Interesting... Mine eats anything. Massivore, krill cut fish... I'm gonna miss him he's shipping out ThursdayI tried giving them frozen krill for a while and no luck, they would only take shrimp and earthworms. I tried frozen krill again yesterday as I had some still in the freezer and they went nuts for it yesterday. I don't know what changed as I didn't starve them at all but I am not going to complain!