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

Available Sizes

• 8 oz. (BIOBLK08) Treats up to 4,000 gals.
• 16 oz. (BIOBLK16) Treats up to 8,000 gals.