Sanco Industries Crystal Blue Ocean Blue Pond Dye - Aqua Blue Color - 1 Gallon Step 1 of a 4 step program. Ocean Blue uses a proprietary formula to enhance your pond or lake with beautiful royal blue color all year long. Clears up muddy ponds and is 100% safe for humans, fish, livestock, pets, birds, swimming, potable water and irrigation. Maintains color and clarity up to 30 days in any season and helps settle out dissolved solids. 1 gallon treats 1 surface acre, 4-feet to 6-feet deep. Features Turquoise aqua shade color that clears up muddy ponds 100% safe for humans, fish, livestock, pets, birds, swimming, potable water and irrigation Maintains ocean blue color and clarity for up to 30 days Helps settle out dissolved solids 1 gallon treats 1 surface acre, 4 - 6 feet deep USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.