Check the listing for details. AquaMeds Pond Sludge Remover 4 lbs. Condition: New. Listed at 119.95 USD. AquaMeds Sludge Remover 4 lbs Aqua Meds® Sludge & Muck Remover Especially formulated for rock and gravel bottom ponds! Professional Strength, Concentrated Beneficial Bacteria Removes toxic fish waste, left over food and deadly gases that build up under the rocks and in the gravel of your koi pond. A big cause of pond water and fish health problems 100% NATURAL Pond Bacteria NO HARSH CHEMICALS Also works very well in ponds without gravel bottoms Removes algae causing phosphorus Reduces pond water odors and yellowing, improves water quality and clarity Safe for pets, filters, plants and wildlife Aqua Meds Sludge Remover Application Rate For the 1st application of the season, mix 2 oz. of sludge remover per 1,000 gallons in a bucket with several gallons of pond water. Disperse mixture into areas of the pond with adequate circulation. Reapply 1 oz. per 1,000 gallons every two weeks. Turn off U.V. sterilizer for 48 hours after application. Maintain sufficient aeration during treatment. Discontinue use when water temperature drops below 50°F Webb's eBay Store Store Home Store Policies Feedback Shipping Most orders are shipped from our warehouse in Maryland. We warehouse over 95% of the items that we offer, which is a key to our quick order turn-around. Some orders are drop shipped directly from our manufacturer's in various states within the continental US. All orders are shipped via either UPS or FedEx therefore we cannot deliver to PO boxes, please supply a physical address to which we can ship your order. Payment We accept PayPal and the following credit cards: Visa, MasterCard, American Express, and Discover. Please feel free to call with any questions.