I currently have a Russian tortoise. He is a young adult I'm guessing and right now I have him in an open aquarium. I am planning in building a turtle table of some sort in the near future. I want to add another tortoise to the inclosure when I get the table finished. What are some tort species that I could add (red-foot, etc) that would have similar climate conditions? Has anyone ever mixed species together and have any helpful suggestions? Whether they will get along is a big question, might separate sides of the table if needed be?