Young fry should be kept at a temperature of about 74oF to 84oF and should be feed on a diet with a lot of brine shrimp in it. Once the fry are aged 4 weeks old you should split the males and females into two separate tanks as the males will try to fertilize the females and the male who does the most fertilizing could be the worst one of your whole stock and he will ruin your next generation. The fry should have slightly more light than the adults and should be separated from the adults straight after birth, as the adults will eat their fry.