AquaVet Algae Control is effective in controlling a broad range of algae including: Chara, Spirogyra, Cladophora, Ulothrix, and Oscillatoria. In addition, AquaVet Algae Control is effective in controlling rooted and floating aquatic plants such as Hydrilla, Potomogeten sp., and Water Hyacinth. The formulation of AquaVet Algae Control protects against the precipitation of copper with carbonates and bicarbonates in the treated water and results in increased time of exposure for true residual activity. In addition, this formulation allows for application at any time ? including overcast/cloudy conditions as well as during nighttime hours. For best results, apply when livestock water consumption is low or watering area is not in use. FOR USE IN: Lakes; potable water reservoirs; swimming areas; farm, fish, industrial, golf course, ornamental and irrigation ponds; crop and non-crop irrigation conveyance systems; canals, ditches, and laterals; fish hatcheries, livestock watering tanks.