Not many people have much luck, eating prepared, id reccomend mysis if you want a supplemental food. I read a huge article on mandarins the other day, the day I bought him, they LOVE the eggs you put on sushi you know the little orange ones. The kind the put in Masago. They are also very nutritious, because threy have all the nutrition of the egg in them. Not very expensive either. They also eat fresh hatched brine. (They will eat adult brine, but adult brine is not very nutrtious. Baby (48 hr old) brine still has egg yolk attached which is very nutritious)