Who's nipping at my 6-line?

[geno]

I noticed last night that my 6-line's tail fin has been nipped a good bit. Heck, I thought he was too fast for anything in the tank to catch him.

From the list below -- who do you think is doing the damage?
Large sailfin tang
Large yellow tang
Medium Niger trigger
Small Blue jaw trigger

The alpha male in the tank is the Sailfin followed by the YT -- my guess is it's the sailfin -- but not sure.

thanks,
-gene

 

[darren24]

I would vote triggers also. Six lines are usually the intimidators.

 

[james s_]

I would agree with you. I think the sailfin is probably the culprit. They can be a major pain sometimes. Of course the Niger could be the problem, not so much the blue throat.