I love my new little friends....now talk me down!

[Austinerd]

Hello All!
My Oak Hill Gardens seedling order arrived today! Yay! I have (all phals) amboinensis, bastianii, Intermedia, and 2 schillerianas. They are in bark and itty-bitty pots. They are cute! But now what.....they are under my shop-light style fixture with 2 T12 tubes, under which my other phals have been pretty happy. I have them in a mini domed greenhouse with a bit of water for extra humidity....though the ambient humidity in the area is usually between 50 and 70%. Soooo.....they don't appear to need water at the moment, and I think I should let them get adjusted to their new home. But after that, I'm a little freaked out on how to care for them. I know I want to try mounting a couple of them, especially the schilleriana, and maybe try S/H on one. How big do they need to be to be mounted or repotted? Any special care since they are seedlings? I realize it may take a few years for them to bloom if they grow well for me. Any ideas would be most appreciated!
Thanks!
Dan