Fresh Coop combines Food Chemical Codex Grade Red Lake Diatomaceous Earth with Calcium Montmorillonite and Citric Acid to eliminate harmful ammonia levels, control odors and absorb moisture. Provide your backyard chickens with a healthier and drier environment. Fresh Coop can be used with backyard chickens, pullets, layers, quail, ducks, turkeys, pigeons, and pheasants. Natural and Effective way to control moisture, ammonia and other unpleasant odors