i know i just sound like another member of the herd telling you the same stuff.. but i'll tell you what has worked for me.
keep the temp above 84 degrees.. 86-87 is ideal. add aquarium salt to kill the ich. i believe it's or 1 tblp to 5 gallons? it's kinda fuzzy these days, i just put a cup of salt in a 100 gallon tank.
feed them small food at first, and twice a day.. but don't feed them too much. if their bellies get bigger than they are you've fed them too much. one cube of bloodworms, or brine shrimp for every 2 fish. once or twice a day.. feeding them more often than that can cause growth spurts that can endanger their health. and also leaves extra food in the tank which will poison the tank and kill your fish.
power feeding fry to make them grow quicker is a death sentence.. please do not do this.
there is no compelling reason to feed live food unless you like watching animals kill other animals. frozen already dead food is safer, and it's my theory that not feeding live food may reduce the aggression level in the tank and keep your fish from killing each other or eating each other.