depends, my monsters i feed maybe once a day or every other day. but i feed a good portion. i used to feed 3 times a day til i realized how bad it was lol. but damn they grew like weeds. my piranhas used to feed like 5 times daily. now jus 1 good portion a day or every other day. oscars is like twice daily.
I put twice a day, between all my tanks I feed fish twice a day... but not the same ones. Most of my fish get a every other day, or once a day feeding.
I feed all my tanks twice a day, pellets in the mornings and fresh or frozen at around 6 or 7 at night. Sometimes I feed three times a day, if counting the algae wafers or bottom feeder tablets I drop in twice a week.