Genus
Common name: Purple Sea Urchin
Scientific name: Strongylocentrotus
Strongylocentrotus is a genus of sea urchins commonly known as the Purple Sea Urchin and Red Sea Urchin. They are notable for their robust spines and are found in rocky subtidal ecosystems. In the aquarium, they can help control algae growth but may also disturb the substrate and rockwork. They are generally hardy and can adapt to a range of conditions, but care should be taken to ensure they do not damage more delicate corals or become entangled in equipment.