Purple Short Spine Pincushion Urchins for Sale - Add a striking and easy-to-care-for addition to your cleanup crew? The Purple Short Spine Pincushion Urchin (Strongylocentrotus purpuratus) will scavenge over rock and substrate for bits of food and algae to eat while adding interest to your home aquarium.
Pincushion Urchins have oval or round bodies covered with hundreds of uniform spines. Though the spines are short, they are still sharp, and can puncture skin. 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.
Sea Urchins are approximately 2"-3" in diameter, with the spines extending possibly twice that distance, that can be found in a variety of saltwater habitats around the world. These creatures belong to the class Echinoidea in the phylum echinoderm which contains over 900 different species. Common colors include black and dull shades of green, olive, brown, purple, and red.