PondCare AlgaeFix Algae Control for Ponds - 16 oz

API Pond ALGAEFIX Water Treatment. 16oz - Concentrate - Treats 4 800gal Fast-acting formula works to control algae growth by keeping water clean and clear. The formula controls green water algae string or hair algae and blanketweed but will not harm fish or plants when used as directed. Ponds should have adequate aeration to maintain sufficient oxygen. Do not use with freshwater crustaceans Concentrate.