科: Characidae
Black Hifin Tetra（Gymnocorymbus ternetzi）はカラシン科に分類される淡水魚で、南米に分布する。成魚は約 2.7–4 cm、適水温 23–27 °C。
Gymnocorymbus ternetzi is a Characidae from South America. In the wild it prefers blackwater streams and flooded forest; in the aquarium it stays peaceful mid-water shoaler. Plan on 2.7–4 cm of adult fish at 23–27 °C. In a community tank it pairs well with Small Corydoras.
難易度：中級。Peaceful mid-water shoaler; confidence comes in numbers。
適水温 23–27 °C。23.0–27.0 °C typical for the family。Heater for stable tropical warmth。
成魚 2.7–4 cm 前後。Middle of the water columnのため 25 L 以上の水槽を推奨。
Small omnivore; quality flakes and small frozen foods。1日2回の少量給餌が理想的。
Peaceful mid-water shoaler; confidence comes in numbers；Groups of 8 minimum; more is visibly better。向いているのはSmall Corydoras — Share the lower water peacefully。Large or predatory fish — Tetras are snacksは不向き。
原産地は南米。Blackwater streams and flooded forestに生息。Still to gentle current。Moderate。
リスクは低いが、ふたがあると安心。
Typical egg-scattering characin; adults eat the eggs。Subtle; females fuller-bodied。