科: Characidae
Black phantom tetra（Hyphessobrycon megalopterus）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 22–28 °C。
Hyphessobrycon megalopterus is a Characidae from South America. In the wild it prefers blackwater streams and flooded forest; in the aquarium it stays gentle, slightly skittish when kept too few. Plan on 2.7–4 cm of adult fish at 22–28 °C. Related profiles: Hyphessobrycon amandae, Hyphessobrycon herbertaxelrodi, Hyphessobrycon eques.
中級向き。水質の安定が重要。Gentle, slightly skittish when kept too few。Schools tightly; never keep below 6。
22–28 °C が目安。急変を避け、Heater for stable tropical warmth。
成魚は約 2.7–4 cm。Bottom-dwelling。最小 25 L の水槽。
Mid-water omnivore; colour foods keep the red honest。1日2回の少量給餌が理想的。
Gentle, slightly skittish when kept too few。混泳の相手：Other small peaceful tetras and rasboras — Form a mixed, calm mid-water mass。Single-species isolation — A lone tetra is a stressed tetraは避ける。
南米原産。Blackwater streams and flooded forest、Still to gentle current。
飛び出しの傾向は低い。標準のふたでOK。
Egg-scatterer over fine plants; no parental care。Subtle; females fuller-bodied。