Powder Blue Tang Not Eating
I've got a 100 gallon saltwater tank with 150 lbs or rock. The tank has been up and running since 12/06. Water parameters are perfect. For the last 4 months, the tanks inhabitants have been 1 blue tang, 1 bi color psuedo, 1 true perc, and 1 scooter blenny along with a cleaner shrimp, a CBS and a bunch of hermits. I also have a bunch of corals.
I recently added a Powder Blue Tang. He is slightly larger than my blue tang and very healthy looking. He has been in the tank for a week now. The fish swims around and seems to be grazing on live rock. He also occassionally nips at the Nori I put in the tank (the blue tang loves it).
My problem is that he won't eat. I feed mysis shrimp and occasionally some krill but he is just not having it. While everyone else is scurrying about picking at the food, the Powder Blue just swims by it. I don't get it.
What should I feed him? I don't see any signs of ick or any other problems with this fish. His colors are good and he is swimming all over the place, he just won't eat. Any tips?