--- product_id: 55119546 title: "Stress Zyme Cleaning Solution for Freshwater and Saltwater Aquariums, 118 ml Bottle" brand: "api" price: "¥2508" currency: JPY in_stock: true reviews_count: 13 category: "Api" url: https://www.desertcart.jp/products/55119546-stress-zyme-cleaning-solution-for-freshwater-and-saltwater-aquariums-118 store_origin: JP region: Japan --- # Safe for freshwater & saltwater 300M+ live beneficial bacteria Natural sludge consumption Stress Zyme Cleaning Solution for Freshwater and Saltwater Aquariums, 118 ml Bottle **Brand:** api **Price:** ¥2508 **Availability:** ✅ In Stock ## Summary > 🧪 Transform your tank into a crystal-clear aquatic paradise—effortlessly! ## Quick Answers - **What is this?** Stress Zyme Cleaning Solution for Freshwater and Saltwater Aquariums, 118 ml Bottle by api - **How much does it cost?** ¥2508 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/55119546-stress-zyme-cleaning-solution-for-freshwater-and-saltwater-aquariums-118) ## 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 - • **Sludge-Busting Action:** Effortlessly consumes organic waste to keep gravel, rocks, and decorations pristine. - • **Dual-Environment Formula:** Perfectly balanced for both freshwater and saltwater tanks—one solution, endless clarity. - • **Trusted Legacy of 50+ Years:** Backed by API’s research-driven innovation, join thousands of pros who rely on Stress Zyme. - • **Powerful 300M+ Live Bacteria:** Supercharge your aquarium’s natural cleaning cycle with billions of beneficial microbes. - • **Weekly Maintenance Made Easy:** Just 5 ml per 10 gallons weekly keeps your tank healthy and reduces time spent scrubbing. ## Overview API Stress Zyme is a 118 ml liquid solution containing over 300 million live bacteria per teaspoon that naturally consumes sludge and organic waste in both freshwater and saltwater aquariums. Designed for weekly use, it maintains a healthy biological filter, reduces harmful toxins, and keeps gravel and decorations clean, making aquarium maintenance simpler and more effective. Trusted for over 50 years, API’s Stress Zyme supports a thriving aquatic environment for all fish types. ## Description Product Description Reduce aquarium maintenance by creating a naturally balanced aquarium with API STRESS ZYME Freshwater and Saltwater Aquarium Cleaning Solution. Fish waste, sludge, uneaten food and other organic compounds can cause harmful water conditions including ammonia and nitrite poisoning and breathing difficulty. They can also be difficult and time-consuming to remove especially from rock, coral and gravel. API STRESS ZYME Freshwater and Saltwater Aquarium Cleaning Solution contains over 300 million live bacteria per teaspoonful to consume sludge and organic debris, keeping gravel and glass clean naturally and boosting the natural aquarium cycle, reducing aquarium maintenance over time. Use it weekly in freshwater and saltwater aquariums to maintain a strong biological filter and a healthy, clean aquarium. With API Aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For over 50 years, API has been creating innovative, research-driven solutions that make it easier to care for your fish and aquarium. API Aquarium Treatment Supplies are designed to work in conjunction with each other to provide best results to control algae, promote healthy bacterial growth and help control and cure fish diseases and conditions such as ich and fin rot. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. With API, you can spend more time admiring your fish, and less time scrubbing your tank. Make sure to use all products as directed in order to ensure the best results. Directions Add 5 ml of Api Stress Zyme per 10 gallons of water, use weekly to maintain a clean, healthy aquarium Box Contains 1 x API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution 118 ml Review: Great product - Great product Review: Works a treat - Seems to work. Fish happy and clear water ## Features - Contains one (1) API STRESS ZYME Freshwater and Saltwater Aquarium Water Cleaning Solution 118 ml Bottle - Keeps freshwater and saltwater aquariums clean and reduces maintenance - Consumes sludge to help keep gravel and decorations clean - Adds beneficial bacteria for a healthy aquarium - Use weekly to maintain a clean, healthy aquarium ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002AQLJW | | Allergen Information | Apple Free | | Best Sellers Rank | 3,915 in Pet Supplies ( See Top 100 in Pet Supplies ) 34 in Aquarium Water Treatments | | Brand | API | | Brand Name | API | | Country Of Origin | United Kingdom | | Customer Reviews | 4.7 out of 5 stars 11,813 Reviews | | Global Trade Identification Number | 00317163040560 | | Item Form | Liquid | | Item Type Name | Aquarium Sludge Remover | | Item Weight | 136.08 Grams | | Item form | Liquid | | Item weight | 136.08 Grams | | Liquid Volume | 4 Fluid Ounces | | Liquid volume | 4 Fluid Ounces | | Manufacturer | API | | Manufacturer Part Number | 56C | | Model Number | 56C | | Number of Items | 1 | | Number of Packs | 1 | | Pet Type | Fish | | Target Species | Fish | | UPC | 317163040560 | | Unit Count | 1 count | | Unit count | 1 count | ## Product Details - **Brand:** API - **Item form:** Liquid - **Item weight:** 136.08 Grams - **Liquid volume:** 4 Fluid Ounces - **Number of Packs:** 1 ## Images ![Stress Zyme Cleaning Solution for Freshwater and Saltwater Aquariums, 118 ml Bottle - Image 1](https://m.media-amazon.com/images/I/71tav3eZUbL.jpg) ## Available Options This product comes in different **Pattern, Style** options. ## Questions & Answers **Q: Had the fresh water tank about one month cant seem get the nitrite level down, any suggestion please.** A: Be patient. Mine took 6 months before maturing. Have you put fish in already? pooing, too much food etc can cause nitrate. Youncan get various nitrate absorbers which helps. I have now kept fish for 3 years and still occasionally get nitrate problems. Change water by 25% and keep this up until clear of nitrate, also cut down on food. whatever you put on your hands can also cause problems, w/in liquid ,moisteriser etc. Hope this is of help, but above all, patience. **Q: Does activated carbon affect this ?** A: Not that I’m aware off no **Q: How much should i use in 200 litre tank? i’m not very good when it comes to chemical measurements. and do you add when weekly water change? thank you** A: You need follow the directions on the back of the bottle as you would for medicine. The instructions are clear. You can use it weekly but it all depends on your tank. Ideally, test your water once a week and then decide. I use it once a month. **Q: Amazon prime stated that this would be delivered tomorrow- as they always do. But they’ve given me a delivery date in a few days- help!!! Why??** A: transport dealys, out of stock, damag/missing orders, they dont like you ... lots of reasons. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product *by I***H on 8 August 2026* Great product ### ⭐⭐⭐⭐⭐ Works a treat *by M***L on 10 August 2026* Seems to work. Fish happy and clear water ### ⭐⭐⭐⭐⭐ Tank treatment *by S***. on 31 May 2026* Good value for money ## Frequently Bought Together - API STRESS ZYME Bacterial cleaner, Freshwater and Saltwater Aquarium Water Cleaning Solution, 4 oz - API STRESS COAT Aquarium Water Conditioner 4-Ounce Bottle (85B) - API TAP WATER CONDITIONER Aquarium Water Conditioner 16-Ounce Bottle --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/55119546-stress-zyme-cleaning-solution-for-freshwater-and-saltwater-aquariums-118](https://www.desertcart.jp/products/55119546-stress-zyme-cleaning-solution-for-freshwater-and-saltwater-aquariums-118) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-24*