One of my favorite fish. I have had two over the past ten years. One in a 150 for about 2-3 years until I took down the tank, and recently one in my 90g for just over a year now. Both we're very moderately aggressive with others by always trying to get between other fish and food, but never nipping at them or the corals. Both had pretty much the same personality - want to be the king fish on the reef, but not mean.
My first one ate nori, the one I have now doesn't touch it. Both ate pellets and flake.
Tank mates include fairy wrasses, anthias, firefish, basslets, blennies and gobis.