If you buy them all at the same time, and stock with juvies, the tank size itself is fine. Many people overstock their tanks because there is less aggression. As long as the little fellas grow up together, you can minimize problems.
I would say that 10-12 would be fine, and you can really get a good variety if you do only 1-2 of each species. If there is only one of a species, there generally isn't the same territorial aggression.
If there is only one of a species, there generally isn't the same territorial aggression.
my first african tank was 36" x 15" x 18" with 8 zebras of all different colours. no problems untill you interupt the balance
It is not suggested to choose all differnt species. This is how hybrids are made....