--- product_id: 47963393 title: "API GH & KH Test Kit for Freshwater Aquariums, 1 Kit" brand: "api" price: "R$294" currency: BRL in_stock: true reviews_count: 13 url: https://www.desertcart.com.br/products/47963393-api-gh-and-kh-test-kit-for-freshwater-aquariums-1 store_origin: BR region: Brazil --- # Accurate GH & KH measurement Weekly water quality monitoring Includes 2 test solutions & glass tubes API GH & KH Test Kit for Freshwater Aquariums, 1 Kit **Brand:** api **Price:** R$294 **Availability:** ✅ In Stock ## Summary > 💧 Keep your aquarium thriving with precision water testing—because your fish deserve the best! ## Quick Answers - **What is this?** API GH & KH Test Kit for Freshwater Aquariums, 1 Kit by api - **How much does it cost?** R$294 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/47963393-api-gh-and-kh-test-kit-for-freshwater-aquariums-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 - • **Complete Testing Kit:** Everything you need—2 bottles of solution, color card, and glass test tubes—for professional-grade water analysis. - • **Stress-Free Fishkeeping:** Maintain optimal water hardness to promote healthy fish behavior and longevity. - • **Proactive Aquarium Health:** Catch invisible water problems early to prevent fish loss and maintain vibrant aquatic life. - • **Routine Monitoring Made Easy:** Designed for weekly use, ensuring your freshwater ecosystem stays balanced and thriving. - • **Precision Water Hardness Testing:** Pinpoint your aquarium’s GH & KH levels to match natural habitats and keep fish stress-free. ## Overview The API GH & KH Test Kit offers precise measurement of general and carbonate hardness in freshwater aquariums. Equipped with two testing solutions, glass test tubes, and a color card, it enables weekly monitoring to prevent stress and disease in fish by maintaining water conditions that mimic their natural environment. Ideal for proactive aquarium management, this kit helps ensure a healthy, vibrant aquatic ecosystem. ## Description 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. 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. Feed your fish twice daily only the amount of food they 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. Overfeeding & low quality nutrition cause unconsumed food and more excrement which cloud water and raise harmful ammonia levels, possibly leading to fish loss. Take time to observe fish and the water temperature to ensure they are active & healthy. 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. 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. 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. ## Features - Contains one (1) API GH & KH TEST KIT Freshwater Aquarium Water Test Kit, including 2 bottles of testing solution, 1 colour card and 2 glass test tubes with cap - Helps monitor water quality and prevent invisible water problems that can be harmful to fish and plants and cause fish loss - Accurately measures GH & KH in freshwater aquariums - Water hardness is a measure of the dissolved mineral content of water and should match fish natural habitat to prevent fish stress and keep them healthy - Use for weekly monitoring and when water or fish problems appear ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B003SNCHMA | | Batteries Included | No | | Batteries Required | No | | Best Sellers Rank | 11,838 in Pet Supplies (See Top 100 in Pet Supplies) 23 in Aquarium Test Kits | | Customer Reviews | 4.7 4.7 out of 5 stars (5,626) 4.7 out of 5 stars | | Date First Available | 8 Aug. 2009 | | Item Model Number | 58 | | Item Weight | 70.8 g | | Number Of Items | 1 | | Pet Type | Fish | | Product Dimensions | 6.99 x 4.13 x 13.02 cm; 70.87 g | | Quantity | 1 | | Size | 1 Count (Pack of 1) | | Volume | 1.25 | ## Images ![API GH & KH Test Kit for Freshwater Aquariums, 1 Kit - Image 1](https://m.media-amazon.com/images/I/518PHJWONXL.jpg) ![API GH & KH Test Kit for Freshwater Aquariums, 1 Kit - Image 2](https://m.media-amazon.com/images/I/91q9ER-WJFL.jpg) ![API GH & KH Test Kit for Freshwater Aquariums, 1 Kit - Image 3](https://m.media-amazon.com/images/I/51hXtDFPf0L.jpg) ![API GH & KH Test Kit for Freshwater Aquariums, 1 Kit - Image 4](https://m.media-amazon.com/images/I/71GkdCyCuBL.jpg) ![API GH & KH Test Kit for Freshwater Aquariums, 1 Kit - Image 5](https://m.media-amazon.com/images/I/81T3-ZFwqBL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Superb products. *by on Reviewed in the United Kingdom 23 February 2026* Superb product. API is one of my resources for many of my aquarium essentials. Never had any problem with any of there items. Great value for money, with many products giving you size options for what you need.All products from medicated to water parameters and plant care. These products are made with an ease of understanding for what that purpose is and will help you on your fish keeping journey. ### ⭐⭐⭐⭐⭐ Only way to test *by on Reviewed in the United Kingdom 10 July 2026* Does as it says excellent kit ### ⭐⭐⭐⭐⭐ Essential bit of kit for aquariums especially in soft water areas *by on Reviewed in the United Kingdom 30 May 2026* Works very well, very simple to use to get accurate results ## Frequently Bought Together - API GH & KH TEST KIT Freshwater Aquarium Water Test Kit, 2.5 oz. - API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-colored - SaltyShrimp Shrimp Mineral GH/KH+ 100g --- ## 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.com.br/products/47963393-api-gh-and-kh-test-kit-for-freshwater-aquariums-1](https://www.desertcart.com.br/products/47963393-api-gh-and-kh-test-kit-for-freshwater-aquariums-1) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-08-27*