The Electric Blue Acara Cichlid is generally peaceful even with its own kind. If more than one is kept, they will form pairs. They will also usually not bother any fish that stays away from its territory, except when it is breeding it may tend to become more aggressive. They will breed every two weeks on a regular basis if the fry are removed shortly after hatching. However they are excellent parents and will not harm the fry even if left in the aquarium.