Well I have such bad luck now. I just got the blond naso tang about 4 inch. He gets pick on by a 5 inch foxface the first day. Day two they pick on each other the naso return fire and its a constant cat and mouse game. Just now I see that the rabbit fish turns black like angry or irritation. But the naso keeps going on top of the foxface where the poisons spike are at... I'm scare that the foxface will kill the naso by poking my naso. Its gonna be a big hassle to remove the foxface. Have any one else have this problem with the foxface? Or maybe they are just messing with each other and no harm will be done?