She's in a 18x18x48 melamine (or was it 18x24x48...)! I would not recommend. LOL. The material is so, so heavy... I wish I spent a few hundred more on a PVC enclosure.
She's been in there for a few months so far, yeah! I decided she outgrew her 110qt tub.
Does she use that hide? I gave mine a hide once and he either buried under it or sat on top of it. So I just took it out - it seemed more like an obstacle than a tool for him. And maybe I missed it, but what's your heat source?