Does anyone know what this is? I noticed that in the fall one of my goldfish in my pond had this growth on her side, I figured it wouldn't survive the winter so I brought it in for the winter. Its almost spring and now she has about two or three of these bumps on her. The behavior seems fine (swimming and eating ok). It doesn't seem contagious as none of the other fish have it. Does anyone know what this is and how to treat it? Shes one of my sons favorite fish (named mega mouth) so I would like to save her if I can.
Thanks
Thanks