The Umbrella Leather Green Polyp, Sarcophyton sp., is one of the easiest corals to keep in a home aquarium making it a perfect coral for beginner aquarists. Its inherent beauty makes it an attractive coral to own for experienced aquarists as well. It is a soft leather coral with a mushroom-like polyp that is a muted green color. At night, its tentacles will extend giving off a fascinating show to watch as they move with the current of the tank searching for food. The Umbrella Leather Green Polyp has alternate names of the Toadstool Mushroom Leather Coral, Trough Coral, or Sarcophyton Coral.