If you're asking, I think you're still too new to the husbandry issues to recognize stress in your animals if they are. I think for people new to the hobby, housing apart makes more sense. I think I have a few of my animals that would do just fine together, but I know a couple of them would suffer for the having another animal in their enclosure. At the beginning, I don't think I would have been savvy enough to recognize some of the subtle signs of stress in some of my animals, and even now, I would rather house apart for all the other reasons listed above. I would also include spreading of disease if one of your animals should become ill with parasites or something like that. You could also count on the other co-habitated animal becoming ill as well. Not worth the risk in my book.