I hear they'll eat anything. They need a good balanced diet. Vegetables and Brine Shrimp, how much of each. Do I put one chunk of meat in there per fish. And Veggies do I chop up a little bit of a carrot or cucumber etc into little pieces and give it to them? What all do you feed yours? And how often do I need to feed 'em, if they get hungry and I'm not around will the attack and eat each other?