Safely Colors Pond Water Blue. A safe, nontoxic water conditioner that creates a beautiful blue hue in garden pond water. As it shades the water blue, it protects plants and fish from extreme sunlight by reducing light (UV) penetration into pond water.
Details: If too much is used, do a 30% water change. Can put a garden hose in the water and overflow the pond. Be sure to dechlorinate the new water. Introduce with an eyedropper. Do not overuse as extreme darkening of water may reduce too much sunlight. May stain cement ponds and other objects blue.
Treats 4800 gal