Thanks Lynn, I saw your post.
Slakker,
My blender mix has phyto in it as well as reef plus. Also, clams, shrimp, squid, sea vegies, krill, brine shrimp, whiting, octopus and garlic. Who knows what the clam liked best, maybe it was just the phyto and the reef plus that did the trick. I know they are filter feeders but I never saw one eject a live brine shrimp. They need a protein rich environment. If you are planning on keeping him in a reef only tank, it won't last long.