Hi,
Looks like he is shedding all right.![]()
I would stick with the 2 hides for now - though those look like they may be a little big for him ( it's kind of hard to judge though). You could try and find the little flat trays for putting under flower pots to give him really snug hides. They like it cramped mostly.
How long have you had the tub set up with the substrate in it?
The humidity might stabilize on its own but if it remains high you can always drill extra holes in the tub from what I have read.
dr del