Yellow tang help!

[Villareefer]

Just noticed a dark mark on the side of my yellow tang that wasn’t there earlier. I added a foxface this morning could it have touched the sting?

 

[Wallace11]

Looks like a superficial bite mark. My Starry Blenny has done this to my Fox Face (see photo) - heals up in a few days. I don't think your Fox Face is the culprit, but his addition may have made others in the tank a bit more territorial. Curious to see what others think.

 

[Villareefer]

Looks like a superficial bite mark. My Starry Blenny has done this to my Fox Face (see photo) - heals up in a few days. I don't think your Fox Face is the culprit, but his addition may have made others in the tank a bit more territorial. Curious to see what others think.

Yes looks similar, thanks for the reply I’m on lookout now to see if I can spot the culprit!