Thanks for the info on the black leopard wrasse Mike, but to be honest, we have gone the "natural predator" route with these pests and will be sticking with good old fashion QT for all new additions as well as the month+ long levamisole treatment protocol on our existing acro livestock (which includes leaving the main tank barren of acros for the duration). Although also having the "reported" natural predators can't hurt
, as long as one's tank can support them normally (leopard wrasses are not for everyone).