Pure Reef Calcium promotes skeletal support. Calcium is one of the major ions in seawater. Its concentration in natural seawater is about 420 ppm. Calcium is very important in a reef aquarium as many organisms, including corals and coralline algae, utilise it in order to deposit calcium carbonate skeletons.
Low Calcium levels in your aquarium may cause:
- Weak and brittle skeletons in SPS and LPS corals
- Organisms to become stressed and die off