Common Hatchetfish

Updated August 6, 2019
Author: Mike - FishLore Admin
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The common hatchetfish gets to about 1.5 inches in size and likes to be kept in a school of 6 or more. A 20 gallon aquarium that is fully cycled with peaceful tank mates and lots of top level swimming space would be good to start with.

The will eat small insects, worms, flake food, thawed and live fish foods. You also need to have a good fitting hood (or lower the water level) when keeping hatchetfish.

Common Hatchetfish River Hatchetfish


Take your time when introducing them to your tank. Spend an hour or more doing a slow drip acclimation and feed them a couple of times per day and they will reward you with lots of activity.

Common Hatchetfish Common Hatchetfish

Common Hatchetfish Care

Scientific Name : Gasteropelecus sternicla

Common Names : River Hatchetfish

Care Level : Medium, slowly acclimate them to your tank.

Size : Up to 1.5 inches (3.5 cm)

pH : 6 - 7

Temperature : 73°F - 80°F (23°C - 27°C)

Water Hardness : 4° to 15° dH

Lifespan : 2 - 5 years

Origin / Habitat : South America, Amazon River, Peru and Venezuela - found in slow flowing creeks or swamps

Temperament / Behavior : Does well with other species, needs to be kept in groups of 6 or more

Breeding : No breeding info at this time.

Aquarium Size : 20 gallon or larger, needs to be kept in groups

Compatible Tank Mates : Many, given their peaceful nature.

Disease : Freshwater Fish Disease

Diet / Foods : Will eat flakes, live, thawed and freeze dried foods. In the wild they may jump out of the water to get small insects.

Tank Region : Top of the tank, surface dweller.

Gender : The females are larger than the males.

Similar Species : Marble Hatchetfish

Fish Lore Forum : Hatchetfish Forum

Photo Credit : Photos copyright

Site References :

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