EasyPro EBS1 Barley Straw Bale for Ponds and Waterfalls, 1-Pound, Each one pound bale treats approximately 1000 gallons of pond water By EasyPro Pond ProductsCategory: Liquid Barley StrawEach Barley Straw bale is one pound and treats approximately 100 square feet of pond surface, last approximately three months. EasyPro, an industry leader of quality and innovation, offers the widest selection of water feature, fountains, and lake management products available. is a name you can trust. If you have any further questions, please feel free to contact us. We look forward to serving you in the future.