For maximum fry growth I try to raise them for their 1st week in a 1 gallon container with just some water sprite and an air stone. A 30% water change is done every other day with aged treated water. They are fed twice each day. 1 feeding is always live baby brine shrimp and a feeding of my high protein food. If you do not use either of these foods then you can use whatever flake foods you are using and grind it between your fingers in to a powder.
After a week to 10 days I move the hatch in to a 2 & a 1/2 gallon tank or a 5 & a 1/2 gallon tank and continue the feeding program.
Any questions, feel free to ask in the comments or you can email me. If you are in the USA and interested in buying the high protein foods I use and sell, it is available on ebay under seller greyd or you can save money and buy direct for just $12.00 for a 4 ounce jar. This includes 1st class shipping And a Free small sample bag of the flake foods I mix up and feed my fish.
email me at greydmail