I feed my zoas and SPS Phytofeist live, Rotofeist and Marine Snow all mixed together once a week. Once the eye droper with the food in it hits the water every thing seems to respond to it even my clowns try to eat it and my serpant star even comes out. It is kind of neet to see how much activity it inlists. Also I just tried it the other day but on a collony of magicians I drop some New Life Spectrum pellets they closed up around it in a hurray and it sure looked like they aet it. At least when they opened back up it was gone. I think Zoas will really take anything that is the right size. We will see if it helps them grow any.