Microbe Lift MLCBSE500 Barley Straw Concentrated Extract Pond Conditioner (16 Ounces) An environmentally responsible, cost efficient pond conditioner Concentrated barley straw extract especially helpful where bottom drains are present One capful is equal to multiple barley straw bales and won't leave any messy residual A clean and easy, natural and organic, year round approach to a healthy pond environment Goes to work on contact, immediately releasing decomposition byproducts without harming aquatic life, plants, humans, or pets An environmentally responsible, cost efficient pond conditioner Clean and easy Natural and organic approach to a health pond environment Goes to work on contact Not harmful to aquatic life, plants, humans and pets