Microbe-Lift Sludge Away Formulated specifically for the removal of organic bottom solids that are slow to degrade Helpful for pods that have rock or gravel bottom where vacuuming is impractical May be used at any temperature Year Round Safe for fish plants pets and the environment Made in the USA Speeds the biological removal of slow-to-degrade organic waste matter Reduces or eliminates the potentially harmful gaseous compounds Helps clarify your pond water May slightly discolor pond water for a short while Rocks along the edge may darken but will return to their natural color