Invertebrate:
Collector urchin
Tripneustes gratilla
Marine
Adult diameter10–15 cm
Tank300 L or more
Care levelBeginner
Will it fit your tank?
Compare it with your tank's species, size, water tests and country.
Water
Temperature24–28 °C
5 °C35 °C
pH8.1–8.4
49
Salinity30.5–34.5 ppt
0 ppt40 ppt
- Comfortable
- Acceptable, less ideal
- Tolerated, not comfortable
Space
Tank volume300 L
Needs 76–400 L, depending on how it is kept
- The space it needs, from the least to the most generous
- Recommended
Character and care
- TemperamentPeaceful
- DietHerbivore
- Reef safeWith caution
Legal rules
The least the law allows, by country: the water and space above are what the species needs. A tank is checked against its own country's rules.
Austria
2 rules
- Nitrite: up to 0.05 mg/L NO₂
- Nitrate: up to 5 mg/L NO₃