Bump in mouth of my Scott's fairy wrasse

[kevindub]

Hi. I am back to the hobby now that summer is almost over. The tank is still looking good but I have noticed my Scott's fairy wrasse has some kind of growth on the inside of the mouth on the bottom half, a small white bump that is sort of translucent. It is still doing well, eating and swimming, but I worry. I haven't paid attention to my tank for a while so I don't know how long he has had this problem. Do you have any idea what this might be?

 

[Len]

It could be physical trauma or Lymphosis, which has no known sure cure. It is a viral disease and usually goes away on its own if the fish has a healthy immune system.