Your RES will prefer to feed when the light is low. The rest of them don't much seem to care, but even the minnows will be less active on top at noontime on a bluebird day.
I hand throw every day in the evening, unless it's pouring down rain. Sometimes on a cloudy day I'll give them a little extra at lunchtime.
I pellet trained my RES in a cage when they were little. Most of them are pellet hogs. Some of them will come out for the lunchtime bonus feed, but they're a lot more interested in the evening.
