My Tegu is 2 years old and is very inactive. He's in a 5×8 enclosure and is fed every other day. He acts like he's depressed! He sleeps constantly and wants to be left alone. There was a short period of time where he was more active but for the most part he just sleeps!! Any advice would be appreciated! I am thinking of rehoming him because he's not happy and I don't know what to do about it!!