Please see the attached photo of Iggy. My husband and I have a Cuban rock iguana and several tortoises. I moved Iggy out with them a few days ago and he has transitioned very well. I think he likes having company. The water in the bowl looks dark. It is due to the lighting; it isn't dirty.
Another section of the enclosure has branches to climb. The green structure is heated year round. Everyone normally goes in there at night.
Have a great week!