Calcium Test

Testing calcium levels in a reef aquarium is essential for coral health, as corals use calcium to build their skeletons. Ideal calcium levels for reef tanks range from 380 to 450 ppm. To test, use a calcium test kit that typically involves adding a reagent to a water sample until a color change indicates the concentration. Regular testing helps maintain stable calcium levels, which is crucial for coral growth, as fluctuations can stress the inhabitants. If levels are low, supplements can be added to restore balance, promoting a healthy reef environment.