Black Rock Urchin

The Black Rock Urchin is a hardy and active addition to your marine aquarium. Known for its striking deep black spines and rock-dwelling habits, this urchin helps control algae growth naturally, grazing on unwanted film algae and keeping your tank looking pristine. Ideal for reef-safe tanks, it is best kept in established systems with plenty of live rock to explore and graze.

Care Level: Easy – Moderate
Adult Size: 2–3 inches
Diet: Algae, biofilm, and detritus
Reef-Safe: Generally, yes – may occasionally move small invertebrates

Bring natural algae control and unique texture to your reef with the Black Rock Urchin!