My first search pulled up a band from Australia. I was thinking you’re jerking our chain. :) It’s saying they’re very easy to care for and they don’t need a lot of space. They’d make due with whatever you feed the rest of the mates.
More research. They will eat anything they can catch, including slow moving fish, but they have to be really slow. They will eat other starfish, snails, etc.
Okay at first I wasn’t sure if you were talking about a cookie or an animal. Now that I know it’s an animal, I do not have a good answer. If it was for a cookie, I would say OMNOMNOMNOM