An Algaecide/Herbicide/Cyanobacteriocide ideal for thick-walled filamentous algae, colonial planktonic algae, Chara and copper-sensitive vascular aquatic plants. This product controls planktonic (suspended), filamentous (mat forming), and benthic (bottom-growing) forms. See label for full list. Has no general water use restrictions at label rates. Active ingredient is 9.0% copper as elemental (copper-ethanolamine) containing an emulsified surfactant/penetrant. Application rate is 0.6 to 3.0 gallons per acre-ft. Product must be diluted prior to use.