I've posted a picture so there's no confusion in trying to explain what I see. If you look on her side fin its deep pink where it hasn't been before. She's in my 80gal with various cories, tetras, rasboras, glass cats and Trooper (my discus) there is also a syno catfish in there too. She is the only BN in there. Please if you know what this is or if I should be concerned let me know.