Highly concentrated formula for raising calcium levels in marine aquariums. Ca Plus was created for maintaining shortages and sudden drops of calcium levels. Due to the most assimilable form it ensures easy raising of calcium levels in the aquarium. Calcium is necessary for corals to grow and its deficiencies may result in significant inhibition or stoppage of growth. Ca Plus supports calcification and provides corals healthy growth. The effectiveness of Ca Plus supplementation depends on the proper KH level, therefore it is recommended to use products that raise carbonate hardness (KH Plus or KH Buffer).