A calcium reactor is a device used in an aquarium to help keep levels of alkalinity and calcium level to the requirements of the livestock in the tank...

Calcium is one of the most essential mineral needed to sustain life of a human body Calcium has many functions like preventing the signs and symptoms of pre menstruation, reducing the possibility of hypertension, regulating muscle build up, strengthening the nerves as well and the most important use of calcium in the human body - maintaining strong bones and teeth...