Green Hydnophora Coral
The Hydnophora Coral, Hydnophora rigida, often referred to as Knob, Velvet Horn, or Branch Coral. Its behavior is often labeled very aggressive; it will kill most other corals that come in close proximity with it. It is important to provide plenty of room between itself and other corals.Also a SPS.
Approximate Size: 2inches to 3inches,md 3inches to5,Lg 5inch to 7inch
Diet: It will feed on micro-plankton or food designed for filter feeding invertebrates