Wow.. i always thought blue tangs were peaceful... i've had this guy since he was the smallest size fish stores would sell them... Now he's tripled his size... he grows faster than all the other fish because he eats like a pig. In fact he used to get picked on by my flame angel before i took him out... he's never bothered any of the other fish before but now that he's gotten bigger, he's bullying all my other fish around... he chases my onyx clown, my yellow tang(twice his size), and my new mystery wrasse. Everytime my mystery wrasse comes out from the rock work, the blue tang would dart across the tank just to scare him back in. All the websites i've read indicate that the hippo tang is supposed to be a peaceful inhabitant. Anyone else have aggressive blue tangs or did i just end up with a bad egg?