I have some Tubastrea which gets fed every night before the lights go off, (mysis and cyclopeeze) and, I feed everyhting else (corals) twice a week. I only have one fish, a sm canary wrasse, who doesn't eat just algae. It gets leftover mysis every night, and flakes occasionally. I feed the corals a lot now, because there isn't a significant amount of fish waste and leftovers to give them anything. Also, with no fish, I don't have to be to worried about overfeeding