I fed my first RTC chicken livers, and he grew FAST!! (Not like they don't grow fast anyway). One night he regurged while I was away and the water quality killed him (R.I.P. Waldo!!)... My new "little guy" has been getting bloodworms, but after reading this thread I'm thinking maybe shrimp? Anything good for color... growth is not that important to me... I have 20 years to watch him eat me out of house and home.