Make your pond blue and beautiful with the Outdoor Water Solutions Pond Pack. This pack of natural products fights the matter that clouds up your pond to leave it looking fresher and cleaner. The first cleansing wave this pack contains is concentrated aerobic bacteria in a barley straw medium that breaks down excess nutrients in the water column and starts consuming excess organic matter at the bottom of your pond. The water clarifier then ties up excess phosphorous and improves water clarity. Add the blue dry pond dye afterward to give your water a beautiful blue color. This pack is enough to treat a 1/4-acre pond for 6 months or a 1/2-acre pond for 3 months. These natural products are especially effective when combined with a bottom-diffused aeration system (not included). Includes 12 lbs. of 8-oz. packets containing concentrated aerobic bacteria in a barley straw medium, 10 lbs. of water clarifier, and two 6-oz. packets of blue dry pond dye in water soluble pouches. Weight: 23 lbs. Designed to treat a 1/4-acre pond for 6 months or a 1/2-acre pond for 3 months Bacteria breaks down excess nutrients in water column and consumes organic matter at the bottom Water clarifier ties up excess phosphorous to help improve water clarity Blue dye packets help filter sunlight off of the bottom Especially effective when combined with bottom-diffused aeration system (not included)Includes: 12 lbs. of 8-oz. packets containing concentrated aerobic bacteria in a barley straw medium 10 lbs. of water clarifier Two 6-oz. packets of blue dry pond dye in water soluble pouches