Is this flukes on a sailfin?

[Calebb8133]

I attached a pic of my sailfin Tang. I noticed this morning he has a few "blurry" spots on his top fin not sure if this is flukes or something else. He is acting relatively normal. Alittle more shy when I am not around the tank but not to out of the ordinary. Still eating but he changes his share of color a decent amount. I have a QT I can put him in and treat him if need be. Plz let me know what u guys think all other fish and the nem r ok. I can post exact parameters if u guys want that. Thx

 

[vetteguy53081]

Best way to find out is to give the tang a freshwater bath in a clean bucket with water of the same temperature for about 5 mins or if fish appears distressed.
If flukes are present, They will fall off tang and look like sesame seeds on the bottom. If not, you've eliminated the possibility of flukes.

 

[Big G]

+1 ^^^ This exactly