Looking for a diagnosis!

[Shwabber]

Well....she has passed....

Now to figure out what it was....and will my other clown or fish be affected....

If it was Brook....can my Fox-Face or Hippo Tang pick that up???

My Fox Face does have a couple of white fuzzy spots possibly on his tail....hard to tell for sure though.

Are there people out there who can do a kind of inspection...or is there a way I can do this myself.....more research I guess.