Why do the fairy fish always fight

Why do fairy fish always fight? If they do not get injured, owners can let them go and wait for the oldest one to appear among them, then they will not fight anymore. If they are fighting while feeding, they are grabbing food. In this regard, owners can use the method of feeding in batches to alleviate the situation of fairy fish fighting. The owner can feed the larger ones first and then the smaller ones last. However, no matter what the cause of the fight is, once the fight is found to become serious, the owner needs to keep them apart in time. Moreover, the injured fairy fish needs to be kept separately and treated promptly.