I'm a college student and I can't tell if my betta fish is sick or not. I really want to take care of this fish, so if you could give me some advice about if my fish is/is not sick and what to do about it, I would really appreciate it!
I have several concerns, but my biggest concern is the coloring of my fish's gills. They are very dark around the edges, and seem like they might be swollen (see attached pictures). I also can't tell if his fins look tattered.
I've read up a lot online about fin rot, but I don't know if giving my fish medication if he's not sick would hurt him. Any thoughts?
Also, my fish eats, but he gets really aggravated and swims around his tank in circles very quickly and flares his gills after eating a few pellets. Is this normal?
Anything you can tell me would be great!