--- product_id: 254051153 title: "API Freshwater Master Test Kit for Aquariums" brand: "api" price: "€ 94.90" currency: EUR in_stock: true reviews_count: 13 category: "Api" url: https://www.desertcart.pt/products/254051153-api-freshwater-master-test-kit-for-aquariums store_origin: PT region: Portugal --- # Reusable with 800 accurate tests Includes 7 precise test solutions Measures 5 vital water parameters API Freshwater Master Test Kit for Aquariums **Brand:** api **Price:** € 94.90 **Availability:** ✅ In Stock ## Summary > 🐠 Keep your aquarium thriving — test like a pro, stress-free! ## Quick Answers - **What is this?** API Freshwater Master Test Kit for Aquariums by api - **How much does it cost?** € 94.90 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/254051153-api-freshwater-master-test-kit-for-aquariums) ## 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 - • **Safe & Sustainable:** BPA-free materials and reusable components for eco-conscious fish keepers. - • **Ultimate Value Pack:** Up to 800 tests with 7 test solutions and 4 durable glass test tubes included. - • **Trusted by Thousands:** 4.8-star rating from over 30,000 aquarium enthusiasts ensures reliability and peace of mind. - • **Effortless Aquarium Care:** Step-by-step instructions and color chart make water testing simple and foolproof. - • **Precision at Your Fingertips:** Scientifically accurate readings for pH, ammonia, nitrite, nitrate, and high range pH levels. ## Overview The API Freshwater Master Test Kit is a comprehensive, reusable testing solution designed for freshwater aquariums. It accurately measures five critical water parameters—pH, high range pH, ammonia, nitrite, and nitrate—using 7 test solutions and 4 glass test tubes. With up to 800 tests per kit, clear instructions, and a color chart, it empowers aquarium owners to maintain optimal water quality effortlessly, ensuring a healthy environment for all fish life stages. ## Description From the manufacturer It’s Smart to be Proactive! The best way to keep your aquarium clean is to maintain good water quality. This will keep your fish strong and vibrant, as well as preventing disease. How Do I Maintain a Healthy Environment? It is important to test your aquarium water weekly to verify good quality in addition to a bi-weekly partial water change of no more than 25% to help reduce toxic buildup, remove debris the filter missed, and replenish the oxygen available to fish. How Do I Take Good Care Of My Aquarium & Fish? Feed & observe fish daily Test water quality weekly Change 25% water bi-weekly Restore your ecosystem monthly Feed Your Fish Daily Feed your fish twice daily with API Fish Food which contains nutritionally enhanced proteins, allowing for easy uptake of nutrients and maximum absorption, resulting in less excrement for clear, clean water. Only give the amount of food fish can eat in 2 to 3 minutes depending on the species. Some fish such as bottom feeders and algae eaters will need up to 30 minutes to 2 hours. Take time to observe fish and the water temperature to ensure they are active & healthy. Test Water Quality Weekly An aquarium is a closed environment and in order for fish to thrive, water must be similar to that which could be found in their natural environment. Poor water quality can cause fish stress, illness and even loss. The 5 common water quality parameters are Ammonia, Nitrite, Nitrate, and pH - all of which may vary over time and all are invisible to the eye which is why it is important to test weekly with API Master Test Kits or API 5-In-1 Test Strips. It is also a good time to add API Stress Zyme to keep your aquarium & gravel clean. Change 25% Water Every 2 Weeks In a closed aquarium environment there are no natural rivers or streams to carry away debris and other waste materials. It is important to renew 25% of the aquarium water every two weeks. When you change the water, it is important to know that tap water contains chemicals that make it safe for us to drink but harmful for fish, therefore add a water conditioner such as API Stress Coat. Restore Your Ecosystem Monthly It is important to change your filter media & clean gravel monthly, however in doing so it can disrupt the fragile ecosystem of your aquarium. Use API Quick Start to strengthen it with ‘beneficial’ nitrifying bacteria that will naturally consume toxic compounds and help prevent fish stress. Also recommended when starting a new aquarium or changing the water. Making A Better Underwater World At API, we understand the rewards and relaxation of fishkeeping because we have a passion for fish too. For over 50 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. Review: Good quality - Good product Review: Working good - Very good for water testing and very accurate ## Features - The API FRESHWATER MASTER TEST KIT measures the 4 most important levels in freshwater aquariums quickly and accurately, including pH, high range pH, ammonia, nitrite, and nitrate. With scientific accuracy for professional results, the reusable FRESHWATER MASTER TEST KIT comes with 4 glass test tubes with snap tight caps and a convenient holding tub for easy storage. Also includes a step by step instruction booklet with a color chart that provides information on how to correct unsafe water conditions. - We recommend that you take a few minutes each week to monitor your aquarium conditions and create a better underwater world for your fish. Testing your aquarium water has never been so easy or accurate - Contains 800 tests and includes 7 test solutions, easy to ready instructions, 4 glass test tubes and color chart ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000255NCI | | Allergen Information | BPA-Free | | Batteries Included | No | | Best Sellers Rank | #10,409 in Pet Supplies ( See Top 100 in Pet Supplies ) #68 in Fish Medication & Health Supplies | | Color | multicolor | | Compatible Devices | Designed for use in freshwater aquariums only | | Customer Reviews | 4.8 4.8 out of 5 stars (30,203) | | Date First Available | 7 August 2012 | | Item Form | other | | Item Weight | 522 g | | Item model number | 34 | | Number of Items | 1 | | Pet Life Stage | All Life Stages | | Pet Type | Fish | | Product Dimensions | 23.2 x 8.9 x 11.8 cm; 521.63 g | | Quantity | 1 | | Size | Single | | Special Features | Accurately monitors five most vital water parameters levels in freshwater aquariums: pH, High Range PH, Ammonia, Nitrite and Nitrate | | Specific Uses | Active | | Volume | 250 Milliliters | | batteries required | No | ## Images ![API Freshwater Master Test Kit for Aquariums - Image 1](https://m.media-amazon.com/images/I/61Kd-mEEjXL.jpg) ![API Freshwater Master Test Kit for Aquariums - Image 2](https://m.media-amazon.com/images/I/71+NJAMw1uL.jpg) ![API Freshwater Master Test Kit for Aquariums - Image 3](https://m.media-amazon.com/images/I/41wXDcnVWVL.jpg) ![API Freshwater Master Test Kit for Aquariums - Image 4](https://m.media-amazon.com/images/I/71WlieRyn8L.jpg) ![API Freshwater Master Test Kit for Aquariums - Image 5](https://m.media-amazon.com/images/I/71WMhcD89sL.jpg) ## 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 ### ⭐⭐⭐⭐⭐ Good quality *by C***Y on 6 September 2024* Good product ### ⭐⭐⭐⭐⭐ Working good *by B***E on 10 October 2024* Very good for water testing and very accurate ### ⭐⭐⭐⭐⭐ Must have for aquarists! *by D***N on 22 September 2024* You'll thank yourself after investing in this test kit, and know to when to water change. Say bye to dead fish! ## 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://www.desertcart.pt/products/254051153-api-freshwater-master-test-kit-for-aquariums](https://www.desertcart.pt/products/254051153-api-freshwater-master-test-kit-for-aquariums) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-07-10*