Pygmy Hatchetfish (Carnegiella myersi) Care Guide

The smallest hatchetfish species, reaching only 2.2 cm. A delicate surface-dwelling fish perfect for mature nano tanks. Translucent body with a faint dark lateral line.

Overview

Carnegiella myersi is a species in the family Gasteropelecidae. The smallest hatchetfish species, reaching only 2.2 cm. A delicate surface-dwelling fish perfect for mature nano tanks. Translucent body with a faint dark lateral line. Prefers dim lighting with floating plants and calm water conditions.

Taxonomy

Family: Gasteropelecidae
Genus: Carnegiella
Scientific name: Carnegiella myersi
Other names: Myers' Hatchetfish
Origin: South America, Peru, Bolivia

Habitat

Native to the upper Amazon basin of Peru, Brazil and Colombia. Inhabits shaded surface layers of slow forest streams. The smallest of the hatchetfishes, it requires soft, warm water and a securely covered tank as it readily jumps.

Tank requirements

Minimum tank volume: 30 L
Temperature: 24-28 °C
pH: 5-7
GH: 1-8 °dGH
Water flow: low
Adult size: 1.5-2.2 cm
Lifespan: 2-4 years
Recommended group size: ≥ 8
Difficulty: intermediate

Diet

Classified as omnivore. Recommended feeding frequency: 2x daily. In captivity, offer a varied diet appropriate to the species — quality prepared foods supplemented with frozen or live items of suitable size.

Compatibility

Temperament: peaceful
Swimming level: top
Compatible tank mates: Ember Tetra, Chili Rasbora, Pygmy Corydoras, Cherry Shrimp
Avoid with: Betta, Angelfish, Any Large Fish

Breeding

Breeding strategy: egg-scatterer
Breeding difficulty: advanced