Oh ok I think I got it. They are fine where they are but if I want them higher just do it gradually over the course of 2-3 weeks. Thanks!
Oh, and are there any corals (including these) that might do ok if they are in some slight shade? I have lots of nooks and crannies in my rock work. Some areas are lit but not getting direct or full light. Does that make sense? Right now my zoas are tetering on one of those spots. The cluster is like a ball and the back side of the ball is facing shade, but the front side of the ball is getting full light. I guess I can just wait and see how they do. Right now it's the front side that's in full light that's not open all the way yet. Maybe that's cause it's morning and they are pissed someone just turned on the sun full blast. lol