API Calcium test kit
Calcium is one of the most important elements in a reef aquarium. Corals and reef invertabrates such as crustaceans, mollusks, and even some type of encrusting algae, need calcium to grow and remain healthy. Over time, the calcium level drops as it is used, or as it reacts with excess phosphate. The API® CALCIUM TEST KIT measures calcium levels as low as 20 mg/L to help you keep your reef inhabitants healthy.
Contains 2 test bottles, easy-to-ready instructions, and glass test tube.
Ships within 24 hours.