--- product_id: 1627314 title: "API Freshwater Master Test Kit 800-Test Freshwater Aquarium Water Kit, White, Single, Multi-Colored" price: "420 K" currency: PGK in_stock: true reviews_count: 13 url: https://papua.desertcart.com/products/1627314-api-freshwater-master-test-kit-800-test-freshwater-aquarium-water store_origin: PG region: Papua New Guinea --- # 7 solution bottles + color card 800 tests capacity Quick, weekly water monitoring API Freshwater Master Test Kit 800-Test Freshwater Aquarium Water Kit, White, Single, Multi-Colored **Price:** 420 K **Availability:** ✅ In Stock ## Summary > 🐠 Keep your freshwater world flawless — test smarter, not harder! ## Quick Answers - **What is this?** API Freshwater Master Test Kit 800-Test Freshwater Aquarium Water Kit, White, Single, Multi-Colored - **How much does it cost?** 420 K with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [papua.desertcart.com](https://papua.desertcart.com/products/1627314-api-freshwater-master-test-kit-800-test-freshwater-aquarium-water) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted Legacy Brand:** Nearly 60 years of proven aquarium expertise ensuring reliable results - • **User-Friendly Color Card:** Instant, easy-to-read results for confident water quality decisions - • **Comprehensive 800-Test Kit:** Unmatched testing volume for long-term aquarium care - • **Precision 5-Parameter Monitoring:** Accurately tracks pH, high range pH, ammonia, nitrite, nitrate levels - • **Proactive Fish Health Protection:** Detect invisible water hazards before they threaten your aquatic friends ## Overview The API Freshwater Master Test Kit offers 800 precise tests to monitor five critical water parameters—pH, high range pH, ammonia, nitrite, and nitrate—ensuring optimal freshwater aquarium health. Equipped with seven solution bottles, four test tubes, and a calibrated color card, it empowers aquarium enthusiasts to detect invisible water issues early, preventing fish stress and loss. Trusted by over 31,000 reviewers with a 4.8-star rating, this kit is the professional’s choice for weekly water quality maintenance. ## Description Most water problems are invisible to the eye. Quickly measure and modify the six aquarium levels that are most important to the health of your freshwater fish with the API FRESHWATER MASTER TEST KIT. To stay healthy and thrive, fish need properly balanced levels of ammonia, pH, high range pH, nitrite and nitrate. These levels can change rapidly and create harmful conditions when fish waste, uneaten food or other organic matter accumulate, or when untreated water is added. If left uncorrected, all of these can be harmful or even fatal to fish, with consequences such as reduction of oxygen, increase in stress and higher risk of disease. The API FRESHWATER MASTER TEST KIT measures these six parameters with scientific accuracy and provides professional results. It comes with four test tubes, a holding tray and computer calibrated, laminated color card. Just fill the test tubes, add the test drops and compare results to the color card. Then follow the recommendations on the card if action is required. With API aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For almost 60 years API has developed premium solutions with proven and effective results for your family and ours. API offers a range of testing kits, water conditioners, and nutritionally superior food, because we’re dedicated to making a better underwater world. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. At API, we understand the rewards and relaxation of fishkeeping because we have a passion for fish too. Review: Excellent kit for keeping my aquariums under control - I love this API Freshwater kit. It is fast, accurate, and very easy to use and interpret. It allows me to monitor my aquarium water parameters and make the necessary adjustments to keep conditions stable and healthy for my fish. The instructions are clear and the results are reliable. I definitely recommend it to any aquarium hobbyist! Product came fast, with all items as described. Review: An absolute lifesaver and a must-have for any tank owner! - The API Freshwater Master Test Kit is an absolute game-changer and a total necessity, especially during life-or-death tank emergencies. When my fish and shrimp were facing toxic spikes, this kit allowed me to get precise, accurate readings right away so I knew exactly how to treat the water. It takes away all the guesswork when your livestock's lives are on the line. What makes it even better is that it is relatively cheap for the massive amount of tests you get out of a single box. It lasts forever and is way more reliable than cheap test strips. The only minor drawback is that if you keep shrimp, you will need to buy a separate GH/KH test kit to monitor your water hardness for molting. But for checking ammonia, nitrite, nitrate, and pH, this kit is incredibly precise and worth every single penny. 10/10 highly recommend! ## Features - Contains one (1) API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, including 7 bottles of testing solutions, 1 color card and 4 tubes with cap - Helps monitor water quality and prevent invisible water problems that can be harmful to fish and cause fish loss - Accurately monitors 5 most vital water parameters levels in freshwater aquariums: pH, high range pH, ammonia, nitrite, nitrate - Designed for use in freshwater aquariums only - Use for weekly monitoring and when water or fish problems appear ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.8 out of 5 stars 31,512 Reviews | ## Images ![API Freshwater Master Test Kit 800-Test Freshwater Aquarium Water Kit, White, Single, Multi-Colored - Image 1](https://m.media-amazon.com/images/I/61Kd-mEEjXL.jpg) ![API Freshwater Master Test Kit 800-Test Freshwater Aquarium Water Kit, White, Single, Multi-Colored - Image 2](https://m.media-amazon.com/images/I/71+NJAMw1uL.jpg) ![API Freshwater Master Test Kit 800-Test Freshwater Aquarium Water Kit, White, Single, Multi-Colored - Image 3](https://m.media-amazon.com/images/I/41wXDcnVWVL.jpg) ![API Freshwater Master Test Kit 800-Test Freshwater Aquarium Water Kit, White, Single, Multi-Colored - Image 4](https://m.media-amazon.com/images/I/71WlieRyn8L.jpg) ![API Freshwater Master Test Kit 800-Test Freshwater Aquarium Water Kit, White, Single, Multi-Colored - Image 5](https://m.media-amazon.com/images/I/71WMhcD89sL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: How many tests can be run with this kit?** A: About 120. Problem is that if you use the full set of products daily you will quickly run out of the ammonia test and the Nitrates tests (each with 2 bottles) because they take 8-10 drops each, compared to the Ph test which only takes 3 drops. I mainly test ammonia and nitrites so I've had to buy separate ammonia kits twice now because I ran out of fluid, while my high range ph bottle is nearly full. Also - Prime, AmGuard and other products convert Ammonia into harmless Ammonium however, it will still read as ammonia on your API kit - so it's basically lying to you. There are kits that will show you active ammonia and harmless ammonium and my API kit reads 8.0 ammonia but the other kit reads it as all harmless ammonium and zero active ammonia. You have do dose your tank with Prime every 48 hours or less to keep the ammonium from converting back to killer ammonia. This will keep happening until your tank finally converts the ammonium to nitrites. My 2 of my 4 well-cycled tanks somehow lost their cycling so that's not happening for those tanks yet. **Q: I'm a newbie. I have a betta in 10G tank and I'm told that I need to test the water always.Not sure if I should get this or get cheaper ones instead.** A: Frankly, with a 10G tank you should just be doing weekly water changes of at least 25-30%. You can't really "let things go" with a tank that size and it's unlikely that you would have ammonia spikes with such frequent water changes. I have a little 5.5 gallon with a couple of albino cory cats and I use a test strip every once in a blue moon, but the water is always fine because I do weekly changes. Am looking at this kit for my 125 gallon tank, but would bother for a tiny tank. **Q: Would this kit be a good one for my planted aquarium?** A: Yes, this is a good general water testing kit, unless you have plants that are very sensitive to water hardness. This kit does NOT include a water-hardness tester. **Q: Can any of these tests be used for both saltwater and freshwater? I noticed a lot of the individually packaged tests say they can be used for both.** A: Api ammonia, nitrite and nitrate test kits can be used for both salt and fresh water aquariums, the liquid solutions are the same for salt and fresh. BUT the color cards that you use to compare your test to are slightly different. I have both fresh water and marine. The first time I bought these kits, I bought for saltwater and freshwater and never threw away the color cards. Now it doesn't matter if I get freshwater or saltwater test kits because I have both freshwater and saltwater cards. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent kit for keeping my aquariums under control *by J***. on October 13, 2026* I love this API Freshwater kit. It is fast, accurate, and very easy to use and interpret. It allows me to monitor my aquarium water parameters and make the necessary adjustments to keep conditions stable and healthy for my fish. The instructions are clear and the results are reliable. I definitely recommend it to any aquarium hobbyist! Product came fast, with all items as described. ### ⭐⭐⭐⭐⭐ An absolute lifesaver and a must-have for any tank owner! *by E***. on October 21, 2026* The API Freshwater Master Test Kit is an absolute game-changer and a total necessity, especially during life-or-death tank emergencies. When my fish and shrimp were facing toxic spikes, this kit allowed me to get precise, accurate readings right away so I knew exactly how to treat the water. It takes away all the guesswork when your livestock's lives are on the line. What makes it even better is that it is relatively cheap for the massive amount of tests you get out of a single box. It lasts forever and is way more reliable than cheap test strips. The only minor drawback is that if you keep shrimp, you will need to buy a separate GH/KH test kit to monitor your water hardness for molting. But for checking ammonia, nitrite, nitrate, and pH, this kit is incredibly precise and worth every single penny. 10/10 highly recommend! ### ⭐⭐⭐⭐⭐ Good *by H***E on August 8, 2026* This kit will last you a while, the material is good and it is very simple and easy to use. It doesn’t smell bad at all. The tubing is plastic, and I recommend handling with gentle care because you can rip off the lids if you mis treat it, but other than that the whole kit is good. The color comes out pretty precise, and the instruction manual tells you everything you need to do especially for people’s first time using it. Personally in the back of the book there are blank pages, and I like writing the date and the results every time I water test. Just a little tip! ## Frequently Bought Together - API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-colored - PAIZOO Fish Tank Digital Thermometer Accurate LED Display to ±0.9°F Tank Thermometer Aquarium Temperature Measurement Suitable for Fish, Axolotl, Turtle or Aquatic - Tetra Water Cleaner Gravel Siphon for Aquariums, Easily Clean Freshwater Aquariums --- ## 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://papua.desertcart.com/products/1627314-api-freshwater-master-test-kit-800-test-freshwater-aquarium-water](https://papua.desertcart.com/products/1627314-api-freshwater-master-test-kit-800-test-freshwater-aquarium-water) --- *Product available on Desertcart Papua New Guinea* *Store origin: PG* *Last updated: 2026-10-25*