API POND ALGAEFIX – Helps resolve algae problems and controls the formation of new algae; works fast without harm to fish, aquatic plants, surrounding wildlife, or pets when used as directed; includes 64 fl oz for treating up to 19,200 gallons

Fast and Effective – Controls most types of algae, including green water (Chlorella), string and hair algae (Cladophora), blanket weed algae (Oedogonium) in ponds, koi ponds, and fountains

Safety First – EPA-registered and copper-free formula is safe for fish and plants when used as directed and won't disrupt beneficial bacteria or accumulate in pond sediment

How to Use – Ensure that the pond/fountain has vigorous aeration; mix thoroughly into the pond/fountain and disperse evenly; repeat every 3 days until algae is controlled, then dose weekly to keep ponds/fountains clear and reduce maintenance​

Why API Products? – For over 60 years, we've been a leader in the aquatics industry, developing and perfecting products and solutions for indoor aquariums and outdoor ponds. Today, our family of products includes treatments, testing, and nutrition.

Safe for fish, plants and wild life

for use in ponds, fountains and waterfalls

Effectively controls green water algae blooms, string algae and blanketweed

Can be used in ponds with plants

8 oz. bottle