API Ecofix Sludge Destroyer is a powerful bacterial cleaner designed to enhance pond maintenance by effectively breaking down fish waste and dead algae. This concentrated liquid formula not only helps eliminate sludge build-up but also works to increase the concentration of dissolved oxygen in the water, resulting in cleaner, clearer pond water and a healthier ecosystem for your pond fish. Suitable for use in both standard garden ponds and saltwater ponds, this product is an essential addition to your pond care routine. It contains natural active ingredients to break down fish waste and consume pond sludge, break down dead algae and digests leaves and grass clippings. Use twice a week for two weeks for initial dose, quick clean up and end of season and once every other week for maintenance.