Saltcorner
By Bob Goemans
By Bob Goemans
.jpg "Brissus unicolor (Grooved Burrowing Urchin)")
Likely Reef Tank Suitable
Likely Fish-Only Tank Suitable
These urchins are in the Order Spatangoida and bury themselves in the substrate/sand and move through it, internally processing some of the sand and cleaning it of adhering matter such as diatoms, detritus and tiny invertebrate.
