Take out the bad and make room for the good with GreenClean Algaecide Tablets and GreenClean Liquid Bacteria. A healthy pond is a beautiful pond! Avoid algae build up, decaying, organic debris, and high nutrient levels that can create an unhealthy environment for fish and aquatic plants. Not only can this product eliminate any unsettling odors, but it is an all season solution so your pond can be illuminating no matter what the weather may bring!