Lynn,
I think yours is actually a Acanthophyllia deshayesiana or Cynaria... they are alot bigger than scolymia... I was trying to figure out what they are earlier this year.. http://www.wamas.org/forums/index.php?show...;show=&st=0
http://www.advancedaquarist.com/issues/nov2003/invert.htm
that is old info but the best I have found yet...
I have a couple of them...