Hatchetfish
Surface-schooling fish and excellent jumper; keep the aquarium tightly covered.
Planning your aquarium
The library starting point is 20+ US gallons. Plan for the approximate 2-inch adult size and the species' normal activity, not just its current shop size.
The library suggests a group of at least 6. Count every individual when estimating stocking and swimming room.
Mixed-species aquariums may need substantially more space. Tank length, adult behavior, filtration, and hiding spaces all matter.
Tank setup and behavior
- Include planting or cover without removing all open swimming space.
- Secure the lid and protect gaps around equipment and cables.
Surface-schooling fish and excellent jumper; keep the aquarium tightly covered.
Food and feeding
Food options: Floating flakes, Small insects, Frozen daphnia.
Use appropriately sized, complete staple foods and rotate suitable foods for variety. Feed modest portions and remove uneaten food.
Compatibility
The current rule-based checker does not list a dedicated pairing warning for this species. That does not mean every pairing is safe; review temperament, adult size, diet, habitat and water requirements.