Shrimp, Snails, and Crabs
Rock Sea Urchin
Echinometra mathaei
Photo: Gustav Paulay, FLMNH · CC0 · Wikimedia Commons
Key facts
- Temperature24–27 °C
- pH8.1–8.4
- Adult size7 cm
- Difficulty★★☆☆☆
- TemperamentPeaceful
- WaterMarine
- Reef safeYes
Full profile
- Family
- Echinometridae
- Origin
- Indo-Pacific and Red Sea
- Size
- 5 – 7 cm
- Temperature
- 24 – 27°C
- pH
- 8.1 – 8.4
- Salinity
- 1.023 – 1.025
- Difficulty
- ★★☆☆☆
- Water type
- marine
- Behavior
- Pacific
- Diet
- herbivore (algae)
- Reproduction
- releases gametes
- Reef Safe
- ✅ Yes
Notes: A sea urchin with short, pink spines that burrows into rocks. A good algae eater.
