Beckett Super Sludge Remover W/Barley, Natural Bacteria For Ponds and Water Gardens, 8 oz. is an ideal treatment to promote clear, clean water. The all-natural formula contains barley and natural bacteria that breaks down floating debris in ponds. This fast acting formula helps to prevent cloudy water, reduces odor and sludge waste from ponds. Add one level scoop per 200 gallons of pond water every 2 weeks. Safe for use in ponds with plants, fish and wildlife when used as directed.