Sulfathiazole is an effective and safe treatment for many bacterial, fungal and protozoan infestations in the aquarium. Usual dose is 250 mg per 40 L (10 gallons), but dose may be increased up to four-fold. Easily removed with carbon and does not impair nitrification. Contains sulfathiazole DIRECTIONS: Use 2 to 3 measures (each about 100mg) for every 40 L (10 gallons). Measurer is included. Repeat every 3 days until symptoms disappear. Turn off UV, ozone, and chemical filtration.
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