Outdoor Water Solutions PSP0176 Lake and Pond Dye Deep Blue

If you're looking for a highly concentrated liquid black dye for your ponds, we've got it. This product is equivalent to other companies one-gallon containers. Pond dye helps prevent weeds and algae from growing by naturally blocking out the sun's harmful u.v. rays. A must have to naturally keep your pond weed free and also add an attractive rich black color to your pond. Product is safe for recreational ponds, horses, cattle, birds, fish wildlife and the environment. Each container treats 1 acre of a pond 4-feet, 6-feet deep. Made in U.S.A.