EasyPro Sludge Remover is a safe bacteria treatment that targets organic material buildup at the bottom of the pond. This buildup commonly referred to as muck or sludge causes numerous issues such as noxious gases, murky water, and higher oxygen demand within the pond. EasyPro Sludge Remover features a self-sinking pellet design that allows the pellets to sink to the bottom of the pond. Perfect for precise and effective application! EasyPro Sludge Remover can be used for both spot treatment as well as a full pond treatment. Aside from helping digest sludge and muck the sludge remover also helps with water clarity and clearing murky waters. The increase in digestion of organic matter also lowers the oxygen demand in the pond as well as reduces problem-causing nitrate and phosphates. This product is fish, family and animal safe and can often dissolve several inches of sludge buildup per year, especially when used in a pond with an aeration system. Available in Sizes ABB10X (10 lbs.) treats up to a 2.5 acre pond. ABB25X (25 lbs.) treats up to a 6.25 acre pond. Note: For best results use when water temperatures are above 55° F.