Genus Gasteropelecus

 
 

Silver hatchetfish - It has the capability of "flying" out of an aquarium, so precautions should be taken.

 
 

River hatchetfish - The river hatchetfish is a schooling species best kept in groups of five or more that spends most of its time in the top-level of the water where it searches for food.

Order : Characiformes
Family : Gasteropelecidae
Genus : Gasteropelecus