Will not stain birds, fish, plants, pets or wildlife when applied at the recommended rate
Treated water will not stain exposed surfaces
Safe, non-toxic coloring formula
Midnight Blue is an organic dye that filters excess sunlight (UV light) that penetrates the pond water. This will assist in keeping excess algae from forming. Provides the pond with a pleasing natural blue appearance.
Clear Pond Midnight Blue 32-Ounce - B004XQGDMG