he sounds fine.......
if your worried about hydration being that he is only 5mnths...give him a bath
just put a rock in the middle of the kitchen sink...fill with luke warm water..until its shoulder height
mine love holding my hand during a bath
gapping his mouth..he is trying to absorb more heat..
its amazing how much heat there body needs to heat to eat digest & eventually breed
so to heat up....& so they can absorb more to help them function they gape...take in cool air
temps are the same as most dragons........38-40* at head height under basking light....23* at cool end
under a year old........i dont let it fall under 20* at night
d/l