I used to have one skunk, albino, and leopard (which actually might be trilineatus) in my 10 gallon. But the albino was never grouping, the leopard tried to group with the skunk, but the skunk paid it no attention. So it didn't work out too well. I returned the albino and got two more leopards, and now I see a lot more interaction between the 3 leopard cories.