--- product_id: 5088572 title: "API PH TEST KIT 250-Test Freshwater Aquarium Water pH Test Kit, 4 Piece Set" brand: "api" price: "£10.87" currency: GBP in_stock: true reviews_count: 13 url: https://www.desertcart.co.uk/products/5088572-api-ph-test-kit-250-test-freshwater-aquarium-water-ph store_origin: GB region: United Kingdom --- # pH range 6.0 - 7.6 compact 5.13-inch kit 250 precise pH tests API PH TEST KIT 250-Test Freshwater Aquarium Water pH Test Kit, 4 Piece Set **Brand:** api **Price:** £10.87 **Availability:** ✅ In Stock ## Summary > 🐠 Keep your aquarium’s pH in check — because your fish deserve the best! ## Quick Answers - **What is this?** API PH TEST KIT 250-Test Freshwater Aquarium Water pH Test Kit, 4 Piece Set by api - **How much does it cost?** £10.87 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/5088572-api-ph-test-kit-250-test-freshwater-aquarium-water-ph) ## 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 - • **Trusted Legacy:** Backed by nearly 60 years of API expertise, ensuring premium quality and proven results. - • **Precision pH Range:** Accurately tests freshwater pH from 6.0 to 7.6, tailored for diverse fish species’ needs. - • **Adapt to Your Water:** Detects pH fluctuations caused by tap water, fish waste, and uneaten food for proactive care. - • **Complete Testing Kit:** Includes solution, test tube with cap, and color card for effortless, reliable readings. - • **Consistent Aquarium Health:** Monitor pH weekly to prevent invisible water hazards and keep your fish thriving. ## Overview The API PH TEST KIT 250-Test is a compact, easy-to-use freshwater aquarium pH testing kit that offers 250 accurate tests within a pH range of 6.0 to 7.6. Designed to help aquarium enthusiasts monitor and maintain optimal water conditions, it includes a testing solution, color card, and test tube with cap. Ideal for weekly use, it detects pH fluctuations caused by environmental factors, ensuring a healthy habitat for a variety of freshwater fish species. Trusted for nearly six decades, API delivers reliable, professional-grade water testing for thriving aquariums. ## Description Keep your fish healthy and thriving by testing your aquarium water's pH regularly with easy-to-use API pH TEST KIT for freshwater aquariums. Testing water parameters weekly helps prevent invisible water problems that can be harmful to fish. pH is the measure of acidity of water, on a scale ranging from 0 to 14. A pH of 0 is the most acidic, while a pH of 14 is the most alkaline. Different geographies have different tap water conditions with different pH levels, while fish require a specific pH level to thrive. A pH of 7.0 is ideal when keeping a community aquarium containing a variety of tropical fish. Goldfish and livebearers prefer a pH of 7.5. Many desertcartian fish, like angelfish and neon tetras, prefer a pH of 6.5 to 6.8. Mollies and swordtails thrive at pH 7.2 to 7.5. API pH TEST KIT for freshwater aquariums test a wide range of pH levels from 6.0 to 9.0. Just dip a strip directly into your aquarium, and use the color-coded chart to determine if your water is safe or if adjustments are needed. Then follow the recommendations to treat the water – it's that simple! 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. ## Features - Contains one (1) API PH TEST KIT 250-Test Freshwater Aquarium Water pH Test Kit, including 1 bottle of testing solution, 1 color card and 1 test tube with cap - Helps monitor and adjust pH and prevent invisible water problems that can be harmful to fish - Accurately reads pH 6.0 - 7.6 and helps avoid fish loss - Because different geographies have different tap water conditions, and different fish need different pH levels to be healthy, API helps measure pH levels & detect pH fluctuation caused by fish waste, uneaten food and addition of tap water. - Use for weekly monitoring and when water or fish problems appear ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B000255NAK | | Best Sellers Rank | #45 in Aquarium Test Kits | | Date First Available | June 20, 2004 | | Department | men, women | | Item Model Number | 28 | | Manufacturer | Mars Fishcare | | Product Dimensions | 1.5 x 2.38 x 5.13 inches; 2.4 ounces | ## Images ![API PH TEST KIT 250-Test Freshwater Aquarium Water pH Test Kit, 4 Piece Set - Image 1](https://m.media-amazon.com/images/I/81tZ6HMZZNL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ must have if your serious about ph levels *by on Reviewed in the United States August 13, 2009* if your growing plants. then one of these is very handy. i ordered 5. and according to professional growers. ph test kits such as these are very suggested because they are very accurated. although expensive ph meter/ or test pens are also good, they are expensive around 80 and you can use it for a certain amount of times then you have to calibrate it again to increase the potency in accuracy. I avoid doing that because a good digital ph is like 80+ and plus the calibration to calibrate it back to default is extra. so i purchased 5 of these to get free shipping and got it. and each pack works for 250 times or 250 tests. so this is definitely a good deal to get. before you order make sure you find out the ph level you need to achieve for either your plants or fish tanks. instructions seems tricky at first but look at the same card. fill water till line. 3 drops. shake it up. and match colors. <4 simple rules. make sure to follow it. and this only tests from ph 6.0 to 7.6 so if you need a different ph number than those then check out some other products. cause this only one does 6.0 - 7.6. ### ⭐⭐⭐⭐⭐ Works as intended *by on Reviewed in the United States June 15, 2026* Product is good. ### ⭐⭐⭐⭐⭐ The fit *by on Reviewed in the United States May 12, 2026* They work well and great fit. ## Frequently Bought Together - API PH TEST KIT 250-Test Freshwater Aquarium Water pH Test Kit - API pH UP Freshwater Aquarium Water pH Raising Solution 118 ml 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.co.uk/products/5088572-api-ph-test-kit-250-test-freshwater-aquarium-water-ph](https://www.desertcart.co.uk/products/5088572-api-ph-test-kit-250-test-freshwater-aquarium-water-ph) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-10-16*