API PondCare Microbial Algae Clean is an alternative approach to algae control Want to clear algae from your pond Try Algae Clean This is the first bacterial algaecide registered with the Environmental Protection Agency (EPA). Improves dissolved oxygen levels and reduces noxious odorsBiological inhibitor of green water algaePromotes a clean pond environmentAlgae Clean consists of patented beneficial bacteria to help control green water algae in your pond. The bacteria help establish the biological filter and remove organic sludge and debris, keeping your pond clean and algae-free. API Microbial Algae Clean is safe to use in ponds and water gardens containing live plants and fish and is completely odor-free. Follow all directions for use.