Electric Blue Rainbowfish
Melanotaenia praecox — The most popular dwarf rainbowfish; vivid neon-blue body with red fins. Already partially listed — confirming full entry.
Care at a glance
| Scientific name | Melanotaenia praecox |
|---|---|
| Type | schooling |
| Adult size | 2.5" |
| Minimum tank | 20 gal |
| Group size | 6+ |
| Temperament | peaceful |
| Temperature | 73-82°F |
| pH | 6.5-8.0 |
| GH | 8-20 |
| Diet | Flake, micro pellets, frozen |
| Swimming zone | all |
| Care level | easy |
| Plant-safe | Yes |