--- product_id: 311831080 title: "Calcium Test Kit Saltwater Aquarium Water 1-Count Kit, 69L (69L)" brand: "api" price: "€ 33.83" currency: EUR in_stock: true reviews_count: 5 category: "Api" url: https://www.desertcart.hr/products/311831080-calcium-test-kit-saltwater-aquarium-water-1-count-kit-69l store_origin: HR region: Croatia --- # Precision resolution of 10 ppm for trend tracking Detects calcium as low as 20 mg/L BPA-free, eco-conscious materials Calcium Test Kit Saltwater Aquarium Water 1-Count Kit, 69L (69L) **Brand:** api **Price:** € 33.83 **Availability:** ✅ In Stock ## Summary > 🌊 Stay ahead of the reef game with precision calcium testing! ## Quick Answers - **What is this?** Calcium Test Kit Saltwater Aquarium Water 1-Count Kit, 69L (69L) by api - **How much does it cost?** € 33.83 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/311831080-calcium-test-kit-saltwater-aquarium-water-1-count-kit-69l) ## 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 - • **Simple Weekly Testing:** Easy-to-follow instructions and included glass test tube make testing effortless. - • **Keep Your Reef Thriving:** Accurately monitor calcium levels critical for coral and invertebrate health. - • **Made in America Quality:** Trusted, BPA-free components ensure safety and reliability for your aquatic ecosystem. - • **Optimized for Saltwater:** Specifically designed for reef and marine tanks—no need for freshwater testing. - • **Track Trends, Not Just Numbers:** 10 ppm resolution lets you chart calcium fluctuations over time for proactive care. ## Overview The API Calcium Test Kit is a must-have for saltwater aquarium enthusiasts, providing reliable measurement of calcium levels down to 20 mg/L. Designed for reef tanks, it helps maintain optimal conditions for corals and invertebrates by enabling weekly monitoring with easy-to-use components. BPA-free and made in America, this kit offers a practical balance of accuracy and convenience to keep your marine ecosystem flourishing. ## Description From the manufacturer Testing the Waters 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. Most common water quality parameters are Ammonia, Nitrite, Nitrate, and pH. All may vary over time and all are invisible to the eye which is why it is important to test weekly. Testing aquarium water weekly will aid in keeping your most important water parameters within the proper range for your aquarium. Choose from a wide range of API testing options, such as our popular FRESHWATER MASTER TEST KIT or 5-IN-1 TEST STRIPS, for accurate water evaluation. Regular testing will help you easily determine your aquarium conditions. Find Your Ideal Testing Style! Your API Test Options Choose the test method that works best for you. Whether you’re a bit pressed for time, or you prefer to measure your parameters on a more in-depth scale, or you only need to test one or two specific parameters, API has what you need! Dip and Read Just dip a 5-in-1 TEST STRIP in your aquarium, swirl twice, and compare to our color chart for fast and accurate results. The Scientific Approach For more detailed analysis, use the FRESHWATER MASTER TEST KIT, POND MASTER TEST KIT, SALTWATER MASTER TEST KIT, or REEF MASTER TEST KIT for precise readings of parameters. Pick One (or Two) Need to check your phosphate levels? What about ammonia? API offers specific test kits to test many different parameters, from general hardness and copper to pH and nitrate. Grab the one you need for a streamlined approach to testing. Making a Better Underwater World At API, we understand the rewards and relaxation of fishkeeping because we have a passion for fish too. 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. *Claims not verified. Review: API is easier to use - Cost is high Review: Five Stars - Great product for testing. Works well! ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | API | | Item form | Stick | | Item weight | 68.04 Grams | | Manufacturer | Aquarium Pharmaceuticals | | Number of Packs | 1 | | Unit count | 1 Count | ## Images ![Calcium Test Kit Saltwater Aquarium Water 1-Count Kit, 69L (69L) - Image 1](https://m.media-amazon.com/images/I/61r4L5M4AzL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ API is easier to use *by C***H on 11 June 2020* Cost is high ### ⭐⭐⭐⭐⭐ Five Stars *by R***C on 9 October 2015* Great product for testing. Works well! ### ⭐⭐⭐⭐⭐ Nickel *by E***7 on 7 December 2019* Correspond à la description Bon produit et de bonne qualité Facile d’utilisation Je le recommande ## Frequently Bought Together - API Calcium Test Kit Saltwater Aquarium Water 1-Count Kit, 69L (69L) - API KH Carbonate Hardness Test Kit, multicolor --- ## 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.hr/products/311831080-calcium-test-kit-saltwater-aquarium-water-1-count-kit-69l](https://www.desertcart.hr/products/311831080-calcium-test-kit-saltwater-aquarium-water-1-count-kit-69l) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-20*