I am a bit of trouble in my mind. I have over 40 orchids in my bathroom under a grow light. I keep that light on for more than I really should (12 hours) as hard as I try, my orchids will not grow roots. I don't care if they flower right now or not, I just want healthy plants. I know that most of my cattleyas are not going to make root, but I am worried about my others, any tips?