Nutrient and sediment loading from surface runoff, excessive buildup of organic matter from leaves, grass clippings, fish wastes, dead algae and aquatic vegetation, can lead to poor water quality, algae blooms, muck buildup, odor problems and an unbalanced pond ecosystem. Natural bacteria and enzymes each play a very different role in your pond or lake. Bacteria and Enzyme products help remedy these problems. Understanding how each item affects your pond will help make selecting the right products easier.