{"product_id":"fix-sulfa-960-mg-otc-fish-antibiotic","title":"Fix Sulfa (Fish Sulfa) SMZ\/TMP 960mg 30\/60ct Fish Antibiotic","description":"\u003cdiv class=\"fph-product-copy\"\u003e\n\u003c!-- ========== OVERVIEW ========== --\u003e\n\u003csection id=\"overview\" class=\"fph-section\"\u003e\n\u003ch2\u003eFix Sulfa (Fish Sulfa Forte) Tablets - 960 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=\"#overview\"\u003eOverview\u003c\/a\u003e \u003ca href=\"#what-changed\"\u003eFish Sulfa vs Fix Sulfa\u003c\/a\u003e \u003ca href=\"#benefits\"\u003eBenefits\u003c\/a\u003e \u003ca href=\"#dosage\"\u003eDosage\u003c\/a\u003e \u003ca href=\"#mechanism\"\u003eHow It Works\u003c\/a\u003e \u003ca href=\"#side-effects\"\u003eSide Effects\u003c\/a\u003e \u003ca href=\"#shipping\"\u003eShipping\u003c\/a\u003e \u003ca href=\"#faq\"\u003eFAQ\u003c\/a\u003e\u003c\/nav\u003e\n\u003cp\u003e\u003cstrong\u003eFix Sulfa (Fish Sulfa) SMZ\/TMP 960 mg\u003c\/strong\u003e is a trusted, pharmaceutical-grade, over-the-counter (OTC) fish antibiotic for ornamental aquarium fish. This sulfamethoxazole and trimethoprim combination (SMZ\/TMP) from Aqua Soma Labs serves as a current-production dual-ingredient antibiotic that aquarists rely on to help manage suspected bacterial infections in freshwater and saltwater aquariums.\u003c\/p\u003e\n\u003cp\u003eOften called Fish Sulfa, Fish Sulfa Forte, FISHBIOTIC SMZ\/TMP, or Aqua Sulfa in older hobby listings, Fix Sulfa is frequently sought as a reliable online alternative to discontinued Thomas Labs Fish Sulfa Forte. This SMZ\/TMP combination is commonly used by aquarists for issues like 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 caused by susceptible gram-negative and gram-positive bacteria (such as Aeromonas, Vibrio, or Streptococcus).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSMZ\/TMP\u003c\/strong\u003e (co-trimoxazole) is a dual-ingredient antibiotic combination that works by interfering with bacterial folate synthesis at two steps, which helps slow or stop the growth of susceptible bacteria. When used as directed for fish, sulfamethoxazole\/trimethoprim is best paired with stable water parameters, strong aeration, and good husbandry to support recovery. If you have been searching for \"fish sulfa forte\", \"bactrim for fish\", or \"SMZ-TMP 960 mg for fish\", Fix Sulfa is the current-production replacement available without a prescription.\u003c\/p\u003e\n\u003cp\u003eFix Sulfa provides a consistent \u003cstrong\u003e960 mg\u003c\/strong\u003e tablet format that is easy to crush and dissolve. It is available to buy online in bottles of \u003cstrong\u003e30 or 60 tablets\u003c\/strong\u003e with fresh expiration dates, giving hobbyists flexible options for quarantine tanks, hospital tanks, and multi-tank fish rooms.\u003c\/p\u003e\n\u003cp\u003eUse Fix Sulfa when you notice early signs of bacterial stress such as frayed or rotting fins, red streaking, inflamed sores, cloudy patches, lethargy, or a persistent loss of appetite that does not improve with basic water-quality corrections. Whenever possible, treat in a separate hospital or quarantine tank for better control and observation.\u003c\/p\u003e\n\u003cp\u003eAddressing potential bacterial issues early with SMZ\/TMP treatment, together with clean water and appropriate isolation when possible, helps support a stable, healthier aquarium environment.\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 Sulfa ships directly from our U.S. 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 only\u003c\/strong\u003e. It is \u003cstrong\u003enot for human consumption\u003c\/strong\u003e or for \u003cstrong\u003eanimals used for food\u003c\/strong\u003e. We \u003cstrong\u003edo not sell or recommend this product for human use\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003c!-- ========== WHAT CHANGED ========== --\u003e\n\u003csection id=\"what-changed\" class=\"fph-section\"\u003e\n\u003ch2\u003eFish Sulfa Forte vs Fix Sulfa: What Changed?\u003c\/h2\u003e\n\u003cp\u003eIf you previously purchased Thomas Labs Fish Sulfa Forte, FISHBIOTIC SMZ\/TMP 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 Active Ingredients\u003c\/strong\u003e Fix Sulfa contains sulfamethoxazole 800 mg and trimethoprim 160 mg per tablet (SMZ\/TMP 960 mg), the same dual-ingredient formulation 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 manufactures Fix Sulfa as a current-production replacement for older SMZ\/TMP fish antibiotic brands that have been discontinued or renamed. The active ingredient composition and intended use remain 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 dose 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 treatment courses, quarantine setups, or multi-tank fish rooms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003c!-- ========== BENEFITS ========== --\u003e\n\u003csection id=\"benefits\" class=\"fph-section\"\u003e\n\u003ch2\u003eBenefits of Fix Sulfa for Fish\u003c\/h2\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 combines sulfamethoxazole and trimethoprim (SMZ\/TMP), a paired approach that interferes with bacterial folate production at two steps to help manage susceptible bacterial issues when used as directed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eNo Prescription Required\u003c\/h3\u003e\n\u003cp\u003eFix Sulfa is available over the counter (OTC) for aquarium and ornamental fish. You can order online and have it shipped directly without needing a veterinary prescription.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eBroad-Spectrum Support 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 dosing 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 dosing.\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 dosing 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\/section\u003e\n\u003chr\u003e\n\u003c!-- ========== DOSAGE ========== --\u003e\n\u003csection id=\"dosage\" class=\"fph-section\"\u003e\n\u003ch2\u003eDosage Guidelines \u0026amp; Instructions\u003c\/h2\u003e\n\u003cp\u003eLooking for a clear dosage for fish? The steps below follow the Fix Sulfa 960 bottle label directions for SMZ\/TMP use in ornamental aquarium fish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDosage Quick Reference:\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\u003e5-10 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\u003cp\u003eCalculate actual water volume (account for substrate, decor, and fill level).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\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\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\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. Dose at \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 dosing every \u003cstrong\u003e24 hours\u003c\/strong\u003e. Perform a partial water change between treatments throughout the course.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eComplete the Course and Watch for Progress\u003c\/h3\u003e\n\u003cp\u003eContinue treatment for \u003cstrong\u003e5-10 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 course 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\u003cp class=\"fph-tip\"\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Hospital tank treatment helps protect the display aquarium, keeps dosing consistent, and makes it easier to keep ammonia and nitrite at 0 during recovery.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003c!-- ========== HOW IT WORKS ========== --\u003e\n\u003csection id=\"mechanism\" class=\"fph-section\"\u003e\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cul class=\"fph-card-list\"\u003e\n\u003cli\u003e\n\u003ch3\u003eActive Ingredients (each tablet)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSulfamethoxazole 800 mg\u003c\/strong\u003e and \u003cstrong\u003eTrimethoprim 160 mg\u003c\/strong\u003e (SMZ\/TMP, also known as co-trimoxazole). This paired combination works at two steps in bacterial folate synthesis, which helps slow the growth of susceptible bacteria when used as directed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eInactive Ingredients\u003c\/h3\u003e\n\u003cp\u003eTablet excipients that help keep the active ingredients stable and allow the tablet to disperse properly when dissolved and added to aquarium water as directed. Inactive ingredients are not specified in the active-ingredient panel.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003c!-- ========== SIDE EFFECTS ========== --\u003e\n\u003cdiv id=\"side-effects\" class=\"fph-panel\"\u003e\n\u003ch2\u003eSide Effects \u0026amp; Safety Tips\u003c\/h2\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 course.\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 course 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 aquarium and ornamental fish only. \u003cspan class=\"fph-inline-warning\"\u003eIt is not for human use\u003c\/span\u003e and not for animals raised for food.\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 intended for human consumption. This product is manufactured, packaged, and labeled as an OTC fish antibiotic for ornamental aquarium fish only.\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. This is a fish antibiotic and should only be used 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 in a cool, dry place away from direct sunlight.\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 Medications\u003c\/h3\u003e\n\u003cp\u003eAvoid combining Fix Sulfa with other antibiotics or medications 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\u003chr\u003e\n\u003c!-- ========== SHIPPING ========== --\u003e\n\u003csection id=\"shipping\" class=\"fph-section\"\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 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\/section\u003e\n\u003chr\u003e\n\u003c!-- ========== FAQ ========== --\u003e\n\u003csection id=\"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 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 susceptible 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\u003eWhat is the difference between Fish Sulfa Forte 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 brand names for SMZ\/TMP fish antibiotic products. Fix Sulfa by Aqua Soma Labs is the current-production replacement. It contains the same two active ingredients (sulfamethoxazole 800 mg and trimethoprim 160 mg) in the same 960 mg tablet format.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eIs Fix Sulfa a replacement for Aqua-SMZ\/TMP?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eYes. If you previously purchased Aqua-SMZ\/TMP or similar legacy SMZ\/TMP products for ornamental fish, Fix Sulfa provides the same active ingredient combination (sulfamethoxazole and trimethoprim, 960 mg per tablet) under updated branding from Aqua Soma Labs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eDo I need a veterinary prescription to buy Fix Sulfa?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eNo. Fix Sulfa is available as an over-the-counter (OTC) fish antibiotic for ornamental aquarium fish. You can order online without a veterinary prescription.\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 antibiotic tablets online?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eYou can buy Fix Sulfa (SMZ\/TMP 960 mg) directly from Fine Pet Health. Orders placed before 1:30 p.m. CT (Mon-Fri) typically ship the same business day from our U.S. warehouse.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eIs Fix Sulfa a human Bactrim or Septra alternative?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eNo. \u003cstrong\u003eFix Sulfa is not a human Bactrim or Septra alternative.\u003c\/strong\u003e While it contains the active ingredients sulfamethoxazole and trimethoprim (SMZ\/TMP), this product is manufactured, packaged, and labeled strictly as an over-the-counter (OTC) fish antibiotic for ornamental aquarium fish only. \u003cspan class=\"fph-inline-warning\"\u003eIt must never be taken by humans\u003c\/span\u003e, prescribed to yourself, or given to 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 are the active ingredients in each Fix Sulfa tablet?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eEach tablet contains \u003cstrong\u003esulfamethoxazole 800 mg\u003c\/strong\u003e and \u003cstrong\u003etrimethoprim 160 mg\u003c\/strong\u003e (SMZ\/TMP), a paired combination also known as co-trimoxazole.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eWhat is the Fix Sulfa dosage for fish?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFollow your bottle label directions. The Fix Sulfa 960 label instructions state: dissolve and add \u003cstrong\u003eone (1) dose (one tablet) per 40 gallons (151 L)\u003c\/strong\u003e of water to be treated, \u003cstrong\u003erepeat every 24 hours\u003c\/strong\u003e with a \u003cstrong\u003epartial water change between treatments\u003c\/strong\u003e for \u003cstrong\u003e5-10 days\u003c\/strong\u003e, and \u003cstrong\u003ediscontinue use if no improvement is noted after 5 days\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eShould I treat in the main tank or a hospital tank?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eA hospital or quarantine tank is recommended whenever possible. It makes dosing easier, helps you monitor fish closely, and can reduce disruption to the display aquarium's biofilter and tank mates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eDo I need to remove activated carbon or turn off UV during treatment?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eYes. Activated carbon and other chemical media can remove medications from water, and UV sterilizers may reduce medication availability. Remove carbon\/chemical media and turn off UV during treatment, then resume normal filtration after the course is complete.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eWill Fix Sulfa harm beneficial bacteria in the aquarium?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAny antibiotic treatment can affect beneficial filter bacteria, especially if used in the main tank. Monitor ammonia and nitrite closely, maintain strong aeration, and perform partial water changes as needed. Using a hospital tank helps protect the main biofilter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eDo I need water changes during treatment?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eYes. The label directions specify a partial water change between treatments during the course. Water changes also help keep ammonia and nitrite under control, especially in a hospital tank.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eCan I feed my fish during treatment?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eIf your fish are still eating, offer small amounts and avoid overfeeding to protect water quality. If appetite drops during treatment, focus on stable water conditions and remove uneaten food promptly.\u003c\/p\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 antibiotic intended for susceptible 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\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eIs Fix Sulfa safe for betta fish and small aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eBettas and other small-tank fish can be treated with Fix Sulfa, but accurate dosing is especially important in smaller volumes. Measure your actual water volume carefully and use a hospital container for best results. Monitor closely for any signs of stress.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eDoes Fix Sulfa work in saltwater aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eSMZ\/TMP tablets can be used in saltwater setups when treating ornamental fish. If your system includes corals, invertebrates, or a refugium, treat fish in a separate hospital or quarantine tank to reduce risk to the display ecosystem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eCan I use Fix Sulfa in a planted tank or with shrimp and snails?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eIf your system includes sensitive plants, shrimp, snails, corals, or other invertebrates, it is best to treat fish in a separate hospital or quarantine tank. This reduces risk to the display ecosystem and helps keep conditions stable during treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eCan I combine Fix Sulfa with other fish medications?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAvoid combining Fix Sulfa with other antibiotics or medications unless the product label explicitly allows it or an aquatic veterinarian advises it. Mixing medications can increase stress on fish and make it harder to identify what is working.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eWhat if my fish are not improving after treatment?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eIf no improvement is noted after 5 days, discontinue use as stated on the label. Re-check water parameters, confirm the likely cause of symptoms, and seek aquatic veterinary advice or consider an alternative approach based on a more accurate diagnosis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eHow should I store and dispose of Fix Sulfa tablets?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eKeep the container tightly closed and store in a cool, dry place away from direct sunlight. Keep out of reach of children and pets. For disposal, follow your local guidelines for unused medications. Do not flush tablets or pour dissolved medication into natural waterways.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003c!-- ========== MORE FISH ANTIBIOTICS ========== --\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003ch2\u003eMore Fish \u0026amp; Bird Antibiotics\u003c\/h2\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 broad-spectrum penicillin-type fish antibiotic for fin rot, dropsy, ulcers and other bacterial infections. Available in 30-count and 100-count capsules. \u003ca href=\"https:\/\/finepethealth.com\/products\/fix-mox-amoxicillin-capsules-fish-antibiotics\"\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\/fix-zole-250-metronidazole-250mg-60-doses\"\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 tetracycline-class fish and bird antibiotic effective against columnaris, respiratory infections and Mycoplasma. Available in 30-count and 60-count tablets. \u003ca href=\"https:\/\/finepethealth.com\/products\/fix-doxy-doxycycline-100mg-30-tablets\"\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 macrolide fish and bird antibiotic for fin rot, columnaris, gill disease and avian respiratory concerns. Available in 12-count and 30-count tablets. \u003ca href=\"https:\/\/finepethealth.com\/products\/fix-zithro-azithromycin-250\"\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 lincosamide fish antibiotic commonly used for gram-positive bacterial infections including skin and soft tissue concerns in ornamental fish. \u003ca href=\"https:\/\/finepethealth.com\/products\/fix-cin-clindamycin-150-fish-antibiotic\"\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-type fish and bird antibiotic for gram-positive bacterial infections in ornamental fish and non-food pet birds. \u003ca href=\"https:\/\/finepethealth.com\/products\/fix-pen-500mg-otc-fish-bird-penicillin\"\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 first-generation cephalosporin fish and bird antibiotic for fin rot, ulcers and bacterial skin infections in ornamental fish. \u003ca href=\"https:\/\/finepethealth.com\/products\/fix-flex-cephalexin-fish-bird-antibiotic\"\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 fluoroquinolone fish and bird antibiotic for gram-negative bacterial infections including fin rot, ulcers, columnaris and septicemia in ornamental fish. \u003ca href=\"https:\/\/finepethealth.com\/products\/fix-flox-ciprofloxacin-500\"\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-antibiotics\"\u003e\u003cstrong\u003eFish \u0026amp; Bird Antibiotics 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-antibiotics\"\u003e\u003cstrong\u003eFish \u0026amp; Bird Antibiotics Blog\u003c\/strong\u003e\u003c\/a\u003e for practical dosing 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":"960-mg (30 Count)","offer_id":51178809262365,"sku":"405308","price":59.99,"currency_code":"USD","in_stock":true},{"title":"960-mg (60 Count)","offer_id":51178809295133,"sku":"322493","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/3863\/5037\/files\/fix-sulfa-forte-antibiotic-960mg-30-count-fish-medication..webp?v=1776421581","url":"https:\/\/finpetmeds.com\/products\/fix-sulfa-960-mg-otc-fish-antibiotic","provider":"FINPETMEDS","version":"1.0","type":"link"}