How about their tankmates like SPS, Ricordea, and Zoanthids?
<... Re Zoanthids: http://wetwebmedia.com/ca/cav1i1/blane-zoanthids/zoanthids.htm> Never have other corals been within 6″ of any polyp colony, and sweeper tentacles are not able to reach where I locate my star polyps. I understand most people have “trouble” keeping them from growing too much. Have any of you ever experienced what I have been regarding star polyp colonies?