For sure. We only use rockwool for our clones and they are soaked in our solution before we ever use them as a preventative. I guess I just never thought about my health relations to them other than that.

But we transplant these into Flora Flex pots with coco coir or sometimes our own coco. Vegbloom nutrients really do the trick for us. Dosatron hooked to tanks. 4 of us can run a 5 room 200 lb a month facility.