Oh - I forgot to mention. The blennies all looked like they had swallowed marbles (huge extended bellies). I had once wondered if my lawnmower blenny was ill because he was like that -- now I know -- he was just fine. He passed away after 4 years earlier this year.
One of the coolest fish for personality I've ever had in one my tanks. I'm not sure what their normal lifespan is but I suspect that it is not as long-lived as other fish.
And the tangs -- fat, fat, fat. As wide as several inches in some cases. Take it from the tang police: you should never
ever see a pinched in belly on a tang.