I agree, from everything I have ever witnessed or read about SPS dont eat phytoplankton. Most clams over 3 inches dont eat phyto either as they are almost totally photosynthetic. Most corals will do well eating zooplankton if you can get it into small enough pieces for them to digest. Most everything else that you listed will eat phyto. Algagen makes a phyto that is superb imo and i have seen SPS polyps opening when I feed it. A total run down on the list would take forever lol