I'm sure you've heard it before, but housing multiple animals together other than for the purpose of breeding serves only to complicate husbandry and is potentially risky. *Generally* speaking, it's better to house them separately, as they don't need company to be happy. Yes, I know some people can and do house multiple animals together, and I'm not impugning your abilities as a keeper, but I would urge you to ask yourself honestly whether the benefits outweigh the risks, especially with your plan of housing multiple species together.