Fish Sulfa (Sulfamethoxazole/Trimethoprim) 960mg – 30 Tablets

Fish Sulfa Tablets offer a powerful dual-action antibiotic treatment combining sulfamethoxazole and trimethoprim to eliminate bacterial infections in aquarium fish. This synergistic formula targets both gram-positive and gram-negative pathogens commonly responsible for illnesses such as fin rot, tail rot, gill disease, and columnaris.

Trusted by aquarists and aquatic professionals, Fish Sulfa is ideal for both freshwater and saltwater environments, providing safe, fast relief while preserving your tank's ecosystem balance.

What Are the Benefits of Fish Sulfa Tablets for Fish?

• Dual-Action Antibiotic: Sulfamethoxazole and trimethoprim work together to inhibit bacterial growth and accelerate recovery.
• Broad-Spectrum Efficacy: Effective against multiple infections, including fin rot, gill disease, columnaris, and more.
• Fast Relief: Reduces symptoms within 24–48 hours of treatment and prevents infection spread.
• Safe for Aquatic Use: Specifically formulated for ornamental fish in both fresh and marine setups.
• Convenient Dosage Form: Easy-to-use tablets dissolve quickly, minimizing stress during administration.

How to Use Fish Sulfa Tablets

• Preparation: Remove activated carbon filters before treatment.
• Dosage: Add 1 tablet per 10 gallons of water daily. Treat for up to 5 days or as recommended by your aquatic vet.
• Post-Treatment: After completing the course, perform a 25% water change and resume normal filtration.

Active Ingredients

• Sulfamethoxazole (400 mg): Disrupts bacterial folic acid synthesis to halt growth.
• Trimethoprim (80 mg): Enhances the effect of sulfamethoxazole for broader protection.

Possible Side Effects

• Stress in sensitive species
• Temporary cloudiness in water
• Possible resistance with excessive or repeated use

Precautions for Safe Use

• Do not overdose – follow dosage guidelines strictly.
• Use only for ornamental aquarium fish – not for food animals or human use.
• Consult a vet if symptoms persist beyond treatment period.

Storage Instructions

• Store at 59°–86°F (15°–30°C) in a cool, dry place.
• Keep sealed tightly and protect from moisture and light.

Shipping & Returns

Shipping: We offer Ground, Express, Priority, and International options. View shipping policy.

Returns: Facing an issue? Review our refund policy for instructions on returns or exchanges.

FAQs – Fish Sulfa Tablets for Fish Antibiotics

What is Fish Sulfa used for?

It’s used to treat bacterial infections in fish, including fin rot, tail rot, columnaris, and gill disease.

Can it treat fungal infections?

No, Fish Sulfa is for bacterial infections only. Use antifungal treatments like Reef Flux for fungal issues.

How fast does it work?

Visible improvement is often seen within 24–48 hours. Complete recovery depends on infection severity and water quality.

Is it safe for plants and tank mates?

Generally safe for live plants. Use in community tanks with caution and monitor closely.

Can I use it in a quarantine tank?

Yes, ideal for isolating and treating infected fish safely.

Will it harm beneficial bacteria?

It may reduce beneficial bacteria. Replenish with bacterial supplements post-treatment.

Can I feed fish during treatment?

Yes, but avoid overfeeding to keep water parameters stable.

How should it be stored?

Store in original packaging in a dry, dark location at room temperature.

How can I prevent future infections?

Maintain water quality, avoid overcrowding, and quarantine new fish before introducing them to your tank.

Related Products

• Fish Doxy 100mg – 60 Capsules
• Fish Flex 250mg – 100 Capsules
• Fish Zole Metronidazole 500mg – 60 Tablets