|Latin name||Heterocentrotus mammillatus|
|Common name||Pencil urchin|
|Family||Echinoidea - Heterocentrotus|
|Origin||East Indian Ocean|
|Max length||30 cm (11.8")|
As aquarium fish
This species is nocturnal and therefore the most active when the light is dimmed or turned off.
This species needs good hiding places, for example, between live rocks.
Family description (Echinoidea)
Sea urchins are often used to keep various algae at bay.
They are very effective algae eaters, and will eat anything from coralline algae to green hair algae.
Sea urchins must not be kept in an aquarium with few algae, as they may starve to death.
Sea urchins should be acclimatized slowly, due to sensitivity towards changes in salinity.
References and further reading
Ronald L. Shimek. 2004. Marine Invertebrates (PocketExpert Guide) - TFH Publications / Microcosm Ltd. - (English)
Ronald L. Shimek. 2003. Sea Urchins, A Testy Subject - Reefkeeping Magazine - (English)
Bob Fenner. Some Spines Now! Sea Urchins (and Sand Dollars), the Echinoids, Pt. 1, Pt. 2 - Wet Web Media - (English)
|nocturnal night, herbivore, algae eater|