I don't have time to read through the previous posts, so I'm sorry if anything has been said already.

I have a lot of relatives with Iguanas, so I know a little bit..

Do you have a set-up for him? They need lots of space. Iguana's should have a UVB/UVA light, and also love natural sunlight/to be near a window.

The iguanas I know do not eat any insects, but they eat lots of fruit and veggies. Some good things are romaine lettuce, lots of greens(collard, bok choy, chard, dandelion..etc), strawberries, snow peas(my beardies love them!)..etc.

Iguanas should also be handled everyday, to make sure they are tame. They are also good at letting you know that they don't want to be bothered at the moment

*Edit* They do like baths, and it will also help with shedding

*Edit again * I forgot to mention that I find it so strange that people can win Iguanas at fairs As I believe they are a pet that you need to research alot.

I hope that helps a bit!