My foxface is showing an injury or disease ring on its left flank behind the gills. It does not appear to protrude, but is flat. It has developed over the last 2 days. The fish is acting normal, eating well, and active. I have closely inspected the other fish (tangs, clowns, cardinals) and do not see any issues. I also have nems, banded coral shrimp, and a fire shrimp in this tank. I would really appreciate your suggestions on what this is, how to treat it, and if I need to move the foxface to my small quarantine tank.
Thanks in advance for your suggestions.
Thanks in advance for your suggestions.