Common Name: Dusky Narrow Hatchetfish
Description: Inhabits river channels where it can be seen swimming in shoals above sandy substrates
Category: Characins
Global Region: South America
Distribution: Ecuador, Venezuela, Peru, Brazil, Bolivia and Argentina
Genetic Line: Aquarium Strain
Year Acquired: 2025
Ordered them online. I have a group of 7 in a 75 gallon biotope. Larger tetras that will reach 6". Very active. Have a black spear like extension of their rear tail.
Video of aquarist's species: