Stress Zyme Contains 100 million live bacteria per teaspoonful. Helps keep a naturally balanced aquarium by eliminating sludge build up preventing ammonia nitrite poisoning, low oxygen levels low pH. Continuous use assures an active biological filter, cleaner aquarium, healthier fish and good water quality. Use when setting up and maintaining an aquarium. For use in fresh and saltwater. Directions for use Shake well. New Aquariums First, use Stress Coat to remove chlorine. Next on the 1st, 7th and 14th days, add 10 ml of Stress Zyme per 10 U.S.gallons 38 L of water weekly. Thereafter and for Existing Aquariums To maintain good water quality and healthy biological filtration, add 5 ml of Stress Zyme per 10 U.S. gallons 38 L of water weekly. Stress Coat Use when setting up an aquarium, adding or handling fish, changing water or when fish are damaged by injury or disease. Contains Aloe Vera which promotes healing and regeneration of damaged fish tissue and forms a synthetic slime coat to help prevent electrolyte loss. Also removes chlorine, chloramines and ammonia, and detoxifies heavy metals in tap water. Directions for use To help repair damaged skin and fins and replace slime coating Add 10 mL 1 tsp per 10 U.S. gallons of aquarium water. To remove chlorine and cloramines Add 5 mL 1 tsp per 10 U.S. gallons of aquarium water. Made in the USA.