My question is strictly for feeding coral frags. I run a 12 gallon system with about 10 different frags in it. (frogspawn, duncan, torch, yumas, ricoridea, 2 monti's, porciplla (sp), rough ridge and a marble madness) These frags are always hungry. I have been feeding them every other day Reef nutrition products, Phyto, Oyster, Roti's. Am I over feeding? I have no water quality changes "YET". Or should I move to every day and is it better to feed at night or day time?