Crystal Blue uses a proprietary formula to enhance your pond or lake with beautiful royal blue color all year long.
- Clears up muddy ponds
- 100% safe for humans, fish, livestock, pets, birds, swimming, potable water and irrigation
- Maintain color and clarity for up to 30 days
- Helps settle out dissolved solids
- 1 gallon treats 1 surface acre, 4 - 6 feet deep