I dose amino acids right before the lights go off, then feed after the lights have been off about an hour (if I'm still awake.) I feed pappone (minus the human growth hormone that is supposed to be in it.) It's a mixture of oysters, clams, shrimp, 3 types of algae, sugar, and I can't remember if there's other stuff. It's pureed very finely. It's more of a food for coral than fish though.