Invertebrate:
Olive nerite
Vitta usnea
formerly Neritina reclivata
Freshwater
Brackish
Marine
Adult size2.5–3 cm
Tank20 L or more
Care levelBeginner
Will it fit your tank?
Compare it with your tank's species, size, water tests and country.
Water
Temperature20–28 °C
5 °C35 °C
pH7.0–8.5
49
General hardness5–20 dGH
0 dGH35 dGH
Carbonate hardness5–12 dKH
0 dKH20 dKH
- Comfortable
- Acceptable, less ideal
- Tolerated, not comfortable
Space
Tank volume20 L
Needs 19–20 L, depending on how it is kept
Tank length30 cm
- The space it needs, from the least to the most generous
- Recommended
Character and care
- TemperamentPeaceful
- Social lifeIn groups
- DietHerbivore
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