Genus
Common name: Red Knob Sea Star
Scientific name: Ophidiaster
Ophidiaster is a genus of sea stars commonly found in the Indo-Pacific region, particularly known for the Red Knob Sea Star (Ophidiaster ophidianus). These sea stars are popular in the reefkeeping hobby for their striking appearance, with bright red tubercles on their arms. They are generally peaceful and can be kept with a variety of tank mates. Hobbyists should provide them with a well-established aquarium with plenty of live rock for grazing and hiding. It's important to note that they require stable water conditions and should not be introduced to a new tank.