Hmmm...you sure it's not this???
The Turbinaria Ruffled Ridge Coral is small polyp stony (SPS) coral. Other Turbinaria species may be referred to as Pagoda, Turban, Cup, Vase, Bowl, or Scroll Corals. The genus name, Turbinaria, is derived from the Greek word turbinatus (cone-shaped) because it usually grows in a conical or cup shape while living on the reef. It may also be found in the form of cups, ruffled ridges, plates, vases, or scrolls. It may grow horizontally or vertically. Although the Turbinaria Corals may be bright yellow, green, brown, gray, or cream, the Ruffled Ridge Coral is generally yellow to green. A number of species may extend their polyps during the day or night while in an aquarium.