Mine was a tang killer. He hated every tang i put in my 150. Yellow, sailfin, and I don't even remember what the other tang was. they fought constantly, and every time the tangs died and the foxface pranced around. In its defense, the yellow and sailfin were usually the instigators. The foxface and queen angel get into it occasionally, nothing like seeing a $120 fish fighting with a venomous fish. My foxface has been a warrior though, he has been covered in ick and quit eating once and beat that, only one left from the fish I started the 150 up with 4 years ago. I'm going to get a bicolor (figi) foxface when my 90 gallon cycles in the next month or two.