If you can, I think it's better to add all the fishes in at once. If you can't, then add the least aggressive species first and finish adding in the most aggressive species at the end.When the tank is cycled and all, should I add all the fish in at once or should I get a couple of fish until I build up my full stocklist? The reason why I'm asking is because If I add them slowly, the dominant cichlid may bully the newcomers.