Hi Mike, I feed my system once a week with reefroids.I don't think that corals need to eat alot unless they are the non photosynthetic type.Lights plays a important part too. I do auto dose the 3 major elements everyday(Alk,Cal & Mag) but i manual dose Red Sea trace color ABCD & Reef Energy A&B once a week. I do get my fair share of coral death in the begining but patience and stability is key.This is what it looks like 1 year later. Sent from Singapore Reef Club mobile app