I just adopted a Dragon. He is about 2 1/2. Tonight he started running around his cage, bobbing his head, and licking at the glass. At first I thought maybe it was because he say his reflection.
Hi there, males can be hormonal + territorial. Being in a new place he is stressed and unsure of everything and in the long run some males just are more high strung. Just give him time to settle in, and don't be worried if he doesn't eat for a few days or even weeks.
If you can, post pics of his entire set up [ including lights ] Here's how :