Stress Coat Marine is a fish and tap water conditioner containing aloe vera which promotes healing and regenerations of damaged fish tissue and forms a synthetic slime coat to help prevent electrolyte imbalance. Stress Coat Marine also removes chlorine, chloramines, and ammonia in tap water. Developed for use with a protein skimmer; will not cause foaming. Use when setting up a marine aquarium, adding or handling fish, changing water or when fish are damaged by injury or disease. Treats up to 946 gallons. Shipping weight: 1 1/4 lbs.