Help! Cracked Phal spike. New dendro and mendenhall hildos care. BABY dendro care.

[captainbug]

Album of images.

On the phal: This is a phal I've had for 1 year. This will be its first rebloom. At some point, the new spike developed a crack near the base. I have a feeling it happened when trying to rearrange my forest and get this particular phal back into its window spot that it loves. Does this need to be fixed, can it be fixed? Or do I just wait and see what happens? The spike is still growing vigorously.

On the baby dendro: What do I do with this thing? It's about the size of a quarter. Just keep it happy in the moss until it gets larger? It's got coarse bark and terracotta pieces at the bottom. Judging by the little root it looks happy.

On the mature dendro: Does this need repotting? I notice this mass of roots circling the pot on the oncidiums I get, as well. I know oncidiums like a tight pot, but how tight is too tight?

On the mendenhall: This guy is a rescue. He's trashed from neglect, but in the couple weeks I've had him he's put out a tiny bit of new root growth. He also appears to have a new little leaf or pseudobulb (I can't really tell). I haven't pulled him out of the pot to look at roots and don't want to touch him too much before I'm sure of what to do. Any suggestions?