Green Vista Barley Extract Super Liquid - 1 Gallon - Prevents Algae and Helps to Reduce Buildup in Ponds and Water Gardens - All Natural - Supports Ideal Balance - Safe for Koi, Other Fish and Plants STOPS ALGAE GROWTH: Green Vista Water Gardens Barley Extract Super Liquid is all natural and effective in preventing algae from growing in ponds, water gardens and other waterscapes. Also aiding in the decrease of excess algae in problem areas, this scientifically formulated liquid treatment supports clean aquatic surfaces. UNLEASHES THE POWER OF ORGANIC BARLEY STRAW: The natural algae prevention quality of barley straw is the key to why Barley Extract Super Liquid works. The product goes through an industry-unique stabilization process to ensure it is fresh, potent and ready to keep your pond clear of algae. SUPPORTS NATURAL POND WATER BALANCE: Designed to help maintain great balance in pond water, this barley extract works best when it is used every two weeks throughout the growing season. PROMOTES PRISTINE WATER QUALITY: As it works to keep pond water clear of algae, Barley Extract Super Liquid also helps keep the water at its best quality. SAFE FOR POND LIFE: Koi, other kinds of fish and plants are safe with Green Vista's Barley Extract Super Liquid. It helps their health by working to keep their environment free of too much algae.