Black-winged Hatchetfish

Care requirements

Care level: Intermediate – Advanced.

Because it uses the upper part of the aquarium, leave enough surface space instead of crowding that part of the aquarium.

The listed lifespan is up to 7 years.

Water parameters

The temperature range for this fish is 20–28 °C. Compare it carefully with the aquarium target temperature instead of assuming every tropical community setup is suitable.

The pH range for this fish is 4–7. That points to acidic to neutral water, but stability is more important than sudden corrections.

The GH range for this fish is 2–12 dGH. That gives some flexibility, but sudden changes are usually more stressful than a stable value that is slightly imperfect.

Temperament and compatibility

As a peaceful top swimmer, Black-winged Hatchetfish is best kept with calm species that will not harass it or dominate the feeding area.

Because this fish uses the upper part of the aquarium, compatibility is easier when other fish are not all competing for the same swimming space.

Swimming zone and behavior

This fish uses the upper part of the aquarium, so leave enough surface space for movement and feeding.

Feeding

As an omnivore, Black-winged Hatchetfish should receive a varied diet rather than one repeated food type.

Before adding this fish

• Choose other fish with overlapping temperature needs.
• Keep pH stable within the listed range instead of making sudden corrections.
• Avoid aggressive or highly competitive fish.
• Offer a varied diet that matches this species.