Two replys so far and neither one says 'Letting the two very different species co-mingle together is NOT a very bright idea.
The two species being from different parts of the world, do have a naturally occuring set of their own specific virus and bacteria which can get the other sick or very possibly kill them.
This is exactly the type of thing that causes so many mystery illnesses from pet store animals.
I seem to recall a pic somewhere on here where ya had them housed together also.
Same thing, Bad Idea.
You really need to pay attention to the good advice you find rather than doing what you wish with the animals.