Angelfish Mouth Disease

I just finished goooogling my brains out and could not find any serious
discussion or solutions. I just lost an Altum a few weeks ago because it's
lips / mouth was so swollen (about the size of a pencil eraser) that it
could not eat. Now in the last few days another Altum is getting the same
problem. I had three beautiful Altums, now two, and do not want to loose
these too.

Any idea's? cures? A site with REAL info on this disease? Tried TAS & TAS
II forums, but it seems as if there is little action there.

Is there a Doctor in the house?

JOhn