I have about 500 managuense fry that started free swimming about 3 days ago.Yolk sacs are gone.What should I feed the fry?I used to use TetraMins Baby E fry food,but I just found out it was discontinued in 2001.(Ive been out of the hobby for a while) I can't get the fry to eat.I have tried Cyclop-Eze frozen food and ground up Tetra food sticks and the don't like either.they spit it right out after mouthing it.i don't want to go through the hassle of newly hatched brine shrimp.Any suggestions??????????