Api pond ecofix sludge destroyer pond water clarifier reduces build-up of fish waste & consumes pond sludge, which is typically an accumulation of organic matter that degrades water quality & clogs pumps & filters. Api ecofix sludge destroyer contains all-natural, highly-concentrated bacteria to break down fish waste & dead algae, digest leaves & grass clippings, & reduce overall pond maintenance for the season. Use twice a week for two weeks as an initial dose at the start of the season, quick clean-up, & end of season, & once every two weeks for regular maintenance. with api pond products, it’s easy to keep a beautiful pond. For over 50 years, api has been creating innovative, research-driven solutions that make it easier to care for your pond. Api pond pond treatment supplies are designed to work in conjunction with each other to provide best results to control algae, promote healthy bacterial growth & help control & cure fish diseases & conditions such as ich & fin rot. They work to provide a safe, hospitable environment for fish such as koi, catfish, perch, goldfish & more. With api, you can spend more time admiring your fish, & less time scrubbing your pond. Make sure to use all products as directed in order to ensure the best results.