Shrimp, Snails, and Crabs
Harvester Sea Urchin
Tripneustes gratilla
Photo: Philippe Bourjon · CC BY-SA 3.0 · Wikimedia Commons
Key facts
- Temperature24–27 °C
- pH8.1–8.4
- Adult size15 cm
- Difficulty★★☆☆☆
- TemperamentPeaceful
- WaterMarine
- Reef safeWith caution
Full profile
- Family
- Toxopneustidae
- Origin
- Indo-Pacific
- Size
- 10 – 15 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
- ⚠️ Use with caution (may knock over loose corals)
Notes: It uses shells and debris as camouflage. A voracious algae eater in medium and large aquariums.
