I’ve had this chameleon for about a year and some months and have never had this problem but this past month he has been dark for at least 7 hours a day sometimes going black. I’ve noticed he isn’t climbing in the plant either just stands on his 2 basking sticks. When he gets under the heat bulb he gets black and stays there for a while. I don’t think it’s too hot but I could be wrong it’s a 75 watt bulb about 11-12 inches away from basking stick. When I take him out of the cage which I do for at least 30 minutes a day or feed him he goes all bright and blue what do you guys think the problem is he looks depressed.