what u should do is get about six baby ones and raise them up and they should pair off by bout 1" and then pick the pair or pairs u want. make sure to ave lots of hiding spots and such because if they have lots of vision breakers it will make it less of a warzone. u should try to look for these " new " electric blue cons my lfs has them they look the same but are like a neon tetra blue but without the glow. they are so cool but im tryin to keep my 55 peaceful. imma get on for my 10 gallon and when i do ill pst a pick. dont worry guys hell be goin in my 29 soon enough