--- product_id: 17923818 title: "API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution 1-Gallon Bottle" brand: "api" price: "HK$1377" currency: HKD in_stock: true reviews_count: 13 category: "Api" url: https://www.desertcart.hk/products/17923818-api-stress-zyme-freshwater-and-saltwater-aquarium-cleaning-solution-1 store_origin: HK region: Hong Kong --- # Safe for freshwater & saltwater 300M+ live bacteria/teaspoon Consumes sludge & organic waste API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution 1-Gallon Bottle **Brand:** api **Price:** HK$1377 **Availability:** ✅ In Stock ## Summary > 🧬 Transform your tank maintenance from chore to charm! ## Quick Answers - **What is this?** API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution 1-Gallon Bottle by api - **How much does it cost?** HK$1377 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/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 - • **Dual Habitat Power:** Formulated for both freshwater and saltwater tanks—one solution, endless aquatic possibilities. - • **Maintenance Made Minimal:** Significantly reduces cleaning frequency by keeping gravel, decorations, and filters pristine. - • **Effortless Aquarium Clarity:** Harness 300 million live bacteria per teaspoon to naturally break down sludge and debris. - • **Boosts Biological Filtration:** Enhances your tank’s natural biofilter for a healthier, balanced aquatic ecosystem. - • **Trusted Legacy of Innovation:** Backed by 50+ years of API’s research-driven aquarium care expertise. ## 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. Safe for both freshwater and saltwater tanks, it reduces maintenance by keeping gravel, decorations, and filters clean while boosting biological filtration. Trusted for over 50 years, it helps maintain a healthy, crystal-clear aquatic environment with weekly use. ## 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: I can see clearly now! - This product is highly effective! If you're seeking a solution to clarify your tank water and diminish the amount of sludge, which in turn reduces any unpleasant fishy odors, this is an essential purchase. I've been utilizing this product for several months to aid in the general maintenance of my fish tanks. Its application is straightforward; simply follow the instructions provided, and you'll find it impossible to make a mistake. Review: Keeps filter clean and biofiter optimum - I add this once a week. The first three months of using it I went to clean my canister filter and was surprised to see virtually no gunk! Normally there was a lot of build up. This made a huge difference. My tank is crystal clear because of this and it's enhancement of the bio filter. This stuff eats all the sludge on your biofilter and makes it work better. This is NOT nitrifying bacteria like quick start. This product will not cycle your tank. This just keeps maintence low and healthier fish. I now wait 5 to 6 months to clean my two fluval 406s. I have a 40g African cichlids tank that is heavily over stocked and they are dirty fish! Thank you API! Update 10/18/2019 I just wanted to reiterate how happy I am with this additive. I also notice that my nitrates are consistently almost zero and I hardly get anything out of vacuuming the gravel. (Only fresh large poop) I used to pick up a cloud of dirt everywhere with my siphon. I do run carbon to help sparkle the water because I have driftwood that tries to turn it yellow but the clarity is crystal with this stuff. And always my Fluval 407 (now) hardly has any build up and the biohome ultimate is perfectly clean. I briefly tried seachem’s pristine but this seems to be the best. Fish are very happy. ## Features - Contains one (1) API STRESS ZYME Freshwater and Saltwater Aquarium Cleaning Solution 1-Gallon 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 | | Allergen Information | Apple Free | | Best Sellers Rank | #4,276 in Pet Supplies ( See Top 100 in Pet Supplies ) #20 in Aquarium Water Treatments | | Brand | API | | Brand Name | API | | Customer Reviews | 4.8 out of 5 stars 12,178 Reviews | | Item Form | Liquid | | Item Type Name | Aquarium Sludge Remover | | Item Weight | 2 pounds | | Liquid Volume | 1 gallons | | Manufacturer | Mars Fishcare | | Manufacturer Part Number | 56F | | Model Number | 56F | | Number of Items | 1 | | Number of Packs | 1 | | Pet Type | Fish | | Target Species | Fish | | UPC | 317163128565 | | Unit Count | 1 Count | ## Product Details - **Brand:** API - **Item Form:** Liquid - **Item Weight:** 2 pounds - **Liquid Volume:** 1 gallons - **Number of Packs:** 1 ## Images ![API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution 1-Gallon Bottle - Image 1](https://m.media-amazon.com/images/I/61jUqrMMmgL.jpg) ![API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution 1-Gallon Bottle - Image 2](https://m.media-amazon.com/images/I/61k5aUP3ANL.jpg) ![API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution 1-Gallon Bottle - Image 3](https://m.media-amazon.com/images/I/31XeTYSV4iL.jpg) ![API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution 1-Gallon Bottle - Image 4](https://m.media-amazon.com/images/I/31fJWHlQCIL.jpg) ![API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution 1-Gallon Bottle - Image 5](https://m.media-amazon.com/images/I/5168fFt1MuL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ I can see clearly now! *by D***Y on May 25, 2026* This product is highly effective! If you're seeking a solution to clarify your tank water and diminish the amount of sludge, which in turn reduces any unpleasant fishy odors, this is an essential purchase. I've been utilizing this product for several months to aid in the general maintenance of my fish tanks. Its application is straightforward; simply follow the instructions provided, and you'll find it impossible to make a mistake. ### ⭐⭐⭐⭐⭐ Keeps filter clean and biofiter optimum *by A***R on October 15, 2017* I add this once a week. The first three months of using it I went to clean my canister filter and was surprised to see virtually no gunk! Normally there was a lot of build up. This made a huge difference. My tank is crystal clear because of this and it's enhancement of the bio filter. This stuff eats all the sludge on your biofilter and makes it work better. This is NOT nitrifying bacteria like quick start. This product will not cycle your tank. This just keeps maintence low and healthier fish. I now wait 5 to 6 months to clean my two fluval 406s. I have a 40g African cichlids tank that is heavily over stocked and they are dirty fish! Thank you API! Update 10/18/2019 I just wanted to reiterate how happy I am with this additive. I also notice that my nitrates are consistently almost zero and I hardly get anything out of vacuuming the gravel. (Only fresh large poop) I used to pick up a cloud of dirt everywhere with my siphon. I do run carbon to help sparkle the water because I have driftwood that tries to turn it yellow but the clarity is crystal with this stuff. And always my Fluval 407 (now) hardly has any build up and the biohome ultimate is perfectly clean. I briefly tried seachem’s pristine but this seems to be the best. Fish are very happy. ### ⭐⭐⭐⭐⭐ If you have fish you need this *by H***I on July 28, 2026* Works great to keep a tank clean and fish healthy. Use it every water change and weekly. Wouldn’t do without it. Definitely cleaning the tank less now ## 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? - 🛒 **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.hk/products/17923818-api-stress-zyme-freshwater-and-saltwater-aquarium-cleaning-solution-1](https://www.desertcart.hk/products/17923818-api-stress-zyme-freshwater-and-saltwater-aquarium-cleaning-solution-1) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-09-13*