https://www.chewy.com/education/fish/general/aquarium-fish-aggression
Aggression in fish often stems from competition over territory, mates, and food. Some species are territorial, claiming areas such as caves, rocks, or plants to rest, hide, or breed.
Fish defend these spaces aggressively, especially against rivals of the same species and sex, as they aim to protect their breeding grounds.
Even peaceful species can sometimes act out, with signs of aggression including torn fins, missing scales, or fish hiding.
Territorial disputes can be resolved through displays or fights, but sometimes they escalate into more severe battles.
One way to address this is by rearranging the tank decorations, forcing the fish to re establish territories, which can ease tensions. In some cases, creating hiding spots or visual barriers can help reduce conflict.
When aggression persists despite efforts to calm things down, separating the fish may be necessary.
This decision is tricky, as removing the victim can sometimes reward the bully, but if injuries are severe, relocation may be essential to prevent further harm.
One solution is to use a net breeder to isolate the bully, allowing other fish to claim stronger territories. In more extreme cases, a separate quarantine tank might be needed to treat injured fish or separate persistent aggressors.
For non territorial species, like tiger barbs, aggression may decrease when kept in larger groups, as they tend to be less problematic when in schools of 6 or more. Sometimes, adding more fish can be the key to reducing conflict in the aquarium.
In this article, Chewy editorial team explains fish aggression, starting with the factors that trigger fights. By understanding fish behavior, you will be better equipped to prevent and address aggression in your aquarium.
And when things go awry despite your best efforts, they helped to outline key steps you can take to resolve the issue and maintain peace in your tank.
