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API Calcium Saltwater Aquarium Test Kit For Aquatic Saltwater Fish Tanks

<ul><li>Accurate Calcium Detection: Accurately detects calcium levels from 0-4 ppm and measures calcium levels as low as 20mg/L.</li><li>Comprehensive Kit Contents: Contains two bottles of testing solution, one color card, and one glass test tube with cap.</li><li>Calcium Level Monitoring: Helps monitor calcium and prevents low levels of calcium which inhibit corals and crustaceans growth.</li><li>Weekly Water Testing: Use for weekly monitoring and when water or aquatic life problems appear.</li></ul>

Accurate <ul><li>Contains one (1) API CALCIUM TEST KIT Saltwater Aquarium Water 1-Count Test Kit, including 2 bottles of testing solution, 1 color card, and 1 glass test tube with cap</li><li>Accurately detects calcium levels from 0-4 ppm</li><li>Use for weekly monitoring and when water or aquatic life problems appear</li><li>Helps monitor calcium and prevent invisible water problems that can be harmful to coral &amp; crustaceans</li><li>Prevents low levels of calcium, which inhibit the growth of corals and crustaceans</li></ul>

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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 glass test tube, and instructions & color card. For use in reef aquariums. With API Aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium.

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the instructions are a bit confusing. If there is a kit with a different proceedure id try that one instead. the color to match in the instructions is clearly purple, but the instructions say blue.

Is there a different one?