PondH2o String Algae Green Water Pond Treatment, 6000 Gallons PondH2o Greenwater Goblins and String Algae Blanketweed Combo Pack - Pond Sludge Remover for Koi Fish Ponds and Water Garden Backyard Ponds. Help reduce nitrate and phosphate levels, aid the break-down of bottom sludge and odors, as well as helping to make the water less murky. This formulation contains beneficial pond bacteria which are ideal for use in Koi fish ponds and water garden ponds. The pond algae remover in the Green Water treatment also contains barley straw which is another natural control method to prevent the water turning that murky shade of green. Convenient sachets make this one of the most versatile products around with no messy measuring or dosing needed. Using natural ingredients these water soluble sachets are completely harmless to fish and pond plants. Each sachet treats up to 1,000 gallons of pond water and should be used every 1-2 weeks during the spring, summer and autumn seasons. ? No Mess Application ? Can Not overdose ? Each Sachet Treats up to 1000 gallons - Will Treat up to 6000 gallons ? Natural Bacterial Treatment We sell many aquatic products online, check out our store! Terms and Conditions. We use all approved forms for accepting payments. Sales Tax will be added to all shipments based on regulations. We always try to combine purchases, please contact us directly for a personal service. You will be notified on the day that your goods have been dispatched via e-mail with tracking which is used on all purchases. Please note that if there are any problems, contact us first via e-mail giving full details of any problem along with your user ID. We use USPS and UPS as our chosen carriers shipments to Hawaii, Alaska Puerto Rico may incur surcharges, contact will be made to advise before shipment at which point the order can be cancelled if desired. Orders placed on Saturday/Sunday Public Holidays will be processed next working day. We pride ourselves on excellent feedback, if any part of the buying experience is not to your satisfaction, please contact us to rectify before leaving feedback. By committing to buy you are agreeing to the Terms Conditions stated above.