Apply the mixture by pouring or spraying evenly around the perimeter of the pond or lake

Safe for all animals

Naturally recycles fish waste

Environmentally friendly

Pond Biologics Blue Wing - Super Strength Blue Pond Dye feed-cl0-kasco-diffuser-check-valve Apply the mixture by pouringBlue Wing pond dye is a straight blue highly concentrated water dye that shades and protects, while adding a natural, brilliant color and an aesthetic appeal to your pond or lake. This powerful pond dye concentrate is stronger than any one gallon product or competitor's quart concentrate available on the market today and is safe for fish, pets, humans, livestock and carries no water use restrictions. 1 quart bottle treats up to 1 surface acre 4 6 feet