Buuuzz, sorry Chucker. SPC is 100% correct. While true it is likely ahermatypic it does poorly in aquariums because it lacks zooxanthellae, not because it doesn't have a calcium based body. See:
aposymbiotic (a' -puh-sim-bee-ah'-tik) - describing corals that do not contain the mutualistic algae commonly known as zooxanthellae.
ahermatypic (ay'-her-mah-tip'-ik) - describing a type of coral that does not contribute substantially to building the matrix or calcareous framework of a coral reef; nonreef-building.
aposymbiotic (a' -puh-sim-bee-ah'-tik) - describing corals that do not contain the mutualistic algae commonly known as zooxanthellae.
ahermatypic (ay'-her-mah-tip'-ik) - describing a type of coral that does not contribute substantially to building the matrix or calcareous framework of a coral reef; nonreef-building.