Red Urchin

During the day, it will hide among the rocks, in crevices, or under plants in a sandy substrate. At night, it will emerge to graze on the algae present in or near its home. They generally move around the tank alone, but several of them could be housed in the same aquarium if it is large enough.

Common Name(s): Red Urchin, Fire Urchin, Rainbow Fire Urchin and False Fire Urchin
Scientific/Other Name(s) : Astropyga radiata
Care Level : Easy
Maximum Size:8"Minimum Tank Size:50 gallons
Reef Safe: Yes
Feeding Requirements:
Temperament / Behavior: Peaceful
Other Comments:
The Fire Urchin is called this because of its bright colours and the venomous stinging nature of its spines. They can cause serious pain if you are spiked by its spines.

During the day, it will hide among the rocks, in crevices, or under plants in a sandy substrate. At night, it will emerge to graze on the algae present in or near its home. They generally move around the tank alone, but several of them could be housed in the same aquarium if it is large enough to provide them with adequate food (algae) and shelter. It is sensitive to high levels of copper-based medications and it will not tolerate high nitrate levels. If it starts to lose a number of spines, it is often due to poor water conditions.