I have a tank that measures 4 feet long, 2 feet tall, and 1 foot deep. Hopefully it will be empty soon (Putting iguana in larger enclosure). When Elroy decides that he will leave his tank (its in the enclosure right now, long story), I will have a lonely empty tank that NEEDS a friend. Here is what I want: something that will fit in this tank as a PERMANENT home, I dont want to have to build something bigger later. I dont really want to worry with keeping humidity up. I'd love Hermit crabs, but they need a high humidity dont they? I will be able to maintain heat and UVB. I dont want something that is very difficult to handle, so something that is not as aggresive as an Ig. I'd love to consider lizards (nothing tiny though) or snakes. What say ye?