Marbled hatchetfish

A surface fish with a deep keel and wing-like fins. It jumps when startled, so a tight lid is not optional.

Marbled hatchetfish, side view

Care at a glance

Minimum tank20 gallons (76 L)
Temperature73–81°F (23–27°C)
pH5.5–7.0
How manyKeep at least 6 together
Adult size1.4 in (3.6 cm)
TemperamentPeaceful
Where it livesNear the top
TypeFish

Things to know

  • It jumps. Keep a tight-fitting lid on the tank.

Good tank mates

Possible with care

Do not mix with

Open any pairing to see the reason.

Tank sizes that fit