I hope you reconsider keeping two breeds together--although some do it with no problems, who knows what different parasites they can have that could even kill one another. Please do some reading on the dangers of mixing species which would not come across each other in the wild.
I agree with tortnerd, I would definetly reconsider putting them together they are not from the same area and may carry different pathogens, we have a thread on here of two sulc. mixing and one winding up sick, please please reconsider.