My iguana, Spaz, is about 7 months old.

Spaz stays in the corner most of the time and hardly goes to his lighted "sunny" side of the cage. In the past Spaz would only stay on the lighted side. Spaz has also become very lazy.

Should I be deeply concerned? Any advice would be extremely helpful. Thanks.

Is he shedding? They get kind of moody and temperamental during shedding. What are the temperatures?