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Seachem SulfaPlex Broad Spectrum Antibiotic and Antifungal Fish Medication – 5g.
Seachem SulfaPlex™ is a powerful broad-spectrum antibacterial and antifungal medication formulated to effectively treat a wide range of bacterial, fungal, and protozoan infections in both freshwater and saltwater aquariums. Designed by Seachem’s team of aquatic experts, SulfaPlex is one of the most effective sulfa-based treatments, especially in marine environments, where disease control can be challenging due to sensitive organisms.
At its core, SulfaPlex contains sodium sulfathiazole, a sulfa-class antibiotic that works by inhibiting bacterial growth and preventing infection spread. It is rapidly absorbed through the fish’s gills, allowing for internal treatment without the need for medicated food in most cases. This makes it a highly efficient solution for fish suffering from fin rot, mouth rot, fungal infections, and loss of appetite caused by internal bacterial or protozoan diseases.
Unlike many conventional treatments, Seachem SulfaPlex is gentle on aquarium life and does not disrupt biological filtration, ensuring a safe and stable environment for both fish and beneficial bacteria. It is also compatible with Seachem Focus™ for preparing medicated food, allowing aquarists to target internal infections directly.
Treats bacterial, fungal, and protozoan infections effectively in freshwater and marine aquariums.
Highly effective in saltwater setups, where other sulfa drugs may fail.
Broad-spectrum action: Ideal for treating fin rot, mouth rot, and fungal outbreaks.
Absorbed through the gills for fast and direct internal treatment.
Safe for use with most fish, plants, and invertebrates.
Compatible with Seachem Focus to create medicated food for internal infections.
Minimal impact on water quality and beneficial bacteria.
Fin Rot: A common bacterial infection causing frayed, discolored, or decaying fins. SulfaPlex helps eliminate bacteria and promote tissue recovery.
Loss of Appetite: Often linked to internal bacterial infections or protozoan infestations; SulfaPlex aids in internal cleansing and restores feeding behavior.
Mouth Rot: Characterized by white, cotton-like growth around the mouth; SulfaPlex effectively treats the bacteria responsible and prevents tissue necrosis.
Fungal Infections: Prevents and cures external fungal growths that appear as cottony patches on the body or fins.
Dose: Use 1 level measure (included) per 40 liters (10 US gallons) of water.
Repeat every 3 days for up to 3 weeks or until infection subsides.
For internal infections, mix SulfaPlex with food using Seachem Focus™ to bind medication and enhance absorption.
Remove chemical filtration media such as carbon and Purigen® during treatment for best results.
Note: Avoid using multiple medications at once unless combining under expert guidance.
Aquarium infections can spread quickly and devastate fish populations. Seachem SulfaPlex provides a trusted, laboratory-tested, and reef-safe solution that works across a wide spectrum of pathogens. Its dual antibacterial and antifungal action makes it versatile enough for both preventative care and active treatment. Whether you’re a beginner aquarist or maintaining a professional reef tank, SulfaPlex ensures effective disease control without harming the biological balance of your aquarium.
Freshwater and Marine Fish
Reef Aquariums (with medicated food mix)
Community Tanks and Breeding Tanks
Treating Bacterial, Fungal, and Protozoan Infections
When your aquarium faces bacterial or fungal challenges, Seachem SulfaPlex stands as the most reliable choice. It’s fast-acting, easy to use, and scientifically proven to handle even the toughest aquatic infections. Keep your fish healthy, vibrant, and stress-free with the unmatched power of Seachem SulfaPlex — your essential safeguard for aquatic health.
