I have had both (introduced at the same time) my flame lasted around 4 years before getting ill and croaking, the coral beauty used to be chased by him (he was a him) and now Mr flame has gone the coral beauty has become the jerk of the tank and chases fish like it used to be chased, I think it wants to be chased itself again and misses the flame angel chasing it, neither of them have ever taken any bites from my zoa's and my acan or the polyps on the sps apart from the kiss chase game they have been model fish, I wish I could replace the flame but a fish I bought 4 years ago for 45 pounds is now 145 pounds