He is adorable. I've never had any as small as the ones I have now and I'm finding it quite difficult. I have no real words of wisdom for you other than to read Melissa Kaplan's Iguanas for Dummies and Hatfields book Green Iguana: The Ultimate Owners Manual. Make sure the little guy has a UVB light, good mixed greens, and a temperature gradient with a basking area where he can get his temp up to 95 and a cooler section in the upper 70s with a humidity of, ideally, around 90%. Green Iguanas aren't easy, but they are well worth the time and trouble.