Pygmy Hatchetfish Care Guide
Carnegiella myersi · Freshwater Fish
What Pygmy Hatchetfish look like
The Pygmy Hatchetfish (Carnegiella myersi) exhibits a diminutive, laterally compressed body that reaches a maximum adult size of approximately 1.5 inches (3.8 cm), making it one of the smallest members of the hatchetfish family. Its most distinctive feature is the extreme deep-keeled chest, which gives it a characteristic hatchet shape, allowing for efficient surface gliding. The body is translucent silver-green, providing effective camouflage in its natural habitat. Sexual dimorphism is subtle, with males typically displaying slightly more elongated fins than females. The species possesses large, well-developed pectoral fins that facilitate its unique gliding behavior, and its dorsal fin is small and positioned far back on the body. Additionally, the Pygmy Hatchetfish features a well-defined lateral line system, aiding in its sensory perception in the water column.
Behavior & temperament
Pygmy Hatchetfish are primarily pelagic and exhibit a social behavior characterized by small groups, although they are not obligate schoolers. They prefer to dwell near the surface of the water, often gliding and leaping to evade predators. Their breeding behavior involves egg scattering, where females release eggs into the water column, allowing them to drift and settle among aquatic vegetation. In terms of temperament, these fish are generally peaceful and exhibit low aggression levels, making them suitable for community tanks with similarly sized species.
Diet & feeding
In the wild, the Pygmy Hatchetfish feeds on small invertebrates and zooplankton, reflecting its omnivorous diet. In captivity, it thrives on a varied diet that includes high-quality flake food, micro-pellets, and live or frozen foods such as daphnia and brine shrimp to ensure optimal health and coloration.
Behind the name
Carnegiella (named in honor of Andrew Carnegie); myersi (after the American ichthyologist, Dr. Carl H. Myers).
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Pygmy Hatchetfish?
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