Corals won't eat phytofeast. Phyto will feed the micro fauna in your tank (things like pods and worms etc) which those in turn will feed your corals from propagating eating and defecating and living/dieing . Corals are more meat eaters and phyto is for vegetarians is the easiest way to explain it.
Also most, not all but most zoas and palys won't eat things like mysis. This food is way to large for most of them and it won't trigger a feeding response. I have had best luck feeding Zs and Ps a powder by Fauna Marin Zoanthid and Acan powder. It is pretty amazing stuff and I have been using several of their products for a while now with really good results. Here is a link to the specific food. I have been feeding my chalices the LPS pellets with amazing results as well. My sps goes nuts when the zoa/acan powder hit the water as well, but I haven't tried the sps specific food yet.
Fauna Marin Ultra Zoa 100ml :: Coral foods :: Fauna Foods :: Fauna Marin :: Cherry Corals
Reef Koi sells a trial size of the stuff for like 8$ if you want to get a small one to try out it won't kill the old back account.