Pond and Fountain Protector - Formulated for fast moving water and multi-component filtration systems 100 gallons or more. Helps keep aeration/fountain pumps and water lines free from organic buildup for maximum efficiency. Designed for water that contains fish and aquatic plants. Prevents mineral deposits from forming and sludge build-up. Safe for amphibians and aquatic plants. Non-Toxic, All Natural Bacteria Free Enzymes. Application: Varies; follow label guidelines