Some Bearded Dragons go through something called relocation stress. This is when the Bearded Dragon is moved to a new place, or sometimes just when something in the tank is changed, and the Bearded Dragon reacts by going off his food, not being as active, and being generally less chipper. This doesn’t happen for some Bearded Dragons, but in most it does. It can last from a couple of days up to two weeks. If your Bearded Dragon is going through relocation stress, keep the handling to the minimum and be patient. Before you know it they’ll adjust and be back to their normal selves.