What is your one small fish? Is it a grazer or should it be fed more often? Don't want to starve the little guy...

We feed once a day frozen about 10pm, a little before lights out. Sometimes we feed the corals, but not often. A couple of the tanks have an auto feeder, so get fed more often. The main display with the anthias and tangs/angels get 3 auto feedings throughout the day and the fish only gets 1 additional.