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Barley Extract does not kill existing algae
Long-term prevention usually requires better circulation and nutrient control
Includes three 12" x 24" filter pads
Prevents low oxygen fish kills
BioSafe Green Clean Granular Algaecide Bioballs Barley Extract does not killGreenClean Granular Pond Algaecide is a fast acting treatment that controls planktonic and filamentous algae in fish ponds, water gardens, fountains, and earthen ponds. This ready to use granular formula works quickly to eliminate algae and restore clear, healthy pond water. Safe for ponds with koi, goldfish, and trout, GreenClean begins working on contact, with visible results such as bubbling, bleaching, and algae breakdown often appearing shortly
