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Seachem Sulfaplex 10gm

Sku: 729174

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Seachem Sulfaplex 10gm

Sku: 729174


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  • Treats many bacterial, fungal, and protozoan infestations
  • Broad spectrum antibiotic and anti-fungal medication
  • Most effective of the sulfa drugs in saltwater
  • Absorbed through gills

SulfaPlex™ is an effective and safe treatment for many bacterial, fungal and protozoan infestations in the aquarium. While it can be used in both freshwater and saltwater, and is particularly effective against the common bacterial and fungal infections of freshwater fish. It is also among the gentler antibiotics, and great for treating fish that are already stressed. It is easily removed with carbon and does not impair nitrification.



Types of Infections Treated



Dosing in Water

Remove all invertebrates - these are extremely sensitive to medication. Turn off UV filters, ozone filters, and remove chemical filtration like MatrixCarbon and Purigen. Use 2-3 measures (included) per every every 40 L (10 US gallons). Repeat this dose every 72 hours for a maximum of 3 weeks.

Dosing in Food

SulfaPlex™ is most effective when used in the water, but it can also be added to the food. Feed the medicated food mix (recipe below) every day until the infection clears or up to 3 weeks.

  • 1 scoop SulfaPlex™
  • 1 scoop Focus
  • 1 tbsp food (preferably pellets or frozen food)
  • A few drops of water if using a dry food

After Treating

When the treatment period is over, SulfaPlex™ can easily be removed using activated filter carbon likeMatrixCarbon™. It does not linger in the substrate or filter media of the tank.

Active ingredients: sulfathiazole (69%). Inactive ingredients: excipients (31%)

Additional Information

Additional Information

Manual No
Product Specs


Manufacturer Seachem


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