moss or bark for phal?

[sii]

I've learned the hard way when it comes to potting in moss. I almost lost a couple. After I repotted in bark, some of my little ones stopped growing roots. I don't know if it was a shock/adjustment for them. I've put them into tiny pots and check them almost every day. Since the weather has cooled off a bit, they are close to an open window almost all day. I'm a terrible overwaterer and so now I spray water just above the roots. But I'm no expert by any stretch...