White spot on yellow tangs fin

[ScubaSteeve]

I noticed a white spot on his left fin it's a little hard to see in the pic

 

[HotRocks]

Most likely lympho.

https://www.reef2reef.com/threads/lymphocystis.257461/

Pretty large to be parasitic IMO.

 

[ScubaSteeve]

Could be thanks I'll try to get a better pic

 

[HotRocks]

Unless you think you are dealing with a skin fluke.