mouth rot?

[Joshtih]

My blonde naso has what looks to be mouth rot (the only thing I can find that looks the same). I was able to get him into the qt, and will treat him there. Does anyone know of a way to treat the other fish that are in my tank? Anything reef safe? All the other fish look fine for now, so do I just wait until they get sick and move them once I can catch them? I lost another tang to whatever this problem is, so I assume it is contagious.

[winkkle]

I'd treat as many as possible as a preventative measure

[Joshtih]

I want to treat them all, but there is no way i can get all of the fish out ot the DT. Melafix says it is coral safe, but I am not trying to lose all of my coral. Does anyone know for sure if it is safe, or if there is something else? I am feeding Dr. G's to all the fish, should that be good enough?