mulga bill
Active Member
G,Day all. I see that a few of the major cal/mag manufacturers, Botanicare, Generalhydroponics, amongst others that produce cal/mag for growing mj are using Calcium derived from different sources, ie, Calcium Nitrate and Calcium Carbonate . One is much more readily available to the plants roots than the other? I generally use a cal/mag product in Australia derived from Calcium Carbonate ! Am i using the wrong one ? I want to use the cal/mag for Pre-charging my CoCo and for use throughout the grow. Does it really matter which one i use ?