API POND ECOFIX SLUDGE DESTROYER Pond Water Clarifier and Sludge Remover Treatment 1-Gallon Bottle (147C)Use twice a week for two weeks for initial dose , quick clean up and end of season, and once every other week for maintenance Helps to reduce overall pond maintenance and keep pond clean Breaks down dead algae and digests leaves and grass clippings Contains natural active ingredients to break down fish waste and consume pond sludge Contains one (1) API POND ECOFIX SLUDGE DESTROYER Pond Water Clarifier and Sludge Remover Treatment 1 Gallon Bottle Item