Is this a carnation coral? It's a photo from many years ago, and I no longer have the coral unfortunately. It met the eventual demise of falling behind the rocks, and for the life of me I could not find it when I looked. It was sold to me as an "anus coral" (sorry moderators, anatomical!) because it sucked into its stalk at night, leaving a puckered bump. No arms or polyps were visible when it did this. I doubt this is even a common name for it though - probably just a sales name. It might be non-photosynthetic, but it did tend to open during the day. It also did not survive getting lost in the darker areas at the base of the rocks. Any ideas what it could be? The LFS received one shipment of them, and the LFS is no longer around. They were all white bases with black or dark brown polyps. I'd love to find another one day if I could just identify it. A carnation coral of some type is my best guess.Thanks in advance!