Weird Things In My Tank

Tubastraea Faulkneri, or more commonly known as "Orange Cup or Sun Coral". These corals have no zooxanthellae so they rely totally on captured food for survival and are generally regarded as ahermatypic or non-reef building. These corals usually open at night in response to time when planktonic food sources are at their highest and are usually found upside-down at the entrance of caves or overhangs in nutrient rich water where food will be abundant.