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Fish Sulfa™ – Sulfamethoxazole/Trimethoprim 800/160 mg – 30 Count

$59.99 Regular price $69.99
Current Expiration Dates View the currently listed product families and date
Current listed expiration Selected Fish and Bird Product Families The applicable collections currently display the date shown here. 08/2027
Fish Mox & Mox Forte 08/2027
Fish Mox Clavulanate 08/2027
Fish Flex & Flex Forte 08/2027
Fish Flox & Flox Forte 08/2027
Fish Doxy 08/2027
Fish Zole & Zole Forte 08/2027
Fish Pen & Pen Forte 08/2027
Fish and Bird Zithro 08/2027
Fish Cin 08/2027
Fish Flucon 08/2027
Fish Sulfa Forte 08/2027
Fish Fungus 08/2027
Fish Levo 08/2027
Fish Min 08/2027
Inventory notice: Expiration dates may vary by supplier shipment, manufacturing batch, package quantity, strength, or variation. The date printed on the physical product received is the final product-specific expiration date.
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United States Shipping Only Eligible orders are accepted and shipped only within the U.S.
Approximately One Business Day Most eligible in-stock orders are prepared after authorization.

Estimated Transit Times — When Available at Checkout

Standard & USPS
  • Free Standard Shipping 7–10 days
  • USPS Priority Mail 2–5 days
  • USPS Ground Advantage 2–15 days
FedEx Services
  • FedEx Ground 5–7 days
  • FedEx 2Day 2 days
  • FedEx Overnight Next business day
Please note: Processing time is separate from carrier transit time. Delivery estimates begin after the carrier accepts the package and are not guaranteed. Final services, prices, and estimates are displayed during checkout.
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Fish Sulfa Forte™ – Sulfamethoxazole/Trimethoprim 800/160 mg – 30 Count

Fish Sulfa Forte™ provides a clearly identified combination of sulfamethoxazole 800 mg and trimethoprim 160 mg per tablet in a convenient 30-tablet bottle for expressly labeled ornamental and aquarium-fish applications.

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Each tablet contains a combined active-ingredient strength of 960 mg, consisting of 800 mg of sulfamethoxazole and 160 mg of trimethoprim.

The product is listed as USP grade and manufactured in the United States. It is supplied by Simple Pet Health in a clearly identified 30-count tablet package.

With more than 16 years of experience serving aquarium keepers, FishFlexFishMox is committed to clear product information, dependable sourcing, careful United States order processing, and responsive customer support.

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Fish Sulfa Forte Product Details

  • Product name: Fish Sulfa Forte™
  • Active ingredient 1: Sulfamethoxazole
  • Sulfamethoxazole strength: 800 mg per tablet
  • Active ingredient 2: Trimethoprim
  • Trimethoprim strength: 160 mg per tablet
  • Combined active-ingredient strength: 960 mg per tablet
  • Package quantity: 30 tablets
  • Product format: Tablets
  • Vendor: Simple Pet Health
  • Grade: Listed as USP grade
  • Country of manufacture: Listed as manufactured in the USA
  • Intended application: Expressly labeled ornamental and aquarium fish
  • Current listed expiration: 08/2027
  • Shipping coverage: United States only

Always verify the complete physical product label before handling or using Fish Sulfa Forte. Confirm both active ingredients, the strength of each ingredient, the combined strength, tablet count, intended species, expiration date, lot information, storage requirements, warnings, and current manufacturer instructions.

Two Active Ingredients in Every Tablet

Fish Sulfa Forte is a combination product containing two separately identified active ingredients in each tablet:

  • Sulfamethoxazole: 800 mg per tablet;
  • Trimethoprim: 160 mg per tablet.

Together, the two active ingredients provide a combined listed strength of 960 mg per tablet.

The product may therefore be described using several equivalent strength formats, including:

  • Sulfamethoxazole/Trimethoprim 800/160 mg;
  • Sulfamethoxazole 800 mg plus trimethoprim 160 mg;
  • 800 mg/160 mg combination tablets; or
  • 960 mg combined active ingredients per tablet.

These descriptions refer to the same two-ingredient strength and should not be interpreted as separate product options.

Verify the Complete 800/160 mg Strength

Before ordering, confirm that the product displays both active ingredients and both corresponding strengths.

The correct product information should identify:

  • Sulfamethoxazole as the first active ingredient;
  • 800 mg as the sulfamethoxazole strength;
  • Trimethoprim as the second active ingredient;
  • 160 mg as the trimethoprim strength;
  • Tablets as the physical product format; and
  • 30 tablets as the package quantity.

Do not select the product based only on the word “Sulfa.” Aquarium products with similar names may contain different active ingredients, concentrations, strengths, formats, or package quantities.

Convenient 30-Tablet Bottle

This product page is specifically for one bottle containing 30 Fish Sulfa Forte tablets.

Before completing checkout, verify that the cart and order confirmation display:

  • Fish Sulfa Forte™;
  • Sulfamethoxazole/Trimethoprim;
  • 800/160 mg;
  • 30 Count;
  • Tablets as the product format;
  • One bottle unless another package configuration is expressly stated;
  • The correct product price; and
  • The correct United States shipping destination.

The product title, selected package option, cart, checkout page, order confirmation, and physical bottle determine the exact quantity included with the purchase.

Never rely only on a product photograph when confirming the package count. Product images may remain in use after a manufacturer changes part of the label or packaging design.

Understanding the Fish Sulfa Forte Listing

Fish Sulfa Forte is the product-family name used for this sulfamethoxazole-and-trimethoprim combination aquarium product.

This listing should be identified using the following essential product details:

  • Product family: Fish Sulfa Forte;
  • First active ingredient: Sulfamethoxazole;
  • First ingredient strength: 800 mg;
  • Second active ingredient: Trimethoprim;
  • Second ingredient strength: 160 mg;
  • Physical format: Tablets; and
  • Package quantity: 30 tablets.

Products containing different active ingredients, strengths, package quantities, or physical formats should not be treated as interchangeable merely because they appear in the same broader aquarium-products category.

Browse the complete Fish Sulfa Forte (Sulfamethoxazole/Trimethoprim) collection for related product information and available package options.

USP-Grade Product

This Fish Sulfa Forte product is listed as USP grade.

The physical bottle and label supplied with the order remain the final product-specific references for:

  • The complete product name;
  • Both active ingredients;
  • The strength of each active ingredient;
  • The combined strength per tablet;
  • The tablet count;
  • The manufacturer or supplier;
  • The expressly labeled species and application;
  • The lot or batch number;
  • The expiration date;
  • The storage requirements; and
  • All applicable cautions and warnings.

Review the complete physical packaging before opening, handling, or using the product.

Manufactured in the USA

Fish Sulfa Forte is listed as manufactured in the United States.

Packaging design, bottle shape, label layout, supplier information, logo placement, and other visual details may change between production batches.

Always review the physical product supplied with the order to confirm that both active ingredients, the 800/160 mg strength, tablet count, intended application, lot information, expiration date, storage instructions, and warnings match the product ordered.

Current Listed Expiration: 08/2027

The current listed expiration date for Fish Sulfa Forte is 08/2027.

Expiration dates may change when new supplier shipments or production batches are received. The expiration date printed on the physical bottle supplied with the order is the final product-specific expiration date.

Different package quantities may come from separate production or inventory batches and may therefore display different lot numbers, packaging details, or expiration dates.

A specific production batch, lot number, label design, or expiration date is not guaranteed unless it has been expressly confirmed for the applicable order.

Customers who require expiration confirmation before purchasing may contact us through our Contact Us page.

Product Label and Packaging

Fish Sulfa Forte should arrive in its original, clearly labeled bottle or supplier-approved packaging.

The physical packaging may identify:

  • The complete Fish Sulfa Forte product name;
  • Sulfamethoxazole as an active ingredient;
  • 800 mg as the sulfamethoxazole strength;
  • Trimethoprim as an active ingredient;
  • 160 mg as the trimethoprim strength;
  • 30 tablets as the package quantity;
  • The expressly labeled ornamental-fish application;
  • The manufacturer or supplier;
  • The lot or batch number;
  • The expiration date;
  • Storage information; and
  • Important cautions and warnings.

Manufacturers and suppliers may update packaging details without prior notice, including:

  • Bottle shape, size, or color;
  • Cap or safety-seal design;
  • Label layout;
  • Typography;
  • Logo or branding placement;
  • Manufacturer or supplier information;
  • Lot-number placement; and
  • Expiration-date placement.

The product received may therefore look different from an older image while still matching the essential active ingredients, strength, tablet count, physical format, supplier, and expressly labeled application displayed on the current product page.

Inspect Fish Sulfa Forte After Delivery

Before opening or using Fish Sulfa Forte, inspect the shipping package, bottle, physical label, safety seal, tablets, package quantity, lot information, and expiration date.

Do not use the product if:

  • The shipping package or bottle is substantially damaged;
  • The bottle is broken, open, or leaking;
  • A required safety seal appears missing or compromised;
  • The physical product label is missing or unreadable;
  • Sulfamethoxazole is not identified as an active ingredient;
  • Trimethoprim is not identified as an active ingredient;
  • The strength does not display 800/160 mg;
  • The physical product is not in the listed tablet format;
  • The package quantity does not match the 30-count listing;
  • The expiration date has passed;
  • The tablets appear damaged, contaminated, or inconsistent with the listing; or
  • The supplied product does not otherwise match the order confirmation.

Keep the product, shipping box, shipping label, packing materials, and order documentation. Report any concern promptly through our Contact Us page and include clear photographs.

Important Ornamental-Fish Notice

Fish Sulfa Forte is intended only for aquarium fish, ornamental fish, pet fish, or another non-food aquatic species expressly identified on the current physical product label.

Unless the official product label expressly states otherwise, this product is:

  • For expressly labeled aquarium and ornamental-fish applications only;
  • Not intended for human use;
  • Not intended for human consumption;
  • Not offered as a human prescription medicine;
  • Not intended for fish raised for human consumption;
  • Not intended for food-producing aquatic animals; and
  • Not a substitute for professional aquatic-veterinary evaluation.

Never Use Fish Sulfa Forte for Humans

Fish Sulfa Forte and all other aquarium products offered through FishFlexFishMox must never be taken, administered, or used by humans.

FishFlexFishMox does not provide:

  • Human medical advice;
  • Human diagnoses;
  • Human prescriptions;
  • Human dosage recommendations;
  • Human pharmacy services; or
  • Human treatment plans.

Anyone experiencing a human health concern should contact a licensed physician or pharmacist.

In the event of accidental exposure or ingestion, contact an appropriate poison-control resource or emergency service immediately.

Do Not Automatically Use This Product for Other Animals

A product identified for ornamental fish should not automatically be used for dogs, cats, birds, livestock, or another animal species.

Even when an active-ingredient name appears familiar, appropriate animal care may depend on the species, size, weight, age, health history, environmental conditions, other products being used, the underlying concern, and qualified veterinary evaluation.

Use Fish Sulfa Forte only for an expressly identified species and application unless a qualified veterinarian provides appropriate direction and the use is permitted by applicable law.

Responsible Aquarium Care

Visible changes or health concerns in aquarium fish may have multiple possible causes, including water-quality issues, temperature instability, filtration problems, overcrowding, stress, nutrition, parasites, injuries, or other aquarium conditions.

The presence of visible signs does not automatically mean that a sulfamethoxazole-and-trimethoprim product is appropriate.

Before selecting or using a specialized aquarium product:

  • Test aquarium water quality;
  • Review water temperature and recent fluctuations;
  • Check filtration and aeration;
  • Observe all affected fish carefully;
  • Review recent aquarium changes or newly introduced fish;
  • Confirm appropriate stocking conditions;
  • Consider whether sensitive plants, invertebrates, or other aquarium organisms are present;
  • Read the complete current physical product label;
  • Confirm the expressly labeled species and application;
  • Avoid combining products without professional guidance; and
  • Consult a qualified aquatic veterinarian when the underlying concern is uncertain.

Follow the Exact Physical Product Label

Use and handle Fish Sulfa Forte only according to the current physical product label, manufacturer information, applicable warnings, and qualified veterinary guidance.

Do not rely on:

  • Information copied from an older product page;
  • Instructions supplied for another sulfamethoxazole strength;
  • Instructions supplied for another trimethoprim strength;
  • Information provided for a different package quantity;
  • Instructions supplied by another manufacturer or vendor;
  • Information associated with a single-ingredient product;
  • Advice from an unverified online source; or
  • Information intended for humans or another animal species.

FishFlexFishMox customer support can assist with factual product information displayed on our website but cannot diagnose an animal, prescribe a product, recommend individualized use, or create a treatment plan.

Avoid Unapproved Product Combinations

Do not combine Fish Sulfa Forte with other fish antibiotics, aquarium medications, parasite-control products, supplements, water treatments, or chemical products unless the combination is supported by the applicable product information or directed by a qualified veterinarian.

Using multiple aquarium products without appropriate professional guidance may:

  • Increase the possibility of adverse effects;
  • Create product interactions;
  • Affect aquarium water conditions;
  • Affect filtration or beneficial microorganisms;
  • Reduce product effectiveness;
  • Affect sensitive fish, plants, invertebrates, or other aquarium organisms; or
  • Make it more difficult to identify the underlying concern.

Storage and Handling

Store Fish Sulfa Forte according to the instructions supplied on the current physical product label and packaging.

Unless different instructions are supplied, keep the product:

  • In its original labeled bottle;
  • With the container tightly and securely closed;
  • At the temperature stated on the physical label;
  • Protected from excessive heat and moisture;
  • Away from direct sunlight;
  • Away from children and unauthorized users;
  • Away from pets and other animals;
  • Separate from food and human medicines; and
  • In a secure location that helps preserve product integrity.

Do not transfer the tablets into an unlabeled container. Retain the original packaging for product identification, cautions, expiration information, manufacturer information, and lot details.

United States Shipping Only

FishFlexFishMox accepts and ships eligible orders only within the United States. International shipping is not available.

Available United States shipping methods, costs, and estimated delivery times are displayed during checkout based on the destination, package size, product eligibility, order contents, and carrier availability.

Some products or delivery methods may not be available for every state, territory, military address, P.O. Box, or other United States destination.

Review our Customer Service page for additional order-processing and shipping information.

Returns and Product Integrity

For safety and product-integrity reasons, opened, used, unsealed, altered, or partially used products are generally not eligible for return.

An eligible return must normally remain:

  • Unused;
  • Unopened;
  • In its original condition;
  • In its original labeled packaging;
  • Complete with all included materials; and
  • Authorized before return shipment.

Review our Return Policy before returning any product. Unauthorized returns may be refused.

Why Buy Fish Sulfa Forte from FishFlexFishMox?

More Than 16 Years of Experience

Fish Flex Fish Mox.com has more than 16 years of experience serving aquarium keepers seeking specialized ornamental-fish and aquarium-care products.

Learn more about our store on the About Fish Flex Fish Mox.com page.

Clearly Identified Dual-Ingredient Formula

Both active ingredients and their individual strengths are clearly displayed to help customers verify the exact product before purchasing.

Clearly Identified 800/160 mg Strength

Each tablet is identified as containing sulfamethoxazole 800 mg and trimethoprim 160 mg, providing a combined strength of 960 mg per tablet.

Convenient 30-Tablet Bottle

This listing provides one clearly identified bottle containing 30 Fish Sulfa Forte tablets.

Clear Product Information

We work to clearly display active ingredients, strengths, package quantities, product formats, vendors, expiration information, storage requirements, and important product notices.

Careful United States Order Processing

Eligible orders are prepared carefully after payment authorization is received and any required order verification is completed.

Responsive Customer Support

Our support team can assist with factual product information, expiration questions, order status, United States shipping, tracking, eligible returns, and damaged-order concerns.

Explore Related Products and Collections

Browse the complete Fish Sulfa Forte (Sulfamethoxazole/Trimethoprim) collection for related product information and available package quantities.

Explore our broader Fish Antibiotics collection to compare additional active ingredients, strengths, formats, and package quantities.

Review our Fish Antibiotic Expiration Dates collection for current listed expiration information.

Order Fish Sulfa Forte with Confidence

Fish Sulfa Forte™ – Sulfamethoxazole/Trimethoprim 800/160 mg – 30 Count provides a clearly identified two-ingredient formula in a convenient 30-tablet bottle for expressly labeled ornamental and aquarium-fish applications.

With more than 16 years of experience, detailed product information, careful United States order handling, and responsive customer support, FishFlexFishMox is committed to providing aquarium keepers with a dependable and professional shopping experience.