Crystal Blue Lake & Pond Colorant - 1 gal.

Crystal Blue uses a proprietary formula to enhance your pond or lake with beautiful royal blue color. Pond dyes will improve your water quality and clarity, while maintaining its color. Used to darken water to slow the growth of unwanted algae and weeds. 100% safe for humans, fish, livestock, pets, birds, swimming, potable water and irrigation. Provides an aesthetically pleasing blue color to any pond. Treats 1 surface acre, 4 - 6 feet deep. Maintain color and clarity for up to 30 days.