agression

Hello, my roommate also has a betta fish and I think he is a tail biter, but I wanna make sure. I guess we aren't technically roommates since we don't live in the same room but sometimes I go in her room to check on her betta because she keeps him in a tiny vase with no heater and no place to...

I used to think that my betta Cassius was chill and not especially aggressive, but that all changed today. I brought home two ramshorn snails to clean up some algae and Cassius decided to be a real bully. He might have killed one already. I pulled them out for tonight because there is still a...

I've had my two kissing gourami for over a year now in my 55gal community tank. They are both males and although they have their kissing spats from time to time, I have never had a problem with one being too dominant. In the last week or so however, I've noticed one of them has become a real...