Hello. We have had our 3 yr old beardie since he was a baby. Up until now, he's been an enclosure that was actually a tall armoire that had been made into one. He didn't have a lot of length to move around, so we finally got him a standard 4×2×2 from zen habitat. He's been in it for a day, and his beard is usually black so far. I assume this is normal? Lights are fine. Temp is fine. Anyone know how long it can take for him to get used to it? It is quite a change from his old one.