Brumation question

[agates0523]

And just an FYI, UVB light doesn't penetrate glass at all, so sitting him in a window or having light coming through a glass lid, etc. will not provide any UVB light. If he was outside in the sunlight for a few hours and was active, then got lethargic and hid when put back on his tank, then yes, that's your issue most likely. And if he's outside, you want an area in direct sunlight and an area in shade, he'll move as he wants to. But he needs 12-14 hours of UVB light every day in his tank, and he's basically getting none when in his tank now, so I really think that's your issue.

Thank you very much for the insight! I will be going to the pet store tomorrow morning to get this. Assuming this is the issue, how long do you think I should expect it take to notice a behavior change?