GREENCLEANFX LIQUID ALGAECIDE, Alternative to copper-based products, Prevention and control of string algae and planktonic algae (pea soup), Reduces organic build-up and noxious odors including hydrogen sulfide, Sinks to bottom- perfect for deeper waters, Works up to 48 hours after application, , UPC : 188716000023, Size : 16 FLUID OUNCE, Product Type : Pond - Water Treatment And Acc / Water Treatment Natural SKU: BC014983