--- product_id: 4435654 title: "API CALCIUM TEST KIT Saltwater Aquarium Water 1-Count Test Kit" price: "185 kr" currency: DKK in_stock: true reviews_count: 13 url: https://www.desertcart.dk/products/4435654-api-calcium-test-kit-saltwater-aquarium-water-1-count-test store_origin: DK region: Denmark --- # Weekly monitoring for consistent reef health Includes 2 test solutions + capped test tube Accurate 0-4 ppm calcium detection API CALCIUM TEST KIT Saltwater Aquarium Water 1-Count Test Kit **Price:** 185 kr **Availability:** ✅ In Stock ## Summary > 🌊 Keep your reef radiant—test calcium like a pro, every week! ## Quick Answers - **What is this?** API CALCIUM TEST KIT Saltwater Aquarium Water 1-Count Test Kit - **How much does it cost?** 185 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/4435654-api-calcium-test-kit-saltwater-aquarium-water-1-count-test) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Complete Testing Kit:** Includes two bottles of testing solution and a capped test tube for accurate results. - • **Trusted Reef Care Brand:** API’s 60 years of expertise ensures premium quality and proven aquarium solutions. - • **Simple & Reliable Testing:** Easy-to-use kit with clear instructions for hassle-free weekly monitoring. - • **Precision Calcium Tracking:** Detects calcium levels from 0 to 4 ppm to keep your reef thriving. - • **Protect Your Coral Investment:** Prevents invisible calcium deficiencies that stunt coral and crustacean growth. ## Overview The API Calcium Test Kit is a must-have for saltwater aquarium enthusiasts, offering precise calcium level detection from 0-4 ppm. Designed for weekly use, it helps prevent hidden calcium deficiencies that can harm corals and crustaceans. The kit includes two test solutions and a capped test tube, making it simple to maintain optimal reef health. Backed by API’s 60 years of aquarium expertise, this kit ensures your aquatic ecosystem stays vibrant and thriving. ## Description Keep your aquatic life healthy and thriving by testing your aquarium water's calcium levels regularly with this easy-to-use API CALCIUM TEST KIT for aquariums.Testing water parameters weekly helps prevent invisible water problems that can be harmful to fish. Calcium is one of the most important elements in a reef aquarium. Reef invertebrates such as corals, crustaceans, mollusks and even some types of encrusting algae need calcium to grow and remain healthy. Over time, calcium levels drop as invertebrates use calcium in aquarium water. The API CALCIUM TEST KIT measures calcium levels as low as 20mg/L. It contains two calcium test bottles, capped test tube and instructions. For use in reef aquariums. 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 CALCIUM TEST KIT Saltwater Aquarium Water 1-Count Test Kit, including 2 bottles of testing solution and 1 test tube with cap - Helps monitor calcium and prevent invisible water problems that can be harmful to coral & crustaceans - Accurately detects calcium levels from 0-4 ppm - Prevents low levels of calcium which inhibit corals and crustaceans growth - Use for weekly monitoring and when water or aquatic life problems appear ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.5 out of 5 stars 703 Reviews | ## Images ![API CALCIUM TEST KIT Saltwater Aquarium Water 1-Count Test Kit - Image 1](https://m.media-amazon.com/images/I/61r4L5M4AzL.jpg) ![API CALCIUM TEST KIT Saltwater Aquarium Water 1-Count Test Kit - Image 2](https://m.media-amazon.com/images/I/61eqIt-1RjL.jpg) ![API CALCIUM TEST KIT Saltwater Aquarium Water 1-Count Test Kit - Image 3](https://m.media-amazon.com/images/I/513wExNx64L.jpg) ![API CALCIUM TEST KIT Saltwater Aquarium Water 1-Count Test Kit - Image 4](https://m.media-amazon.com/images/I/71WlieRyn8L.jpg) ![API CALCIUM TEST KIT Saltwater Aquarium Water 1-Count Test Kit - Image 5](https://m.media-amazon.com/images/I/81BPL8z5v5L.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by K***N on June 7, 2017* ### ⭐⭐⭐⭐⭐ Review *by B***N on September 29, 2015* ### ⭐⭐⭐⭐⭐ Review *by B***E on March 28, 2014* ## 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.dk/products/4435654-api-calcium-test-kit-saltwater-aquarium-water-1-count-test](https://www.desertcart.dk/products/4435654-api-calcium-test-kit-saltwater-aquarium-water-1-count-test) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-05-12*