Bio-Black pond dye is safe to apply to ponds, fountains and water features. It is used for algae control and reduces noxious odors.
Bio-Black is a black pond dye used to control algae in ponds, fountains and water features. The dye blocks sunlight from reaching the algae thereby controlling the algae. Also, as an added bonus it includes special enzymes that help dissolve sludge, debris, & reduce odors.
1 oz. per 500 gallon pond
2 oz. per 1,000 gallon pond
Dilute black pond dye in a bucket of water and then add to pond, fountain or water feature.
Contents of bottle is 16 oz.