Hi, thanks for the advice. No she's not in a glass tank I've attached a photo of the cage she is in. She comes out of her green house runs straight onto her wheel and stays on that and doesn't explore the cage. She stays on the wheel all night then stocks up on food, has a drink then goes straight back into her house. I was wondering if I should take the wheel out for a bit so she can explore the cage more and maybe get more comfortable. She's just obsessed with the wheel. Would removing the wheel for a period of time maybe help?