Hi everyone. This is my first post. Even though I have kept fish for years since I’ve started watching aquarium co-op videos, I realize how little I know and most of my successes with fish have been sheer luck!!
I just noticed one of my rainbow fish seems to have an injury. Wondering if I should test the tank or quarantine just him. I have a little snappy tetra and a few other males who appear to be aggressive towards him. I’m not certain if that is the cause of the injury or if they are now doing it because he is injured. Any help would be greatly appreciated. Kind of attached to these fish 🤪
