Barley straw extract is a liquid concentrate specially formulated to naturally balance pond water and improve clarity, Especially helpful where bottom drains exist, One bottle is equal to multiple barley straw bales with no messy residual, Can be used all year around, 100% natural and safe for people pets fish waterfowl and wildlife, All the benefits of barley straw without the mess, Barley extract utilizes all the good properties of barley straw in liquid form, Barley Extract goes to work on contact and you don"t have to wait for the barley bales to decompose in your pond, 8 oz treats up to 800 gallons for 3 months, SKU: AES010