I'm gonna go with favia. ;p
If you mean the one above the Haddon's anemone, I got that from a friend who got it from a mutual friend who happens to be the lead aquariest at the National Aquarium in Baltimore. It came from one of the displays there. That's all I really know about it. My taxonomy is really not a major focus of mine. I just look at growth forms as a means of determining placement.
If you mean the big blob looking brain below the blueish -green turbinaria, I got that at a "frag" fest held by my local club (CMAS.)