Blackwing Hatchetfish
Carnegiella marthae — Smallest hatchetfish. Dark marbled pattern. Strictly blackwater species — requires very soft, acidic water and a tightly covered tank (they jump). Surface dweller.
Care at a glance
| Scientific name | Carnegiella marthae |
|---|---|
| Type | schooling |
| Adult size | 1.4" |
| Minimum tank | 20 gal |
| Group size | 8+ |
| Temperament | peaceful |
| Temperature | 75-82°F |
| pH | 4.5-6.5 |
| GH | 1-5 |
| Diet | carnivore — surface insects |
| Swimming zone | top |
| Care level | moderate |
| Plant-safe | Yes |