Large White Spot on Coral Beauty Fin

Hey Everyone,

Just wanted to try to get a quick answer about an issue I saw on my Coral Beauty last night. As you can see in the pictures below- he has a large (relative term) white spot on tip of his right fin. IAs far as I can tell the spot looks a little fuzzy when I try to look at it closely. He seems to be in perfect health, otherwise- he eats welland is still very active. Anyone have any idea what it is and how to treat it?

I tried to get the best photo I could, but he is pretty quick and uses the fin to swim, making it move around even more.

 

Well, I just looked in the tank when I got home tonight and no more white spot on his fin...I have no idea what it was or where it went, but it is gone now.

 

well, that's good news!

 

Yea, agreed, but I still don't what it was...

 

Possibly Lymphocystis..
Did it look like this?