Unrelated but speaking on the Biology major in college. I am a Junior, about to be senior biology major, haven't even discussed corals unfortunately! However, work hard and you'll do fine!I think it's a pagoda cup. Once it got in tank and adapted it greened up and the tentacles are beige. I bought it thinking I knew what it was. Coral can be dangerous and downright deadly so I don't collect soft corals, just to be safe.. I enjoy the Stony ones, beautiful, safer. Yet, if you don't know what it is, don't get it is kind of the rule even with Stony coral.. thanks for the time. ..fixing to take biology in college, the coral is incentive.. take care.