German Blue Rams are typically considered peaceful and social, making them well-suited for community tanks. However, their behavior can change under certain circumstances such as during the breeding period or if the aquarium is overcrowded, leading to territorial disputes.
In such scenarios, the usually friendly German Blue Rams can demonstrate aggressiveness. This is often manifested by chasing off intruders and protecting their established territory. To manage possible aggression, give them sufficient space, visual barriers, and plenty of hiding spots. In case of severe aggression, it might be necessary to separate the troublemakers.