I would have to say I know a little bit about marine fish, but was wondering what you all thought was the most agressive fish and the most agressive wrasse. Im not a big trigger fan though and my blue line grouper is meaner than any undulated/clown trigger anyways. My lunar wrasse is all that aggressive there has to be a meaner one. There must be something meaner than my blue line, or is that it. I have kept alot of fish and so far hes it. Maybe there is something I dont know about? I know every fish is different dont come at me with that. All this being said I take very good care of my fish all are healthy and fed well. Thanks