API POND SIMPLY CLEAR Pond Water Clarifier provides a two-step approach for an incomparably clean and clear pond. API POND SIMPLY CLEAR Pond Water Clarifier quickly clears murky, cloudy pond water, and it breaks down pond sludge for maximum cleaning power. API POND SIMPLY CLEAR works by aggregating tiny suspended particles in pond water to form larger clusters which fall to the bottom of the pond where they are consumed by a super concentrated blend of beneficial bacteria. This solution is safe for fish and pond plants, as well as surrounding wildlife and pets, when used as directed. Exclusively for freshwater ponds, this solution is most effective when used every two weeks. With API POND products, it’s easy to keep a beautiful pond. For over 50 years, API has been creating innovative, research-driven solutions that make it easier to care for your pond. API POND Pond Treatment Supplies are designed to work in conjunction with each other to provide best results to control algae, promote healthy bacterial growth and help control and cure fish diseases and conditions such as ich and fin rot. They work to provide a safe, hospitable environment for fish such as koi, catfish, perch, goldfish and more. With API, you can spend more time admiring your fish, and less time scrubbing your pond. Make sure to use all products as directed in order to ensure the best results.