I'm going to get some massivore for mine. He gobbles down the little carnivore discs like freakin skittles. It's so fun to watch him try to find them though, blind little guy, lol. He will eat frozen bloodworms and shrimp pellets now. I like the idea of a variety diet... My other catfish, and oddly enough my pleco, have taken quite a liking to the carnivore. Gets them more excited than anything else i've fed them so far. I've even seen the pleco on occasion chase the bichir away from them so he can grab one.