i was feeding them pellets only they would eat it then spit it back out, and some didnt seem to care for it, so they're on flakes now. and i tried not feeding them yesterday, and they stressed out really bad. One even continually hunts the bottom of the tank for extra food.
Bettas will ALWAYS act like they're hungry. Don't let them fool you. They have no sense of a full tummy. They'll completely con you into feeding them even when they'd be ill from one more bite. It's normal for them to hunt around for food. It's what they'd do if they were in the wild.