Bird wrass disease id

[robbyville]

Hi folks,

A local art gallery has pretty much the only other SW tank in town, the owner used a fellow who lived nearby to service the tank but he's no longer around.

The tank is a corner tank, looks to be no larger than maybe 40 gal and has no LR, but artificial decorations.

He has a female Bird Wrass of about 5 inches in length. It has been losing it's colour and has a cottony growth all over it's beak. It also looks like it's becoming discoloured (red) around the cheeks and gills.

I tried to take some pics which I will check out tonight and post if possible, but the fish moved so much it was difficult.

Any thoughts on what this might be? Sadly, I know nothing about the tank, parameters, etc but if need be I will try to work with the owner to get it figured.

Thanks,

Rob