Approaches to aggression in stocking a 120

[DOO-E]

Okay it all depend if you want an active flashy tank with a high activity level, i would go with more aggressive species but if you like a colourful tank that all the fish seem to get along and moderate activity i would go with the Calmer more doctile fish. The only thing is with the more aggressive fish more precaution has to be taken when adding new species.