Curing aggression...?

[Go Lions!]

Hi everyone and thanks for your responses! To my amazement the diadema has mellowed out considerably. I basically doubled my live rock and re-arranged the ENTIRE tank just before letting him out. I was VERY disheartened when after about an hour of initial hopefullness, he was chasing the wrasse around the tank again, but this subsided a few hours later and both are tolerating each other now with the new abundance of LR. This has me hopefull, but needless to say, if I could do it all over again I certainly wouldn't have accumulated these fish in the order I did! (a lesson for everyone who didn't know)