An alternative is to feed several times a day. What matters is the amount we feed. One method to determine the right amount is to feed until your fish slow down their consumption. At this point the amount of food you used should be sufficient for the entire day. It is up to you to either feed this amount all at once or in small quantities throughout the day.
Fish eat, or better said nibble, all the time.
A pinch of your set amount of food throughout the day is probably more accurate to a natural environment. But with our busy life styles feeding once a day is no problem. You should try to do this at the same time every day. Remember to adjust the amount of food when adding fish to your tank or changing food brands. Instead of pouring more food in the tank, spread it out to ensure everyone eats.