Hi, I have owned my male iguana for almost 3 yrs. and let me tell you how difficult they are to take absolute care of them.
I would recommend the book that I live by for all information about anything concerning my iguana. It is called:
GREEN IGUANA: THE ULTIMATE OWNERS MANUAL BY: JAMES W. HATFIELD III.
You have to feed them the correct amount of leafy greens, vegi's and fruits or he can get metabolic bone disease which will kill him. Must have the proper lighting. I believe that the cage length should be triple you iguanas length and the width should be double the iguanas length (from snout to tail) and as high as you can make it, they like to climb.
If you like the iguana to have a good temperment you should talk to your iguana daily. I did not try to just reach in and pick my iguana up, I would just put my hand in the cage far from the iguana and slowly (every minute or so) inch my hand closer to him, until I was able to touch him. I would not try to pick him right up, you have to imagine being so small and this big thing trying to pick you up, he thinks your going to eat him. And they should never be with another iguana, they don't like friends! they fight! the older they are the more calm they become I have found. They can be very costly to take to the vet, and to take perfect care of. If you can't take the time to give him your love and attention, it wouldn't be worth it. I treat my iguana like a baby, lots of love, my kids read books to him and sing him songs. I found that if you talk or sing very gently to them, they enjoy you more. they do not like loud noises. again, the book i refered you to earlier in this letter will answer any and all questions you may have. Hope it works out well for you and I hope that dear adult iguana finds a loving home. Oh, by the way they can get 6 ft. long. and about 15 lbs. just for you to know the size they can reach!
hope this helps
nicole