Cleaning Chemical, For Use In Ponds, Treatment Coverage Up to 1/2 acre-ft, Usage pH 5.5 to 8.5 pH, Container Type Bag, Container Size 8 oz, Formulation Proprietary Acid, Proprietary Bacterium, Proprietary Filler, Proprietary Stabilizer, Shelf Life 2 yr, Reapplication Time 3 wk, Non-Toxic No, Cleaning Functions Dissolves Sludge, Cleans Water, Features Macro-ZymeTM Also Reduces Nitrates and Phosphates, Form Powder, Usage Temperature 55 Degrees F to 110 Degrees F