You are completely right, when an animal begins to act odd the first place to start is with husbandry! I agree that the initial poster should definetly analyze his enclosure for reasons for the snakes scale loss.
Yes the cages are custom made. My boyfriend made the cages, so I don't know all of the details. We used 1/4 inch plywood for the "box" and plexiglass with plastic tracking to make sliding doors. I didn't seal it, but used plastic cabinet liners to line the bottom to make it easy to clean. I would recommend sealing it, but we built the cage first, and couldn't use chemicals in the reptile room, so were stuck! I would put in some sort of latch to keep the doors from being pushed open by larger snakes...as that was a big problem for me. I'm sure you've seen this picture already if you have been flipping through the old posts, but here it is again:

We have holes drilled for the cords to the heat pads, but heat tape would work well also. We drilled two holes in the mortar tub (hidebox). One holds the water dish, and one is for entrance/exit. FYI the tall multi colored rack is an old rat rack!
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Thanks,
Amy
www.myboids.4t.com
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2.17 Normal ball pythons
1.0 Pastel ball pythons
0.0.1 Sinaloan Milk Snake
0.0.1 Plains Garter
0.1 Normal Kenyan Sand Boa
2.0 Anery Kenyan Sand Boa
1.0 Mid-Baja Rosy Boa
0.1 Leucistic Texas Rat
1.2 Dumeril's Boa
My list is too long, so I'll stop here!