I seen a simular video on RC a little while back and they said that the other angel in the tank is also very hard to come by. Forget what its name was though.
That was an adult orang shoulder tang, it is actually light gray not blueThat would be the Abe's Angelfish.
Did anyone else notice that cool light blue tang with the orange marking? It was swimming right over his shoulder at about 1:25 into the vid. Anyone know what that one is called?