The Hydnophora Horn Coral is a SPS coral. It is a more fleshy type of SPS coral and it has polyps that can extend outwards.

Fun Fact: Its behavior is often labeled very aggressive; it will kill most other corals that come in close proximity with it. During night time, they are known to extend stinging tentacles up to an inch out.

This coral requires high light level combined with a medium water movement.