Pond Dye, For Use In Water Gardens, Treatment Coverage Up to 1 acre-ft, Usage pH 5.5 to 8.5 pH, 5.5 to 9.5 pH, Container Type Bag, Container Size 16 oz, Formulation Concentrated Dye, Shelf Life 2 yr, Non-Toxic Yes, Concentration Type Concentrated, Dye Color Blue, Form Powder, Package Quantity 4