Is different types of tree frogs still considered mixing?

[tydis]

It's best to keep one species per tank.

[John]

Mixing is always tempting but because of the risks of disease and parasite transfer, cannibalism, and aggression, it's never a good idea.

[leesahlynn]

ah, I see, so even species within the tree frog category itself shouldn't be mixed.

I guess that just means I'll have to clean out and re-set up the tank the red eyes are in now!
I'm beginning to have quite a menagerie of tree frogs here.