MB 12 BP is a natural, non-toxic, blend of microorganisms designed to solve the problem of excessive nutrient content in contained bodies of water. When added to a lake, pond or other area of contained water, MB 12 BP will quickly populate the affected area and help break-down excessive organic matter and nutrient runoff, improve water clarity, reduce odors and restore a natural balance to the ecosystem. MB 12 BP is a biodegradable, environmentally friendly product and is non-toxic to humans, fish, beneficial aquatic organisms and wildlife.