Help with my purple tang


New member
My purple tang has been in my tank for about 4 months and was eating and swimming fine and was very healthy

Today suddenly his left eye has become cloudy, how does this usually happen? He was not getting bullied by any fish and I have more delicate fish that are not sick. what puzzles me is that he is swimming normally and he eats flake food and nori just like before.

Is this a disease or something that will just go away? I dont have a separate treatment/quarantine tank, is there any way to help the fish?

Just keep an eye on him for now...One eye is usually the result of an injury...Both eyes could mean bacterial or worse- parasites..

Do a water change and keep water pristine, hopefully it will clear up on its own