They have been together since I got them and do get along..The enclosure that I am in the process of building will be 2ft wide and 4'6long and as tall as I feel like maybe two feet tall..I have them in one that is 24in by 32in long with a height of about 2ft.I am thinking as they grow they will need more room.They dont move around all that much mostly staying under the basking light except when they are hungry or want to cool off.Thanks.BTW I also have a slate bottom with sand in the cracks around the pieces of slate is this a good substrate?