Correct his tank is not large enough but I would think a 6' 150+ would work? Anyway, I hijacked and was in dreamland.
Bluezoo says min is a 50 gallon http://www.bluezooaquatics.com/productDetail.asp?did=1&pid=933&cid=290 which seems wrong for 9" fish
And of course the anampses wrasses eat copepods which a 50 gallon tank will not provide enough of. It is not just fish size that is relevant.
