--- product_id: 255264217 title: "Api Saltwater Aquarium Master Test Kit, 550 Count, Multicolor, 11 Count (Pack Of 1)" brand: "api" price: "760 kr" currency: DKK in_stock: true reviews_count: 7 category: "Api" url: https://www.desertcart.dk/products/255264217-api-saltwater-aquarium-master-test-kit-550-count-multicolor-11 store_origin: DK region: Denmark --- # 6 multicolor solutions measures pH, ammonia, nitrate 550 precise tests Api Saltwater Aquarium Master Test Kit, 550 Count, Multicolor, 11 Count (Pack Of 1) **Brand:** api **Price:** 760 kr **Availability:** ✅ In Stock ## Summary > 🌊 Master your marine oasis with precision and confidence! ## Quick Answers - **What is this?** Api Saltwater Aquarium Master Test Kit, 550 Count, Multicolor, 11 Count (Pack Of 1) by api - **How much does it cost?** 760 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/255264217-api-saltwater-aquarium-master-test-kit-550-count-multicolor-11) ## 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 - • **Lab-Grade Accuracy at Home:** Ensure your saltwater aquarium thrives with pinpoint water quality readings. - • **Comprehensive 550-Test Supply:** Stay ahead with enough tests for over a year of weekly monitoring. - • **Proactive Fish Health Management:** Detect invisible water issues early to prevent costly fish loss. - • **User-Friendly Kit with All Essentials:** Includes 4 glass test tubes with caps and 6 solution bottles for seamless testing. - • **Multicolor Solutions for Clear Results:** Easily interpret water chemistry with vibrant, easy-to-read color cards. ## Overview The Api Saltwater Aquarium Master Test Kit offers 550 high-accuracy tests to monitor critical water parameters—high range pH, ammonia, and nitrate—using six color-coded solutions and four glass test tubes. Designed for weekly use, it helps saltwater aquarium enthusiasts proactively maintain optimal water quality, preventing fish loss and ensuring a vibrant aquatic environment. ## Description From the manufacturer API Saltwater Aquarium Master Test Kit It measures the 4 most important saltwater parameters – pH, ammonia, nitrite, and nitrate – to enable easy testing of your tank’s natural cycle, and to aid in maintaining a thriving saltwater aquarium. Testing is fast, easy, and accurate, yielding precise results, and comes with 4 glass test tubes with snap-tight caps and a convenient holding tub for easy storage. This kit also includes a complete, step-by-step instructional booklet with a color chart that provides information on how to correct unsafe water conditions. it can conduct 550+ tests, so you can get the most out of your kit for years of fast, accurate water testing. ## Features - Contains One Api Saltwater Master Test Kit 550 Test Saltwater Aquarium Water Test Kit, Including Six Bottles Of Testing Solution, One Colour Card And Four Glass Test Tubes With Cap - Measures Levels Of High Range Ph, Ammonia And Nitrate - Helps Monitor And Adjust Ph And Prevent Invisible Water Problems That Can Be Harmful To Fish - Provides High Accuracy Results That Ultimately Prevent Fish Loss - Use For Weekly Monitoring And When Water Or Fish Problems Appear ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001EUE808 | | Allergen Information | BPA-Free | | Batteries Included | No | | Best Sellers Rank | #23,823 in Pet Supplies ( See Top 100 in Pet Supplies ) #110 in Aquarium Water Quality Testing & Treatment | | Color | multicolor | | Customer Reviews | 4.6 4.6 out of 5 stars (4,485) | | Date First Available | 7 August 2012 | | Item Weight | 454 g | | Item model number | 401M | | Number of Items | 1 | | Pet Life Stage | All Life Stages | | Pet Type | Fish | | Product Dimensions | 17.78 x 14.61 x 12.07 cm; 453.59 g | | Quantity | 1 | | Size | 11 Count (Pack of 1) | | Specific Uses | Active | | Volume | 2 | | batteries required | No | ## Images ![Api Saltwater Aquarium Master Test Kit, 550 Count, Multicolor, 11 Count (Pack Of 1) - Image 1](https://m.media-amazon.com/images/I/71A-PyQBvVL.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 ### ⭐⭐⭐⭐⭐ Review *by K***R on 23 July 2024* ### ⭐⭐⭐⭐⭐ Review *by M***O on 29 December 2022* ### ⭐⭐⭐⭐⭐ Review *by D***T on 5 February 2026* ## Frequently Bought Together - API SALTWATER MASTER TEST KIT 550-Test Saltwater Aquarium Water Test Kit - Instant Ocean Sea Salt 50 Gallons, For Marine Aquariums, Fast Dissolving --- ## 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.dk/products/255264217-api-saltwater-aquarium-master-test-kit-550-count-multicolor-11](https://www.desertcart.dk/products/255264217-api-saltwater-aquarium-master-test-kit-550-count-multicolor-11) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-04-26*