what about if you're using distilled and rockwool? is it generally good in all mediums but necessary with RO and coco?
spectrum balanced Reviewed by spectrum balanced on . what is calmag? could someone please tell me what calmag or cal-mag+ is? i research it and all i see is diet supplements from places like GNC. is this correct. haha i looked at my supply store and didnt see anything close to calmag. i also hear its much more potent that the label describes. thx for any info people could give me. Rating: 5