Cycloseris is very similar to other Plate corals we house in our Aquariums, but it IS definitely different as you will find out ...
Know the difference, and know how to recognize one plate coral from another one.
http://www.coralhub.info/cf/a-z/cycloseris/
Albert
PS I covered several species of Plate Corals in the Marine Reef Newsletter (the supplement to my Nano-Reef Aquariums book) including the self fragging Diaseris one.
Albert