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Fish Sulfa - Sulfamethoxazole/Trimethoprim 960mg 30 Tablets

$59.99 $69.99

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Check The Latest Expiration Dates

Updated 05/21/2025

Looking for the freshest and most reliable fish antibiotics online? Whether you're stocking up on Fish Mox, Fish Flex, Fish Zole, or Fish Sulfa, knowing the expiration dates is essential for ensuring the effectiveness of your aquarium medication. We've created this regularly updated expiration list so you can shop confidently. Don't risk outdated meds—compare your current product with the latest fish antibiotics expiration dates from trusted sources like Thomas Labs Pets.

From broad-spectrum fish antibiotics like amoxicillin, ciprofloxacin, and doxycycline, to advanced treatments like fluconazole and metronidazole, we’ve got you covered. Make sure your fish meds are safe, current, and fully potent with the latest updates below.

Fish Antibiotics Expiration Dates

Fish Mox - Amoxicillin 500 mg 100 Capsules – Expires: 08/2027
Fish Mox - Amoxicillin 250 mg 100 Capsules – Expires: 05/2027
Fish Zole - Metronidazole 250 mg 60 Tablets – Expires: 12/2026
Fish Zole - Metronidazole 500 mg 60 Tablets – Expires: 02/2027
Fish Flex - Cephalexin 250 mg 100 Capsules – Expires: 04/2026
Fish Flex - Cephalexin 500 mg 100 Capsules – Expires: 06/2027
Fish Doxy - Doxycycline 100 mg 30 Capsules – Expires: 02/2026
Fish Doxy - Doxycycline 100 mg 60 Capsules – Expires: 06/2026
Fish Pen - Penicillin 500 mg 30 Tablets – Expires: 06/2026
Fish Pen - Penicillin 500 mg 60 Tablets – Expires: 06/2026
Fish Flox - Ciprofloxacin 500 mg 30 Capsules – Expires: 04/2027
Fish Flox - Ciprofloxacin 500 mg 60 Capsules – Expires: 04/2027
Fish Sulfa - Sulfamethoxazole & Trimethoprim 960 mg 30 Tablets – Expires: 12/2028
Fish Sulfa - Sulfamethoxazole & Trimethoprim 960 mg 60 Tablets – Expires: 12/2028
Fish Zithro - Azithromycin 250 mg 30 Tablets – Expires: 06/2027
Fish Cin - Clindamycin 150 mg 100 Capsules – Expires: 08/2026
Reef Flux - Fluconazole 200 mg 10 Capsules – Expires: 02/2027

Aqua Lab

Thomas lab

SKU: AS-10008

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Product Description
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Fish Sulfa Forte - Sulfamethoxazole 800mg & Trimethoprim 160mg (30 Tablets) – Broad-Spectrum Aquarium Antibiotic

Dual-Action Treatment for Bacterial Infections in Aquarium Fish

Fish Sulfa Forte, by Thomas Labs, is a powerful broad-spectrum antibiotic designed to combat serious bacterial infections in aquarium fish. Each tablet contains 800 mg of sulfamethoxazole and 160 mg of trimethoprim, providing a synergistic dual-action approach that both stops bacterial growth and eliminates harmful bacteria. Ideal for treating fin rot, columnaris, septicemia, and gill disease, this trusted fish antibiotic is formulated for both freshwater and saltwater aquariums, ensuring safe and effective treatment.

For those looking for broad-spectrum fish antibiotics, aquarium-safe bacterial treatments, or antibiotic solutions for fin rot, explore more at Aqua Antibiotics, The Fish Aid, and Fishick.

Key Benefits

✔ Dual-Action Formula: Combines sulfamethoxazole & trimethoprim for a potent bacterial defense.
✔ Broad-Spectrum Antibiotic: Effectively treats fin rot, septicemia, gill disease, and other bacterial infections.
✔ Safe for Aquatic Environments: Designed for both freshwater & saltwater aquariums without disrupting the ecosystem.
✔ Compact & Efficient: The 30-tablet pack is perfect for small to medium aquarium setups.
✔ Trusted Quality: Manufactured by Thomas Labs, a leader in high-quality fish antibiotics.

Instructions

Purpose: Fish Sulfa Forte is used to treat bacterial infections in aquarium fish, including columnaris, fin rot, and other gram-positive and gram-negative infections.

Dosage:

Add 1 tablet per 20 gallons of aquarium water.
Repeat every 24 hours for 5-10 days, depending on the infection's severity.

Cautions:

Not for human use.
Remove activated carbon from aquarium filters during treatment to enhance effectiveness.
Perform partial water changes (20-25%) between doses to maintain water quality.

For further details, consult the Fish Antibiotics Guide.