Dark Australian Rainbowfish
Melanotaenia nigrans — Darker-coloured Australian rainbow tolerating cool water; underrated peaceful species.
Care at a glance
| Scientific name | Melanotaenia nigrans |
|---|---|
| Type | schooling |
| Adult size | 3.5" |
| Minimum tank | 30 gal |
| Group size | 6+ |
| Temperament | peaceful |
| Temperature | 59-79°F |
| pH | 6.5-8.0 |
| GH | 5-15 |
| Diet | Flake, micro pellets, frozen |
| Swimming zone | all |
| Care level | easy |
| Plant-safe | Yes |