The tang is being very aggressive with the other fish in the tank to where he has killed fish! The fish left are 2 small 1" PJ cardinals, a yellow coris wrasse(2") and a starry blenny(3+"). Is there a way to stop his behavior? I've not encountered this before in my years. I could put it in another system with a mature purple tang and a yellow tang a little larger than the culprit tang. If I did this, would the fighting and bullying continue? The tank I could put it in has some peaceful fish (anthia, mandarin, etc) so I really do not want to chance it. I could sell it but I wouldn't want to transfer a "problem" fish.


