Green Vista Barley Straw Bales for Farm Pond Water Treatment - 12 to 15 Pounds - Treats 1/2 Acre Farm or Retention Pond for 6 Months! - Supports Water Balance - Safe for Koi, Fish and Plants

Green Vista JUMBO Natural Barley Pond Straw employs the all-natural qualities of barley straw to deter algae in water and on surfaces. It works in a variety of waterscapes, including small farm ponds, golf course water features, detention ponds, and retention ponds. Barley straw is safe for aquatic plants, Koi, and other fish that live in backyard ponds, and it's a popular choice for controlling algae in ponds. It is also safe to use with both pets and livestock which means barley straw bales are not only great to use in water gardens but also in large mud-bottom farm or fishing ponds. JUMBO 16-20 oz bales are a great value, especially when used in large backyard pond or farm ponds! One 1 - 1.25 lb bale treats up to 1,000 gallons of water for 10 to 12 months. 8 bales can treat up to a ¼ acre pond for 6 months. 12 bales can treat up to a ½ acre pond for 6 months.