Flower Sea Urchin (Toxopneustes pileolus)
The Flower Sea Urchin, scientifically known as Toxopneustes pileolus, is a striking marine invertebrate commonly found in temperate and subtropical ocean regions. It features a vibrant, colorful body with delicate, flower-like projections that give it its name. This species is known for its slow movement and unique appearance, making it a popular choice among marine aquarium enthusiasts.
Key Features
- Scientific name: Toxopneustes pileolus
- Common name: Flower Sea Urchin
- Native habitat: Temperate and subtropical oceans
- Appearance: Bright, colorful body with floral projections
- Behavior: Slow-moving, generally peaceful
| Feature | Detail |
|---|---|
| Size | Up to 10 cm in diameter |
| Lifespan | Up to 10 years in captivity |
| Water Temperature | 18–24°C |
| Water pH | 7.8–8.4 |
FAQ
What is the ideal water temperature for keeping a Flower Sea Urchin?
The ideal water temperature for a Flower Sea Urchin is between 18°C and 24°C.
Is the Flower Sea Urchin safe to keep with other marine species?
The Flower Sea Urchin is generally peaceful and can coexist with other non-aggressive marine species in a well-maintained tank.
How long does a Flower Sea Urchin typically live in captivity?
With proper care, a Flower Sea Urchin can live up to 10 years in captivity.



Faith Rees –
The Flower Sea Urchin is a beautiful addition to my marine tank. Its colorful appearance stands out and it seems to be healthy and active. I’ve kept it for six months and it’s thriving in the 22°C water temperature. Easy to maintain and doesn’t cause any issues with other tank inhabitants.
Adrian Cornish –
I was initially hesitant about adding a sea urchin to my tank, but it has become a highlight. The flower-like projections are very eye-catching. I’ve noticed it doesn’t eat much, but it stays active and appears content in the corner of the tank.
Warren McGrath –
Great quality and arrived in perfect condition. The urchin is active and shows no signs of stress. I’ve maintained stable water parameters and it’s adapted well. Would recommend to anyone looking for a unique and visually appealing marine species.