I agree with Going For Broke. Its very common that many people think this fish do not go with that fish, but its been known to be mixed together for a long time. Everyone have different opinions on which fishies can be together. I've read that Gouramis can not be with Tiger Barbs, but it is no problem for me. Each fishies have their own personality, so you just got to try and see what happens. As for what Guppy is saying about mixing Africian and South American mixtures, he is right, but any fishies can adapt to the tankmates and water conditions. I believe that fishies introduced to each other at such a very young age will have a greater chance to coexist together in the tank peacefully as they become older.
Thunder