Crystal Blue Natural Pond Cleaner - 1 Gal. $47.50 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Description Description Crystal Blue Natural Pond Cleaner Clears Up Muck, Dead Vegetation, Fish Debris, and breaks down Leaves Gallon 100% non-toxic. Safe for livestock and fish. Natural bacteria and enzyme