Yup, just keep offering it different foods, it might not go for it right away, but soon it'll tie you together with food, and soon hopefully will check out anything you put in the tank,,,I think if it gets hungry enuf, it'll try anything you offer. The mysis is a good idea/food to give,,,experiment with the different kinds of frozen cube food, some brands offer a line of a few different kinds of food.
When i had my hawk, it ate just about anything, when it saw the other fish go crazy at feeding time,,,,so it just learned to jump in and go for the food, whatever it was,,,
Good luck!
