Stress Zyme+ Water Conditioner 8 Oz.

API Stress Zyme+ Biological Filtration Booster Used Regularly Will Keep Your Fish Healthy, Your Water Quality Good, Your Aquarium Cleaner and Your Biological Filter Active. Contains 300 million live bacteria per teaspoon. Glad they didn't make me count them! Approved for freshwater and saltwater tanks. For new tanks use 10 ml per 10 gal. water. For regular use use 5 ml per 10 gal. water. 8 Oz. (240 ml).