I'm afraid I'm not very good with disease diagnosis at this point, but I'm sure one of the
#fishmedic on the forum here can help you out. While we wait for them, though, I'd suggest reading through the link below (particularly the "Aquarium Parameters," "Water quality," and "In-depth Information" sections) to figure out what info you can share here to get the best diagnosis and treatment advice possible:
Aquarium Fish Disease Problem Solving Determining the best course of action for a problem with your aquarium can be a difficult task. Even advanced aquarists will often need to seek the help of others for complicated or unique issues. Our intent here on Reef 2 Reef is to offer expert advice...
www.reef2reef.com
Also, for future reference to help you get disease help faster, these sorts of topics are best posted in Reef2Reef's "Fish Disease Diagnosis and Treatment" forum:
A forum for discussing treatment and diagnosing saltwater reef fish.
www.reef2reef.com