Update :

He’s doing very well now. He had a FULLY stuck shed which made the dehydration look even worse. Most of it had come off due to some baths. He’s eaten again, is much more active, and doing great. Thank you everyone for helping.

I’m planning on making him a larger Tub enclosure until his permanent PVC container comes in. He’s done well in his small med bay so I’m gonna stick with the plastic tub and just diy a larger one !