A LFS in AZ sold them before I moved here. They had them FS and also in a non photosynthetic display. They needed to target feed often to keep the polyps open. I considered buying one, but I don't see myself target feeding this thing multiple times a day.
According to the book Corals of the world, the ruby coral belongs in the sea fan family and is found through out the Mediterranean. They are not photosynthetic and must be target fed. I hope this helped.