can you mix white tail acei with yellow tail acei? For example 4 yellow tail and 2 white tail to make a group of 6. I know it would be ideal to have 6 of each but wondering if they can be mixed to form a group of 6. thanks for any help
Apart from breeding issues (just do not save fry you are not sure of) a male of each may, or may not, quarrel a lot. It is your risk, if you have to remove a male. Males don't really color up that intensely anyway, but I think the "White Tail" males are more interesting. Maybe just have females of "Yellow Tail", they are always somewhat attractive, instead of a male of each.
Would it be a disaster? Probably not. Certainly not for breeding. One type may do better than the other, don't expect them to make a perfect group.