I haven't tried that, I'll try removing substrate and lowering the temp. Hadn't thought of that!
As for the hide, it's just a little bit too big for him but the medium size is too small. He likes to get all the way to the left where his body touches 3 sides, but not the other side or the roof. It could ideally be a lot more snug though. I leave a little space between the back of the hide and the tub and he likes to squish himself back there where it's nice and dark.
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