API Pond ALGAEFIX Algae Control, Effectively Controls Green Water Algae, String or Hair Algae and Blanketweed, Use as Directed When Algae Blooms and as Regular CareFeatures: \\n\\nContains one (1) API POND ALGAEFIX Algae Control 32 Ounce Bottle \\nEffectively controls green water algae, string and hair algae, blanketweed algae \\nControls green water to keep pond water clean and clear in ornamental ponds and water gardens \\nWill not harm fish and plants when used as directed. \\nDose every three days until algae is controlled and then treat weekly \\n \\nBrand: API