Have you asked your hydro guys what their thoughts are on foliar feeding? I mean ones that have tried it? I hope it's not a complete sham (what? Dutch Master lie to me?), or I just wasted... I don't know but it's well over $100. My hydro guys in two different stores were very excited about it. They say it absolutely makes the plants go crazy. Sorry people, I just gotta try, especially since they won't take back nutrients.