i'll attest as well. my green brittle is the most interesting thing in my tank. and surely drives visitors nuts when they see it eat from my hand.
i've been told as well, that they must be target fed often as they get larger, or they'll nab a fish.
i feed my fish homemade mush every three days, but i feed my star every other day with the same homemade mush. i feed shrimp pellets on the off days. just one pellet. so he gets fed every day.
and it's quite fun to watch him come out as soon as he senses food in the water. he'll come from whereever he is hiding and curl up around the food right out of my hand. he's not shy at all.