Help with Yellow Tang

[Tink]

I'm in the process of trying to save a yellow tang I picked up. He seems in pretty good shape besides needing a LOT of fattening up. I have him in my sump atm for easy observation and removal if need be. Today I noticed a brown splinter looking protrusion on his left side. I did my best to get a picture of it, and here is what I came up with:

 

 

 

 

Any idea what it could be? Should I attempt to manually remove it? It looks just like a splinter in person, slightly sharp lookindefinitelyinetly sticking out from the skin.

 

Thanks

Edited February 12, 2012 by Tink

[tightline]

imo i would leave it trying to remove may do more harm i should work loose