Does anyone know if sterbai catfish are aggresive with one another as 2 of mine have split fins like they have been fighting. I have 3 in a tank with 1 bristlenose, 3 platties, 6 neons, several guppies and 2 discus. I don't think any of the other fish are doing it and have seen them chasing the bristlenose and I think each other or they may be following each other it's difficult to tell as they are so quick. Any ideas?