u003c\/td\u003e\n\u003ctd\u003eabout 1375 mg\u003c\/td\u003e\n\u003ctd\u003e5 to 6\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThese figures come from the label-style guideline of 250 mg per 10 gallons, roughly 25 mg per gallon. Dose by the water volume of your treatment tank, not by the number of fish, give one dose every 24 hours for 5 to 10 days, and round to the nearest practical capsule. The bottle label or your aquatic veterinarian takes priority over this quick-reference chart.\u003c\/p\u003e\n\u003ch3\u003eWhat to Expect During Treatment\u003c\/h3\u003e\n\u003cdiv class=\"fph-info-grid\"\u003e\n\u003cdiv class=\"fph-info-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 cloudy. This is normal early on. Keep dosing on schedule and keep aeration strong.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-info-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. If there is no change by day 5, or the fish look worse, stop and ask an aquatic veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-info-card\"\u003e\n\u003ch3\u003eDays 5 to 10\u003c\/h3\u003e\n\u003cp\u003eEven if the fish are improving, finish the full treatment so the infection does not return. Afterward, run a partial water change and put activated carbon back in to clear any leftover amoxicillin.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-info-card\"\u003e\n\u003ch3\u003eWhat You Need for Treatment\u003c\/h3\u003e\n\u003cp\u003eA little setup before the first dose saves trouble later.\u003c\/p\u003e\n\u003cul class=\"fph-symptom-list\"\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 the water changes between doses.\u003c\/li\u003e\n\u003cli\u003eA small net and a clean cup for gentle transfer and measuring the dose.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp class=\"fph-tip\"\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Treat sick fish in a separate hospital tank rather than the main display whenever you can. It keeps your display biofilter and invertebrates safe while you focus the treatment where it is needed.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003csection class=\"fph-section\" id=\"fph-mechanism\"\u003e\n\u003ch2\u003eHow Fix Mox Works\u003c\/h2\u003e\n\u003cp\u003eEach Fix Mox capsule contains amoxicillin trihydrate, 250 mg or 500 mg. Amoxicillin is used against many Gram-positive and some Gram-negative bacteria, the kind behind 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 holds standard ingredients that hold the contents together and help them disperse properly in aquarium water, or in soft food for birds under veterinary guidance.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003cdiv class=\"fph-panel\" id=\"fph-safety\"\u003e\n\u003ch2\u003eSafety and Tank Notes\u003c\/h2\u003e\n\u003cp\u003eAt the right amount, Fix Mox usually causes no problems for fish or pet birds. The risk of side effects climbs with too much product, treatment that runs longer than needed, or treating an already stressed animal, and overuse feeds resistance.\u003c\/p\u003e\n\u003cul class=\"fph-card-list\"\u003e\n\u003cli\u003e\n\u003ch3\u003eFish\u003c\/h3\u003e\n\u003cp\u003eAmoxicillin can cause short-term hiding, mild water cloudiness, and lower appetite during treatment. If a fish shows real distress, rapid gill movement, loss of balance, gasping at the surface, or lying on the bottom, stop, add clean dechlorinated water for better aeration, and call an aquatic veterinarian.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eBirds\u003c\/h3\u003e\n\u003cp\u003eMixed into food or water, amoxicillin may cause reduced appetite, loose or changed droppings, and lethargy, especially at too high an amount or in a sensitive bird. A fluffed-up, inactive bird, or one that struggles to breathe or stops eating, should stop treatment and see an avian veterinarian right away.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eInvertebrates\u003c\/h3\u003e\n\u003cp\u003eDo not use Fix Mox in display tanks with shrimp, snails, or other invertebrates, since strong treatments can harm them and upset the tank. Move affected fish to a separate hospital or quarantine tank instead.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eSafe use in your system\u003c\/h3\u003e\n\u003cp\u003eTreat in a hospital or quarantine tank where you can, pull activated carbon and switch off UV during treatment, and keep an eye on ammonia, nitrite, and temperature. Do not combine Fix Mox with other treatments unless a veterinarian advises it.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eImportant safety \u0026amp; storage\u003c\/h3\u003e\n\u003cp\u003eFix Mox is for \u003cstrong\u003eaquarium and ornamental fish and non-food pet birds only\u003c\/strong\u003e, and not for animals raised for food. If you are sensitive to penicillins, avoid contact with the capsule contents, wash your hands after handling, and wear gloves if needed. Store the capsules in their original container in a cool, dry place at \u003cstrong\u003e59-86°F (15-30°C)\u003c\/strong\u003e, out of moisture and sunlight, and out of reach of children and pets, with the lid closed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003csection class=\"fph-section\" id=\"fph-shipping\"\u003e\n\u003ch2\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cdiv class=\"fph-info-grid\"\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eShipping Policy:\u003c\/strong\u003e Orders ship from our U.S. warehouse within 1 business day via USPS or UPS, with rates and delivery times calculated at checkout. For full shipping details, please review our \u003ca href=\"https:\/\/finepethealth.com\/policies\/shipping-policy\"\u003eshipping policy\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eRefund Policy:\u003c\/strong\u003e If there is an issue with your order, you may be able to return or exchange items within 30 days according to our store guidelines. Before sending anything back, please review our \u003ca href=\"https:\/\/finepethealth.com\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e carefully.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003csection class=\"fph-section\" id=\"fph-faq\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"fph-faq-list\"\u003e\n\u003cdetails class=\"fph-faq-item\"\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 is amoxicillin in 250 mg and 500 mg capsules, sometimes written as fishmox. Aquarists use it for bacterial problems like dropsy (body swelling), fin and tail rot, red streaks, pop-eye, skin ulcers, and some gill infections. For non-food pet birds, it supports a veterinarian-directed plan for selected bacterial issues.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\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\u003eIt is the same idea under a current label. Fish Mox, Fish Mox Forte, and Aqua Mox were earlier amoxicillin products for aquarium use, and Fix Mox carries the same active ingredient for the same problems. Follow the Fix Mox label for the amount and duration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eIs Fix Mox (fish mox) the same as amoxicillin?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe active ingredient is amoxicillin trihydrate, at 250 mg and 500 mg per capsule. What differs is the labeling: Fix Mox is made and sold only for ornamental aquarium fish and non-food pet birds, and not for animals raised for food.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eIs Fix Mox the same as fish amoxicillin 500mg?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eIn the 500 mg option, yes. That capsule holds 500 mg of amoxicillin, the strength often searched for as fish amoxicillin 500mg. The 250 mg option holds 250 mg. Same ingredient, same pull-apart capsule, so you pick the strength that fits your tank size or a vet-directed bird plan.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eWhere can I buy Fish Mox (amoxicillin) online?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eIf you are wondering where can I buy fish mox, you can order Fix Mox, the current Fish Mox replacement, directly from Fine Pet Health. Orders leave our U.S. warehouse within one business day by USPS or UPS, with clear labels and current expiration dates.\u003c\/p\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/finepethealth.com\/collections\/fish-and-bird-antibacterials\" class=\"fph-faq-link\"\u003eBrowse Fish \u0026amp; Bird Treatments Collection →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eCan Fix Mox (Fish Mox) be used for dogs or cats?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eNo. The label covers ornamental aquarium fish and non-food pet birds only, not dogs, cats, or other mammals. A dog or cat that needs amoxicillin should get a vet-recommended, species-specific product and amount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\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\u003eIt comes down to strength. The original \u003cstrong\u003eThomas Labs Fish Mox\u003c\/strong\u003e was 250 mg per capsule, while \u003cstrong\u003eFish Mox Forte\u003c\/strong\u003e was 500 mg. \u003cstrong\u003eFix Mox\u003c\/strong\u003e covers both: choose the \u003cstrong\u003e250mg\u003c\/strong\u003e option, the fish mox 250mg equivalent, for standard strength, or the \u003cstrong\u003e500mg\u003c\/strong\u003e option for the Forte equivalent. The ingredient and capsule format are the same either way.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\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\u003eLook for frayed or rotting fins, red or white ulcers, red streaks in the fins or body, bulging eyes (pop-eye), labored breathing, or listless behavior that good water quality does not fix. A fish veterinarian or experienced aquarist can confirm whether the cause is bacterial and whether amoxicillin fits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\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\u003eBetter not. Treat sick fish in a separate hospital or quarantine tank. Amoxicillin is not meant for reef tanks or setups with shrimp, snails, corals, or other invertebrates, where it can harm them or knock back the beneficial filter bacteria.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\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 label guide is \u003cstrong\u003e250 mg amoxicillin per 10 gallons (38 L)\u003c\/strong\u003e or \u003cstrong\u003e500 mg per 20 gallons (76 L)\u003c\/strong\u003e. Open the capsule, mix the powder into a cup of tank water, and spread it around the treatment tank. Repeat every 24 hours for 5-10 days, with a partial water change between doses. Measure the tank volume first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eHow long should I treat with Fix Mox?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFor fish, most treatments run \u003cstrong\u003e5 to 10 days\u003c\/strong\u003e, dosing once every 24 hours at roughly 250 mg per 10 gallons (38 L) or 500 mg per 20 gallons (76 L), or as an aquatic veterinarian advises. For birds, the amount and length come from the avian vet, not from the label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eDoes Fix Mox work in saltwater aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eYes. It is used against certain bacteria in both freshwater and saltwater tanks. Treat in a hospital or quarantine tank where you can, to protect the biofilter and any invertebrates in the display.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\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\u003eOnly under an avian veterinarian's direction. The vet works out the correct amount for the bird's weight and decides whether to treat one bird or a whole loft or flock. Do not guess avian amounts or add capsule contents to shared water on your own.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eWill Fix Mox affect beneficial bacteria in my aquarium?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eIt can, if you dose the main tank. Amoxicillin does not tell good bacteria from bad. A hospital tank, regular ammonia and nitrite checks, and partial water changes during and after treatment keep the biofilter protected.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eCan Fix Mox treat fungal, viral or parasitic infections?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eNo. Amoxicillin targets certain bacteria only. It does nothing for fungi, viruses, or parasites like ich, flukes, or worms, which need different treatments chosen with help from an aquatic or avian veterinarian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eCan I combine Fix Mox with other treatments?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAvoid it unless a veterinarian says otherwise. Stacking treatments can stress fish, shift water chemistry, and hide which product is helping or causing trouble. If another treatment is needed, finish the amoxicillin first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eWhat is the active ingredient in Fish Mox?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAmoxicillin trihydrate. Each Fix Mox capsule holds 250 mg or 500 mg, the same ingredient used in the old Thomas Labs Fish Mox and Aqua Mox products for ornamental aquarium fish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\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 container in a cool, dry spot at \u003cstrong\u003e59-86°F (15-30°C)\u003c\/strong\u003e, out of moisture and sunlight, and away from children and pets, with the lid closed. Check the expiration date and do not use capsules past it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\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 after about 5 days if there is no change, or sooner if the fish get worse, then improve water quality and aeration and ask an aquatic veterinarian. No response can mean the cause is not bacterial, the bacteria do not respond to amoxicillin, or the dose or length was off.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eWhat is fish mox?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFish mox is a common name for amoxicillin sold as an aquarium treatment. Fix Mox is the current version: amoxicillin 500 mg and 250 mg capsules for ornamental fish and non-food pet birds. It is used for bacterial problems like fin rot, dropsy, red streaks, and skin ulcers, not fungi, viruses, or parasites.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003ch2\u003eMore Fish \u0026amp; Bird Treatments\u003c\/h2\u003e\n\u003cdiv class=\"fph-info-grid\"\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Zole (Metronidazole) 250\/500mg\u003c\/strong\u003e A treatment for Hexamita, hole-in-the-head disease, and other protozoa-related problems in ornamental fish. Available in 60-count bottles. \u003ca href=\"https:\/\/finepethealth.com\/products\/fish-zole\"\u003eShop Fix Zole\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Doxy (Doxycycline) 100mg\u003c\/strong\u003e A treatment for columnaris, respiratory infections, and Mycoplasma in fish and non-food pet birds. Available in 30-count and 60-count tablets. \u003ca href=\"https:\/\/finepethealth.com\/products\/fish-doxy\"\u003eShop Fix Doxy\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Zithro (Azithromycin) 250mg\u003c\/strong\u003e A treatment for fin rot, columnaris, gill disease, and avian respiratory concerns in fish and non-food pet birds. Available in 12-count and 30-count tablets. \u003ca href=\"https:\/\/finepethealth.com\/products\/fish-zithro\"\u003eShop Fix Zithro\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Cin (Clindamycin) 150mg\u003c\/strong\u003e A treatment for gram-positive bacterial problems, including skin and soft-tissue concerns, in ornamental fish. \u003ca href=\"https:\/\/finepethealth.com\/products\/fish-cin\"\u003eShop Fix Cin\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Sulfa (SMZ\/TMP) 960mg\u003c\/strong\u003e A treatment used against a range of bacterial infections in ornamental fish. \u003ca href=\"https:\/\/finepethealth.com\/products\/fish-sulfa\"\u003eShop Fix Sulfa\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Pen (Penicillin) 500mg\u003c\/strong\u003e A treatment for gram-positive bacterial problems in ornamental fish and non-food pet birds. \u003ca href=\"https:\/\/finepethealth.com\/products\/fish-pen\"\u003eShop Fix Pen\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Flex (Cephalexin) 250\/500mg\u003c\/strong\u003e A treatment for fin rot, ulcers, and bacterial skin infections in ornamental fish and non-food pet birds. \u003ca href=\"https:\/\/finepethealth.com\/products\/fish-flex\"\u003eShop Fix Flex\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Flox (Ciprofloxacin) 500mg\u003c\/strong\u003e A treatment for gram-negative bacterial problems, including fin rot, ulcers, columnaris, and septicemia, in ornamental fish and non-food pet birds. \u003ca href=\"https:\/\/finepethealth.com\/products\/fish-flox\"\u003eShop Fix Flox\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eBrowse all treatments\u003c\/strong\u003e Explore our complete \u003ca rel=\"noopener\" href=\"https:\/\/finepethealth.com\/collections\/fish-and-bird-antibacterials\"\u003e\u003cstrong\u003eFish \u0026amp; Bird Treatments Collection\u003c\/strong\u003e\u003c\/a\u003e for more Fix line products and related treatments.\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eGuides and treatment tips\u003c\/strong\u003e Visit the \u003ca rel=\"noopener\" href=\"https:\/\/finepethealth.com\/blogs\/fish-and-bird-antibacterials\"\u003e\u003cstrong\u003eFish \u0026amp; Bird Treatments Blog\u003c\/strong\u003e\u003c\/a\u003e for practical usage guides, water-care advice and treatment tips.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003c\/div\u003e","brand":"Aqua Soma Labs","offers":[{"title":"250-mg (30 count)","offer_id":49081431130362,"sku":"456074","price":25.99,"currency_code":"USD","in_stock":true},{"title":"250-mg (100 count)","offer_id":49081431163130,"sku":"239134","price":29.99,"currency_code":"USD","in_stock":true},{"title":"500-mg (30 count)","offer_id":49081431195898,"sku":"208764","price":29.99,"currency_code":"USD","in_stock":true},{"title":"500-mg (100 count)","offer_id":49081431228666,"sku":"658534","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/5244\/9786\/files\/fish-mox-amoxicillin-250mg-30-count-fish-antibacterial..webp?v=1782548331","url":"https:\/\/finepethealth.com\/products\/fish-mox","provider":"Fine Pet Health","version":"1.0","type":"link"}