API Stress Zyme + 8 oz.

Stress Zyme improves the development of your biological filter and helps keep a naturally balanced aquarium. Contains 100 million live bacteria per teaspoonful. Continuous use of Stress Zyme assures a healthy biological filtration, good water quality and a clean aquarium. Treats up to 480 gallons. It is safe for freshwater and saltwater fish, invertebrates and plants. Stress Zyme is restricted and will not be shipped to Hawaii.

Non pathogenic bacterial cultures

Use API dosing cap included with bottle. To maintain a clean, healthy aquarium: add 1 tsp. (5ml) per 10 U.S. gallons weekly. For new aquariums, to help boost the biological filter: double the dose, use at start up, and for 2 additional weeks.