--- product_id: 1423401 title: "POND-ZYME SLUDGE DESTROYER (1 Pound) Pond Cleaner with Natural Pond Bacteria - Up to 16,000 Gallons - Reduces Fish Waste Buildup - Consumes Muck & Sludge - Spring Start Up & Regular Care" brand: "api" price: "Β₯11828" currency: JPY in_stock: true category: "Api" url: https://www.desertcart.jp/products/1423401-pond-zyme-sludge-destroyer-1-pound-pond-cleaner-with-natural store_origin: JP region: Japan --- # Breaks down algae & organic muck Treats up to 16,000 gallons Natural bacteria-powered POND-ZYME SLUDGE DESTROYER (1 Pound) Pond Cleaner with Natural Pond Bacteria - Up to 16,000 Gallons - Reduces Fish Waste Buildup - Consumes Muck & Sludge - Spring Start Up & Regular Care **Brand:** api **Price:** Β₯11828 **Availability:** βœ… In Stock ## Summary > 🌊 Clear your pond, clear your mind β€” the natural way to pristine waters! ## Quick Answers - **What is this?** POND-ZYME SLUDGE DESTROYER (1 Pound) Pond Cleaner with Natural Pond Bacteria - Up to 16,000 Gallons - Reduces Fish Waste Buildup - Consumes Muck & Sludge - Spring Start Up & Regular Care by api - **How much does it cost?** Β₯11828 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/1423401-pond-zyme-sludge-destroyer-1-pound-pond-cleaner-with-natural) ## Best For - api enthusiasts ## Why This Product - Trusted api brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Fast-Acting Formula:** Breaks down dead algae, leaves, and grass clippings quickly, keeping your pond crystal clear and pump-efficient. - β€’ **Safe for All Pond Life:** Formulated to protect koi, goldfish, catfish, and local wildlife, ensuring a thriving, balanced ecosystem. - β€’ **Massive Coverage Capacity:** One pound treats up to 16,000 gallons, making it perfect for large ornamental ponds and reducing maintenance frequency. - β€’ **Trusted Aquatic Expertise:** Backed by over 60 years of API’s pioneering research, delivering reliable, professional-grade pond care. - β€’ **Eco-Friendly Sludge Destroyer:** Harnesses natural bacteria and barley to safely consume fish waste and pond sludge without harming your aquatic friends. ## Overview API POND-ZYME SLUDGE DESTROYER is a powerful, natural pond cleaner that uses active bacteria and barley to break down fish waste, algae, and organic sludge. Designed for ponds up to 16,000 gallons, it reduces maintenance by efficiently consuming muck and sludge while being safe for fish and wildlife. Trusted for over 60 years, this formula ensures a healthy, clear pond environment with easy bi-weekly dosing. ## Description API POND-ZYME SLUDGE DESTROYER Pond Water Cleaner With Barley Keep your ornamental pond clear, healthy, and easy to maintain with API POND-ZYME SLUDGE DESTROYER. Powered by natural bacteria and barley, this double-action formula breaks down fish waste, algae, leaves, and organic muck that cloud water and clog pumps or filters. Safe for koi, goldfish, catfish, and other pond life, it creates a clean, thriving ecosystem so you can spend less time cleaning and more time enjoying your fish. How to Use: Spring Start-up & End of Season: Dose twice a week for 2 weeks. Regular Maintenance: Dose once every 2 weeks. Backed by over 60 years of aquatic research, API makes pond care simple. Your Underwater World, Made Easy. ## Features - API POND-ZYME SLUDGE DESTROYER – Contains natural active ingredients to break down fish waste and consume pond sludge with natural bacteria for ponds. - Fast and Effective – This pond muck and sludge remover breaks down dead algae and digests leaves and grass clippings. - Safety First – Our pond sludge remover helps to reduce overall pond maintenance and keep ponds clean while being safe for pets and surrounding wildlife. - How to Use – Use twice a week for two weeks in ornamental ponds for start-up or end of season, then once every two weeks for regular maintenance. Includes 1 pound for treating up to 16,000 gallons. - Why API Products? – For over 60 years, we've been a leader in the aquatics industry, developing and perfecting products and solutions for indoor aquariums and outdoor ponds. Today, our family of products includes treatments, testing, and nutrition. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000OVCI2S | | ASIN | B000OVCI2S | | Allergen Information | Apple Free | | Best Sellers Rank | #3,563 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #17 in Water Garden & Pond Treatment | | Brand Name | API | | Customer Reviews | 4.3 4.3 out of 5 stars (4,961) | | Date First Available | October 2, 2003 | | Department | Pond | | Global Trade Identification Number | 00317163021460 | | Item Form | Stick | | Item Type Name | Pond Sludge Remover | | Item Weight | 16 ounces | | Item model number | 146B | | Manufacturer | Mars Fishcare | | Manufacturer | Mars Fishcare | | Manufacturer Part Number | 146B | | Manufacturer recommended age | 1 month and up | | Model Number | 146B | | Pet Type | Fish | | Product Dimensions | 4 x 3.5 x 6.5 inches; 1 pounds | | Target Species | Fish | | UPC | 885730609644 885479943481 317163421468 885509235029 317163021460 885232340557 885390880940 | | Unit Count | 1 Count | ## Product Details - **Brand:** API - **Item Form:** Stick - **Item Weight:** 16 ounces - **Number of Packs:** 1 - **Unit Count:** 1 Count ## Images ![POND-ZYME SLUDGE DESTROYER (1 Pound) Pond Cleaner with Natural Pond Bacteria - Up to 16,000 Gallons - Reduces Fish Waste Buildup - Consumes Muck & Sludge - Spring Start Up & Regular Care - Image 1](https://m.media-amazon.com/images/I/81P3wccS3hL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: how many gallons does this treat** A: The container comes with a soup about tablespoon sized and there is messing table on the container of how many scoops per 100 gallons. I have been using it once a week with 2 scoops and there's about 6 months worth in the container, by my guess. I hope this helps! **Q: What are the ingredients? Does this contain peroxide?** A: No peroxide **Q: Hi my water is clear. But will this work for cleaning up a sludge spot in my pond that is about 4X4? Or should I go with a pellet sludge remover?** A: This product is excellent I use it with either API pond flush or Microbelift PL. A super self discovered secret is mix 2 parts liquid bacteria above with one part pond zyme to make a cookie dough consistency. Roll it into a ball and drop or toss into pond directly into dirtiest sludge spots in the bottom of your pond. We use this technique in show ponds at a pond outfitter. Tried and true for over the last year. Unplug this UV’s for at least a day. You can substitute half barley extract if you’re having an issue with string algae. I then supplement with whatever remaining liquid you need to add for the size of your pond. **Q: I have a 600g pond. I dosed it last night. Water is still black. How long does this take to clear water?** A: I was not a fan of this products performance. I've not had Black problems before, but lots of Green especially in Spring. I think water changes and UV Sterilization unit was my clear water help! ## Frequently Bought Together - API POND-ZYME SLUDGE DESTROYER Pond Cleaner With Natural Pond Bacteria And Barley, 1-Pound Container - API POND ALGAEFIX Algae Control 32-Ounce Bottle, FISHAQUARI (169G) - API POND ACCU-CLEAR Pond Water Clarifier 32-Ounce Bottle --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/1423401-pond-zyme-sludge-destroyer-1-pound-pond-cleaner-with-natural](https://www.desertcart.jp/products/1423401-pond-zyme-sludge-destroyer-1-pound-pond-cleaner-with-natural) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-02*