Centropyge nahackyi.
Vitually unobtainable due to restricted location. Also the waikiki aquarium caught seven, I believe and all but one died
. My other favorite fish is Genicanthus personatus which the waikiki aquarium has and they also captive bred once. You can also buy a pair of these fish in Japan for only $30,000.
Centropyge nahackyi
Genicanthus personatus
