Algae Control

16.9 fl. oz. Effectively combats algae blooms (green water, string and hari algae (spirogyra), and blanket weed (oedogonium). For use only in fountains and ornamental ponds with synthetic liners. Can be used with plants and ornamental fish when used as directed. Do not use in ponds with invertebrates or crustaceans, eg crabs, shrimps or crayfish.