All natural source of colloidal phosphate and calcium from ancient marine deposits of oceanic sediment
Granular Calphos has been finely ground and processed through the modern granulating plant. Only natural materials are used to form the world’s only granular soft phosphate product. The granulizing process includes the addition of water and bentonite.
Contains 20% total Phosphate (P2O5) and 20% Calcium (Ca)