Least Killifish
Heterandria formosa — One of the world's smallest fish; a tiny peaceful livebearer for nano tanks.
Care at a glance
| Scientific name | Heterandria formosa |
|---|---|
| Type | livebearer |
| Adult size | 0.8" |
| Minimum tank | 5 gal |
| Group size | 3+ |
| Temperament | peaceful |
| Temperature | 68-82°F |
| pH | 7.0-8.0 |
| GH | 8-20 |
| Diet | Micro foods, biofilm |
| Swimming zone | all |
| Care level | easy |
| Plant-safe | Yes |