Specially formulated to safely color reflecting ponds BLACK. A product that safely colors water while its enzymes assist the beneficial bacteria in your pond to create a healthy pond environment. Will NOT stain birds, fish, pond rocks or most concrete fountains once diluted. SAFE for humans, plants and aquatic life. Mixes completely in hours.
- 8 oz. (BIOBLK08) Treats up to 4,000 gals.
- 16 oz. (BIOBLK16) Treats up to 8,000 gals.