Liquid Barley Straw ExtractEasyPro Liquid Barley Straw Extract is an all natural liquid formula, derived from a fermentation of barley straw. This fermentation extract contains a blend of acids, enzymes, beneficial pond bacteria and fungi, which help to keep your pond water clean and clear. Non chemical and safe for fish, plants, wildlife and the environment Eliminates the time frame needed for bales or pellets to naturally biodegrade, so greatly speeds up overall results Apply