CrystalClear MuckOut one-ounce tablets contain highly concentrated natural bacteria and enzymes. This formulation is great for pond and lake muck removal along shorelines, docks, or beaches. CrystalClear MuckOut can also be used as a total pond and lake treatment to remove up to 2-inches of muck per month. Distribute evenly from shore or in a body of water once every two weeks when water temperatures are above 50°F. 64 tablets treat up to 1 surface acre for 3 months. Distribute pellets from shore and/or boat. MuckOut works best if distributed evenly from shore or in the body of water. Apply every two weeks when water temperatures are above 50deg; F. Wait three days after an algaecide and/or herbicide treatment to apply MuckOut. MuckOut may be applied to lakes and ponds used for irrigation and aquaculture. Water treated with MuckOut may be used for recreation, fishing, and other activities immediately after treatment. Safe for recreational ponds, horses, livestock, birds, pets, fish, wildlife, and the environment. Do not apply to water that will be used for human consumption.