Kind Base is unique because it contains all of calcium without trace minerals magnesium or sulfur. By including all of the trace minerals in the Grow and Bloom formulas growers can effortlessly customize their calcium and nitrogen levels without affecting the balance of these essential elements. This revolutionary formula was designed to allow for maximum versatility throughout the grow cycle. Using Coco Coir or Reverse Osmosis water? Simply increase the base to increase your calcium levels. Kind is ideal for Coco Coir based media RO Water and plant types that require high levels of calcium and nitrogen. Using Clay Pebbles Rockwool or have hard water where less calcium is needed? It’s as easy as reducing the amount of base you use. Simply manipulating the level of Kind Base allows you to precisely control the levels of both calcium and nitrogen to meet the specific needs of whatever Kind you grow.