HELP - I am looking for any help with my 13 year old maroon clown. She is not eating, has a clamped dorsal fin, she is staying near the bottom in one section of the tank and she has a strange bleached streak in her middle section. I have done two water changes. Added "Purigen". Raised the Ph from 8.0 to 8.3. The water temp is 80 and the other parameters are in the normal range. I do not see any other signs of illness. She does not have labored breathing and her scales, gills and eyes look normal..aside from the bleached area. I would appreciate any help. Thank you.