My blue/red mandy took to mysis one day that she was following the purple tang around: she had a thing for him. When he ate it, she experimented---bingo! After over 200.00 sustaining her on bought pods after a tank crash, and setting up with a 20g refugium, she now eats mysis and various other things that float past her. A healthy, greedy fish will ultimately be more likely to experiment. When you're desperate to get them to do it, are they going to cooperate? Not so likely!