Fry! Hard boil an egg and take half a pea sized amount of the YOLK (Yellow center) and put it in a cup with some tank water, stir it with a spoon until it dissolves a bit then inject the contents into the tank with a turkey baster or just pour the contents in and let them float to the bottom towards the fry. You can also hatch and feed them baby brine shrimp. I did that for a couple of days until they could be weened off live food. After a week I added more to their diet like crushed flakes, crushed baby gammarus (shrimp) and once mixed fragments of bloodworms with all that stuff. They love feeding time!