With these points in mind, here are some care tips for young iguanas that we've gleaned from books and web sites, and tried to apply in our care for Kiwi when he a very young iguana. Apparently it worked, because he is now very big and healthy. For more care information, please visit the Giant Green Iguana Page . For this baby iguana, we used a 16 cu. All iguanas need to have both hot and cool areas available to them, so that they can thermo-regulate.
Hot rocks are a bad idea - iguanas do best with heat from above.
Cage substrate is important. Avoid stuff that the young iguana will eat, like gravel. We've had good luck with washable indoor-outdoor carpet. Some people use sand, but I don't have enough information about the potential hazards of this to recommend it. Even though baby iguanas rarely drink water, they still need to have some clean water available to them at all times.