I have searched and searched and have no idea what this could be, about three weeks ago my angelfish first developed what looks exactly like a whitehead pimple on the side of her body just below her top fin, which i then moved her into a qt tank and treated with furan-2 for a week and it seemed to have mostly cleared it up so i put her back with her man, then a few days later on the other side of her body in the same spot another pimple came up, and the old one started to come back, the pimples eventually are turning into holes as the "whitehead" comes out. she is eating and being a pain to her man as usual, none of my other fish have signs of illness and my water levels are all fine. You guys are my last resort, please help me diagnose my angel so i can treat her and get her better and back into breeding!
attached hopefully are some pics of her latest pimple
Thanks in advance!


attached hopefully are some pics of her latest pimple
Thanks in advance!

