{"product_id":"fish-sulfa","title":"Fish Sulfa Forte (Fix Sulfa) SMZ\/TMP 960mg Fish Antibacterial","description":"\u003cstyle\u003e\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-acc-body \u003e * + *,\n  .fph-product-copy .fph-more-body \u003e * + * {\n    margin-top: clamp(14px, 2vw, 20px);\n  }\n\n  .fph-product-copy h2 {\n    margin: 0;\n    color: var(--fph-heading);\n    font-size: clamp(23px, 2.6vw, 33px);\n    line-height: 1.24;\n    letter-spacing: -0.02em;\n  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class=\"fph-section\"\u003e\n\u003ch2\u003eFish Bactrim (SMZ\/TMP 960mg) for Fin Rot, Columnaris and Skin Ulcers\u003cbr\u003ein Freshwater and Saltwater Tanks\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFish Sulfa Forte (Fix Sulfa)\u003c\/strong\u003e is fish bactrim in SMZ\/TMP 960 mg tablets for ornamental aquarium fish, pairing sulfamethoxazole 800 mg with trimethoprim 160 mg.\u003c\/span\u003e Aquarists use it for fin and tail rot, columnaris, skin ulcers, and pop-eye in both freshwater and saltwater aquariums, including problems that are often linked to gram-negative bacteria such as Aeromonas and Pseudomonas. The label amount is one 960 mg tablet per 40 gallons (151 L) of water, repeated every 24 hours for 5 to 10 days.\u003c\/p\u003e\n\u003cp\u003eIn older hobby listings and aquarium forums, this SMZ\/TMP product also goes by Fish Sulfa, Fish Sulfa Forte, FISHBIOTIC SMZ\/TMP, and Aqua Sulfa. Fix Sulfa is the current-production replacement for the discontinued Thomas Labs Fish Sulfa Forte. Aquarists use this combination for fin and tail rot, columnaris (often presenting as cotton wool disease), skin sores and ulcer-like lesions, bacterial hemorrhagic septicemia, pop-eye (exophthalmia), cloudy eyes, and body slime issues linked to certain bacteria such as Aeromonas, Vibrio, or Streptococcus. Some keepers also search for it as fish bactrim or bactrim for fish, since Bactrim is another name for the sulfamethoxazole and trimethoprim combination.\u003c\/p\u003e\n\u003cp\u003eStart treatment at the first signs of bacterial stress, and treat affected fish in a hospital or quarantine tank whenever possible. Watch for the symptoms below.\u003c\/p\u003e\n\u003cp class=\"fph-alert\"\u003e\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e This product is intended for aquarium and ornamental fish only. It is not for animals used for food.\u003c\/p\u003e\n\u003cdetails class=\"fph-more\"\u003e\n\u003csummary\u003e\u003cspan class=\"fph-more-open\"\u003eSee More +\u003c\/span\u003e\u003cspan class=\"fph-more-close\"\u003eSee Less −\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"fph-more-body\"\u003e\n\u003cp\u003eSMZ\/TMP pairs two ingredients that work together to help slow the growth of certain bacteria. Used as directed for fish, sulfamethoxazole and trimethoprim work best alongside stable water parameters, strong aeration, and good husbandry. Fix Sulfa is the current-production version.\u003c\/p\u003e\n\u003cdiv class=\"fph-info-card\"\u003e\n\u003ch3\u003eFish Symptoms Aquarists Treat With Fix Sulfa\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\u003eSkin sores, ulcer-like lesions, and red streaks\u003c\/li\u003e\n\u003cli\u003ePop-eye (bulging eyes) and cloudy eyes\u003c\/li\u003e\n\u003cli\u003eColumnaris, often with a cotton wool look\u003c\/li\u003e\n\u003cli\u003eBacterial hemorrhagic septicemia and body slime issues\u003c\/li\u003e\n\u003cli\u003eLethargy, rapid breathing, or loss of appetite that clean water does not fix\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003eFix Sulfa comes as a consistent \u003cstrong\u003e960 mg\u003c\/strong\u003e tablet that is easy to crush and dissolve. You can buy it online in bottles of \u003cstrong\u003e30 or 60 tablets\u003c\/strong\u003e with fresh expiration dates, so you can match the amount to a single quarantine tank or a multi-tank fish room.\u003c\/p\u003e\n\u003cp class=\"fph-tip\"\u003e\u003cstrong\u003eOrder before 1:30 p.m. CT\u003c\/strong\u003e, Monday through Friday, for same-day dispatch. Fix Sulfa ships from our U.S. warehouse via USPS or UPS.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003cdetails id=\"fph-comparison\" class=\"fph-acc\"\u003e\n\u003csummary\u003e\n\u003ch2\u003eFish Sulfa Forte vs Fix Sulfa: What Changed?\u003c\/h2\u003e\n\u003c\/summary\u003e\n\u003cdiv class=\"fph-acc-body\"\u003e\n\u003cp\u003eIf you previously purchased Thomas Labs Fish Sulfa Forte, FISHBIOTIC SMZ\/TMP or Aqua Sulfa, here is what has changed and what remains the same:\u003c\/p\u003e\n\u003cdiv class=\"fph-info-grid\"\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eSame Two Ingredients\u003c\/strong\u003e Fix Sulfa contains sulfamethoxazole 800 mg and trimethoprim 160 mg per tablet (SMZ\/TMP 960 mg), the same dual-ingredient formula found in legacy products like Thomas Labs Fish Sulfa Forte, FISHBIOTIC SMZ\/TMP, and Aqua Sulfa.\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eUpdated Branding\u003c\/strong\u003e Aqua Soma Labs makes Fix Sulfa as a current-production replacement for the discontinued Thomas Labs Fish Sulfa Forte and other legacy SMZ\/TMP fish treatments. The two ingredients and intended use are the same.\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eSame Tablet Form\u003c\/strong\u003e Each tablet delivers a consistent 960 mg in a format that is easy to crush and dissolve for aquarium use, following the same scored-tablet approach aquarists are familiar with from Fish Sulfa Forte.\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFlexible Bottle Sizes\u003c\/strong\u003e Available in 30-count and 60-count bottles with fresh expiration dates, giving hobbyists options for short treatments, quarantine setups, or multi-tank fish rooms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"fph-benefits\" class=\"fph-acc\"\u003e\n\u003csummary\u003e\n\u003ch2\u003eBenefits of Fix Sulfa for Fish\u003c\/h2\u003e\n\u003c\/summary\u003e\n\u003cdiv class=\"fph-acc-body\"\u003e\n\u003cul class=\"fph-card-list\"\u003e\n\u003cli\u003e\n\u003ch3\u003eDual-Action SMZ\/TMP Combination\u003c\/h3\u003e\n\u003cp\u003eFix Sulfa pairs sulfamethoxazole and trimethoprim (SMZ\/TMP), a combination aquarists use to help manage certain bacterial issues in ornamental fish when used as directed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eMade in the United States\u003c\/h3\u003e\n\u003cp\u003eFix Sulfa is made in the United States by Aqua Soma Labs as the current-production version of the discontinued Fish Sulfa Forte, with fresh expiration dates on every bottle.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eSupport for Common Aquarium Problems\u003c\/h3\u003e\n\u003cp\u003eAquarists commonly reach for fish sulfa tablets when dealing with symptoms associated with fin and tail rot, columnaris-type presentations, cotton wool disease, ulcer-like lesions, pop-eye, and other persistent bacterial signs in ornamental freshwater and saltwater fish.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eHelps With External and Internal Signs of Bacterial Stress\u003c\/h3\u003e\n\u003cp\u003eSMZ\/TMP tablets are often used in a hospital tank for visible skin sores, fin damage, and hemorrhagic septicemia, and in situations where fish show lethargy or reduced appetite alongside water-quality corrections and supportive care.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eConsistent 960 mg Tablet Strength\u003c\/h3\u003e\n\u003cp\u003eEach tablet provides a consistent \u003cstrong\u003e960 mg\u003c\/strong\u003e format, making it easier to plan repeatable amounts across different tank sizes. Available in 30- or 60-tablet bottles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eIntended for Ornamental Fish Use\u003c\/h3\u003e\n\u003cp\u003eFix Sulfa is intended for aquarium and ornamental fish use when used as directed, and the tablet format offers a straightforward option for hobbyists who prefer predictable, countable amounts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eHelpful for Quarantine and Hospital Tanks\u003c\/h3\u003e\n\u003cp\u003eTreating in a separate hospital or quarantine tank can help you observe fish more closely, control the amount more precisely, and reduce unnecessary exposure for healthy tank mates during treatment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"fph-dosage\" class=\"fph-acc\"\u003e\n\u003csummary\u003e\n\u003ch2\u003eUsage Guidelines \u0026amp; Instructions\u003c\/h2\u003e\n\u003c\/summary\u003e\n\u003cdiv class=\"fph-acc-body\"\u003e\n\u003cp\u003eThese steps follow the Fix Sulfa 960 bottle label directions for SMZ\/TMP use in ornamental aquarium fish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuick Usage Summary:\u003c\/strong\u003e\u003cbr\u003eDissolve \u003cstrong\u003eone (1) dose (one tablet)\u003c\/strong\u003e and add it for every \u003cstrong\u003e40 gallons (151 L)\u003c\/strong\u003e of water to be treated. Repeat every 24 hours with a partial water change between treatments for \u003cstrong\u003e5 to 10 days\u003c\/strong\u003e. Discontinue use if no improvement is noted after 5 days.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBefore You Dose:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"fph-card-list\"\u003e\n\u003cli\u003e\n\u003ch3\u003eMeasure Water Volume\u003c\/h3\u003e\n\u003cp\u003eCalculate actual water volume (account for substrate, decor, and fill level).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eUse a Hospital Tank\u003c\/h3\u003e\n\u003cp\u003eUse a hospital\/quarantine tank when possible for better control and observation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eRemove Carbon and UV\u003c\/h3\u003e\n\u003cp\u003eRemove activated carbon and other chemical media; turn off UV sterilizers during treatment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eBoost Aeration\u003c\/h3\u003e\n\u003cp\u003eIncrease aeration and surface agitation; keep temperature stable.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\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\u003eDissolve and Add the Dose\u003c\/h3\u003e\n\u003cp\u003eFully dissolve one (1) dose (one tablet) in a small cup of aquarium water, then add the dissolved dose to the treatment tank. Add \u003cstrong\u003eone tablet per 40 gallons (151 L)\u003c\/strong\u003e of water to be treated.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eRepeat Every 24 Hours\u003c\/h3\u003e\n\u003cp\u003eRepeat every \u003cstrong\u003e24 hours\u003c\/strong\u003e. Perform a partial water change between treatments throughout the treatment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eComplete the Treatment and Watch for Progress\u003c\/h3\u003e\n\u003cp\u003eContinue treatment for \u003cstrong\u003e5 to 10 days\u003c\/strong\u003e. Watch appetite, swimming behavior, fin condition, and any signs of stress. Discontinue use if no improvement is noted after 5 days. If fish appear worse or show severe stress, stop treatment and seek aquatic veterinary advice.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003ePost-Treatment Clean Up\u003c\/h3\u003e\n\u003cp\u003eAfter the treatment is complete, perform a partial water change and resume normal filtration. Replace activated carbon or chemical media if you removed it, and keep monitoring water parameters for several days to confirm stability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ctable class=\"fph-dose-table\"\u003e\n\u003ccaption\u003eFix Sulfa 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\"\u003eFix Sulfa 960 amount\u003c\/th\u003e\n\u003cth scope=\"col\"\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\u003e1\/4 tablet\u003c\/td\u003e\n\u003ctd\u003eSplit a scored tablet, or add 1\/4 of one dissolved tablet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 gallons (76 L)\u003c\/td\u003e\n\u003ctd\u003e1\/2 tablet\u003c\/td\u003e\n\u003ctd\u003eSplit a scored tablet, or add 1\/2 of one 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 (label standard)\u003c\/td\u003e\n\u003ctd\u003eDissolve one whole tablet\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 whole 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 whole tablets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe Fix Sulfa 960 label states one (1) dose (one tablet) per 40 gallons (151 L), which is about 24 mg of combined sulfamethoxazole and trimethoprim per gallon. The 40-gallon row is the exact label instruction; the other rows scale that same rate. For tanks under 40 gallons you can split a scored tablet, or dissolve one tablet in a measured cup of tank water and add the matching fraction for more accuracy. Dose by your treatment tank's water volume, not the number of fish, repeat once every 24 hours for 5 to 10 days, and follow the bottle label or your aquatic veterinarian 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\u003eWatch 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 all the recommended days so the infection does not return. Afterward, run a partial water change and put activated carbon back in to clear any leftover product.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"fph-info-card\"\u003e\n\u003ch3\u003eWhat You Need for a 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 Hospital tank treatment helps protect the display aquarium, keeps the amount consistent, and makes it easier to keep ammonia and nitrite at 0 during recovery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"fph-mechanism\" class=\"fph-acc\"\u003e\n\u003csummary\u003e\n\u003ch2\u003eHow Fix Sulfa Works\u003c\/h2\u003e\n\u003c\/summary\u003e\n\u003cdiv class=\"fph-acc-body\"\u003e\n\u003cp\u003eEach Fix Sulfa tablet pairs \u003cstrong\u003esulfamethoxazole 800 mg\u003c\/strong\u003e and \u003cstrong\u003etrimethoprim 160 mg\u003c\/strong\u003e (SMZ\/TMP). Dissolved and added to aquarium water as directed, the two ingredients work together to help slow the growth of certain bacteria.\u003c\/p\u003e\n\u003cp\u003eAlongside those two ingredients, each tablet includes standard ingredients that hold the tablet together and help it disperse properly in water. Aquarists use Fix Sulfa for fin and tail rot, ulcer-like lesions, columnaris, pop-eye, and other bacterial signs in ornamental freshwater and saltwater fish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"fph-safety\" class=\"fph-acc fph-acc--warn\"\u003e\n\u003csummary\u003e\n\u003ch2\u003eSafety and Tank Notes\u003c\/h2\u003e\n\u003c\/summary\u003e\n\u003cdiv class=\"fph-acc-body\"\u003e\n\u003cp\u003eIndividual fish can respond differently to treatment. For best results and safety, follow the label directions and monitor fish and water quality closely throughout the treatment.\u003c\/p\u003e\n\u003cul class=\"fph-card-list\"\u003e\n\u003cli\u003e\n\u003ch3\u003ePossible Side Effects in Fish\u003c\/h3\u003e\n\u003cp\u003eTemporary reduced appetite, mild lethargy or hiding behavior, and occasional water cloudiness during treatment. If fish show severe distress such as rapid gill movement, gasping at the surface, loss of balance, or lying on the bottom, stop treatment, increase aeration, and seek aquatic veterinary advice.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eStop Treatment If\u003c\/h3\u003e\n\u003cp\u003eFish show severe stress, rapid gill movement, gasping at the surface, loss of balance, or worsening symptoms. Increase aeration immediately and consult an aquatic veterinarian if signs do not stabilize.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eWater Quality and Biofilter Awareness\u003c\/h3\u003e\n\u003cp\u003eKeep aeration strong and monitor ammonia and nitrite closely during treatment. If parameters rise, perform partial water changes as needed to keep the treatment tank stable.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eFiltration During Treatment\u003c\/h3\u003e\n\u003cp\u003eRemove activated carbon and other chemical filtration media before dosing. Turn off UV sterilizers during treatment. Resume normal filtration after the treatment is complete.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eInvertebrates and Display Tanks\u003c\/h3\u003e\n\u003cp\u003eIf your system includes shrimp, snails, corals, or other invertebrates, treat fish in a separate hospital or quarantine tank whenever possible to reduce risk to the display ecosystem.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Warnings \u0026amp; Precautions\u003c\/h3\u003e\n\u003cul class=\"fph-card-list\"\u003e\n\u003cli\u003e\n\u003ch3\u003eAquarium Use Only\u003c\/h3\u003e\n\u003cp\u003eFix Sulfa is intended for ornamental aquarium fish only. \u003cspan class=\"fph-inline-warning\"\u003eIt is not for animals raised for food.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eNot for Food Fish\u003c\/h3\u003e\n\u003cp\u003eDo not use on fish raised for food. This product is made and labeled as an antibacterial treatment for ornamental aquarium fish only.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eHandling Note\u003c\/h3\u003e\n\u003cp\u003eAvoid contact with the dissolved product, wash your hands after handling, and wear gloves if needed. Keep the tablet contents and dissolved product off skin and out of eyes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eKeep Out of Reach\u003c\/h3\u003e\n\u003cp\u003eStore Fix Sulfa out of reach of children and pets. Use it only as directed on the product label.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eStorage\u003c\/h3\u003e\n\u003cp\u003eKeep the container tightly closed and store in a cool, dry place, away from direct sunlight and moisture. Check the expiration date and do not use tablets past it.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eDiscontinue If No Improvement\u003c\/h3\u003e\n\u003cp\u003eIf no improvement is noted after 5 days of treatment, discontinue use as stated on the label and re-evaluate the diagnosis or seek aquatic veterinary advice.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eDo Not Mix Treatments\u003c\/h3\u003e\n\u003cp\u003eAvoid combining Fix Sulfa with other treatments unless the product label explicitly allows it or an aquatic veterinarian advises it.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails id=\"fph-shipping\" class=\"fph-acc\"\u003e\n\u003csummary\u003e\n\u003ch2\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003c\/summary\u003e\n\u003cdiv class=\"fph-acc-body\"\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 same-day dispatch on orders placed before 1:30 p.m. CT (Monday through Friday). For full shipping details, please see 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\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-acc\"\u003e\n\u003csummary\u003e\n\u003ch2\u003eMore Fish \u0026amp; Bird Treatments\u003c\/h2\u003e\n\u003c\/summary\u003e\n\u003cdiv class=\"fph-acc-body\"\u003e\n\u003cdiv class=\"fph-info-grid\"\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Mox (Amoxicillin) 250\/500mg\u003c\/strong\u003e A treatment for fin rot, dropsy, ulcers, and other bacterial infections in ornamental fish. Available in 30-count and 100-count capsules. \u003ca href=\"https:\/\/finepethealth.com\/products\/fish-mox\"\u003eShop Fix Mox\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Zole (Metronidazole) 250\/500mg\u003c\/strong\u003e Targets anaerobic bacteria and protozoa including Hexamita and hole-in-the-head disease 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 ornamental 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 ornamental 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 bacterial 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 Pen (Penicillin) 500mg\u003c\/strong\u003e A penicillin treatment for bacterial infections 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 bacterial infections 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 href=\"https:\/\/finepethealth.com\/collections\/fish-bird-antibacterials\" rel=\"noopener\"\u003e\u003cstrong\u003eFish \u0026amp; Bird Antibacterials 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 href=\"https:\/\/finepethealth.com\/blogs\/fish-and-bird-antibacterials\" rel=\"noopener\"\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\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003csection id=\"fph-faq\" class=\"fph-section\"\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 fish sulfa forte?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFish Sulfa Forte was a Thomas Labs SMZ\/TMP treatment (sulfamethoxazole and trimethoprim) for ornamental aquarium fish. Thomas Labs discontinued it, and Fix Sulfa by Aqua Soma Labs is the current-production version with the same two ingredients in a 960 mg tablet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eWhat is Fix Sulfa used for?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Sulfa (SMZ\/TMP) is used by aquarists to help manage certain bacterial issues in ornamental aquarium fish when used as directed. It is commonly chosen for symptoms associated with fin and tail rot, ulcer-like lesions, pop-eye, and other persistent bacterial signs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eIs Fix Sulfa the same as fish bactrim?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eYes, in the sense that Bactrim is another name for the same sulfamethoxazole and trimethoprim combination. Hobbyists searching for fish bactrim or bactrim for fish are looking for an SMZ\/TMP tablet, and Fix Sulfa supplies sulfamethoxazole 800 mg with trimethoprim 160 mg per 960 mg tablet. The two ingredients work together against certain bacteria, which is why the pairing is described as dual-action.\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 Sulfa Forte, Aqua Sulfa and Fix Sulfa?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFish Sulfa Forte (Thomas Labs), FISHBIOTIC SMZ\/TMP and Aqua Sulfa are older names for the same sulfamethoxazole and trimethoprim tablet. Thomas Labs discontinued Fish Sulfa Forte, and Fix Sulfa by Aqua Soma Labs is the current-production version, with sulfamethoxazole 800 mg and trimethoprim 160 mg in the same 960 mg tablet format. The brand name and maker changed; the tablet and its intended use did not.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eWhat is inside each Fix Sulfa tablet?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eEach scored tablet contains \u003cstrong\u003esulfamethoxazole 800 mg\u003c\/strong\u003e and \u003cstrong\u003etrimethoprim 160 mg\u003c\/strong\u003e, which is where the 960 mg figure comes from. The rest of the tablet is standard ingredients that hold it together and help it disperse in water. Fix Sulfa is made and labeled only for ornamental aquarium fish, 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\u003eWhat is the fish sulfa dosage per gallon?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eThe Fix Sulfa 960 label directs one (1) dose (one tablet) per 40 gallons (151 L) of water to be treated, about 24 mg of combined sulfamethoxazole and trimethoprim per gallon. Repeat every 24 hours with a partial water change between treatments for 5 to 10 days, and discontinue use if no improvement is noted after 5 days. Because one tablet covers 40 gallons, smaller tanks need a fraction: split a scored tablet, or dissolve one tablet in a measured cup of tank water and add the matching share. Dose by the water volume of your treatment tank, not by the number of fish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eIs Fix Sulfa the same as Triple Sulfa for fish?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eNo. Triple Sulfa aquarium products combine three different sulfa compounds and are usually sold as a powder for the whole tank. Fix Sulfa is a two-ingredient tablet: sulfamethoxazole paired with trimethoprim, which is the SMZ\/TMP combination. They are not interchangeable, so follow the directions for the specific product you actually have.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eCan Fix Sulfa be used for dogs or cats?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Sulfa is labeled for \u003cstrong\u003eornamental aquarium fish only\u003c\/strong\u003e. Veterinarians do use sulfamethoxazole and trimethoprim in dogs and cats, but the correct amount depends on the animal's weight and the format differs from an aquarium tablet. \u003cstrong\u003eDo not give Fix Sulfa to a dog, cat or horse without a licensed veterinarian\u003c\/strong\u003e confirming the diagnosis and the amount. It is also 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\u003eWhere can I buy SMZ\/TMP fish tablets? Do Walmart or Tractor Supply sell them?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eYou can order Fix Sulfa, the current SMZ\/TMP fish tablet, directly from Fine Pet Health in 30-count and 60-count bottles of 960 mg tablets. General retailers such as Walmart, Tractor Supply, PetSmart and Petco do not carry the Aqua Soma Labs line, so a dedicated online supplier is the reliable route. Orders ship from our U.S. warehouse via USPS or UPS, with same-day dispatch on orders placed before 1:30 p.m. CT, Monday through Friday.\u003c\/p\u003e\n\u003ca class=\"fph-faq-link\" href=\"https:\/\/finepethealth.com\/collections\/fish-bird-antibacterials\" rel=\"noopener\"\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 Sulfa treat fungal, viral, or parasitic infections?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Sulfa (SMZ\/TMP) is an antibacterial treatment intended for certain bacterial issues. It is not designed for fungal, viral, or parasitic problems. If you suspect fungus, parasites, or mixed causes, consult an aquatic veterinarian or experienced aquarist to choose an appropriate treatment plan.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003c\/div\u003e","brand":"Aqua Soma Labs","offers":[{"title":"960-mg (30 Count)","offer_id":50744370856175,"sku":"405304","price":30.8,"currency_code":"USD","in_stock":true},{"title":"960-mg (60 Count)","offer_id":50744370888943,"sku":"322494","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0838\/2296\/9071\/files\/fish-sulfa-forte-960mg-30-count-fish-antibacterial..webp?v=1789229499","url":"https:\/\/myfishmox.com\/products\/fish-sulfa","provider":"My Fish Mox","version":"1.0","type":"link"}