--- product_id: 17923818 title: "API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution 1-Gallon Bottle" brand: "api" price: "€ 146.22" currency: EUR in_stock: true reviews_count: 13 category: "Api" url: https://www.desertcart.hr/products/17923818-api-stress-zyme-freshwater-and-saltwater-aquarium-cleaning-solution-1 store_origin: HR region: Croatia --- # Fresh & saltwater safe 300M+ live bacteria/teaspoon Natural sludge consumption API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution 1-Gallon Bottle **Brand:** api **Price:** € 146.22 **Availability:** βœ… In Stock ## Summary > πŸ§ͺ Transform your tank into a crystal-clear aquatic haven effortlessly! ## Quick Answers - **What is this?** API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution 1-Gallon Bottle by api - **How much does it cost?** € 146.22 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/17923818-api-stress-zyme-freshwater-and-saltwater-aquarium-cleaning-solution-1) ## 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€’ **Sludge-Busting Action:** Effortlessly consumes waste to keep gravel and decorations pristine - β€’ **Maintenance Made Minimal:** Spend less time scrubbing, more time admiring your aquatic masterpiece - β€’ **Powerful 300M+ Live Bacteria:** Supercharge your tank’s natural cleanup crew weekly - β€’ **Trusted 50+ Years Innovation:** Backed by decades of research for a healthy, balanced aquarium - β€’ **Dual Fresh & Saltwater Formula:** One solution for every aquatic ecosystem you manage ## Overview API Stress Zyme is a 1-gallon aquarium cleaning solution containing over 300 million live bacteria per teaspoon that naturally consumes sludge and organic waste in both freshwater and saltwater tanks. Designed for weekly use, it supports a strong biological filter, reduces maintenance, and promotes a healthy aquatic environment. Trusted for over 50 years, this product helps keep gravel, decorations, and water clean, making aquarium care simpler and more effective. ## 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. Review: Great product - Works great! Simple directions and great value for the price. Review: 10/10 - Works really well with my tank keeping the water clear and helping reduce sludge on the filters which helps maintenance and keeping it running longer ## Features - Contains one (1) API STRESS ZYME Freshwater and Saltwater Aquarium Cleaning Solution 3.78-Litre 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 | B0002AQOLM | | ASIN | B0002AQOLM | | Allergen Information | Apple Free | | Best Sellers Rank | #3,794 in Pet Supplies ( See Top 100 in Pet Supplies ) #19 in Aquarium Water Treatments | | Brand Name | API | | Customer Reviews | 4.8 4.8 out of 5 stars (12,058) | | Date First Available | October 2, 2001 | | Department | Unisex-Adult | | Is Discontinued By Manufacturer | No | | Item Form | Liquid | | Item Type Name | Aquarium Sludge Remover | | Item Weight | 2 Pounds | | Item model number | 56F | | Liquid Volume | 1 Gallons | | Manufacturer | Mars Fishcare | | Manufacturer | Mars Fishcare | | Manufacturer Part Number | 56F | | Model Number | 56F | | Product Dimensions | 10 x 10 x 10 inches; 2 Pounds | | Target Species | Fish | | UPC | 317163128565 | | Unit Count | 1 Count | ## Product Details - **Brand:** API - **Item Form:** Liquid - **Item Weight:** 2 Pounds - **Liquid Volume:** 1 Gallons - **Manufacturer:** Mars Fishcare ## Images ![API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution 1-Gallon Bottle - Image 1](https://m.media-amazon.com/images/I/81DYTPrK4bL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great product *by K***R on February 27, 2026* Works great! Simple directions and great value for the price. ### ⭐⭐⭐⭐⭐ 10/10 *by S***R on February 5, 2026* Works really well with my tank keeping the water clear and helping reduce sludge on the filters which helps maintenance and keeping it running longer ### ⭐⭐⭐⭐⭐ Amazing product. Really works. *by A***6 on July 13, 2025* I use this weekly, RELIGIOUSLY. I do not miss a dose. This is my tank today, having not touched the filter in 18 months. (Fluval FX6 filled with only biohome filter media and polishing sponges.) I’ve only changed out the live plants when needed (pothos houseplant clippings) and used the magnetic algae glass scraper when needed. It’s a 75 gallon tank. I8 MONTHS!!! I highly recommend this product. Zero odor, zero nastiness. ## Frequently Bought Together - API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution 1-Gallon Bottle - API STRESS COAT Aquarium Water Conditioner 1-Gallon Bottle, Model Number: 317163100851 - API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 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.hr/products/17923818-api-stress-zyme-freshwater-and-saltwater-aquarium-cleaning-solution-1](https://www.desertcart.hr/products/17923818-api-stress-zyme-freshwater-and-saltwater-aquarium-cleaning-solution-1) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-24*