Purple Urchins require a minimum tank volume 20 gallons to provide sufficient places to hide and feed.
| Category | Invertebrate |
| Care Level | Easy |
| Diet | Omnivore |
| Size | 8 Inches |
| Origin | Florida |
| Supplements |
Calcium |
| Water Condition | 72-78F, dkh 8-12, PH 8.1-8.4, sg 1.023-1.025 |
| Water Flow | Medium |
| Light | Medium |
| Reef Compatible | With Caution |
| Compatibility | See Chart |
The Purple Short Spine Pincushion Urchin 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. The Pincushion Urchin will hide among the rocks, in crevices, or under plants in a sandy substrate during the day and emerge to graze on the algae present in or near its home.
The Purple Short Spine Pincushion Urchin generally lives alone can exist in large aquariums with others. Its diet may need to be supplemented with dried seaweed.
Approximate Size: 1-1/4" to 2-1/4"