Volitan and Harlequin Tusk eating

[lionfaceman]

Hey everyone I am having a problem with my Volitan and Harlequin Tusk not eating the food i am supplying them. The Volitan has never had live fish for food has always eatin frozen but i can`t seem to get him to eat, he hasn`t even move from the spot from where i put him in the tank 5 days ago. Now the tusk is a different story. He wont touch the shimp i have been feeding him but he will go after the bristle worms that keep popping out of my live rock. Im not exactly to sure what to do to get these guys eating frozen food. Am i feeding the wrong food cuz i have asked at the stores and read up on what they eat but no luck,any suggestions would be awesome.

Thx