科: Cyprinidae
Gelius Barb（Pethia gelius）はコイ科に分類される淡水魚で、南米に分布する。成魚は約 3.8–5.6 cm、適水温 18–22 °C。
Pethia gelius, a member of the family Cyprinidae, comes from South America, where it inhabits clear streams and rivers over gravel. Mostly peaceful; some species nip fins and omnivore; prepared foods with regular vegetable matter, it grows to 3.8–5.6 cm and adapts well to a properly set-up aquarium in the 18–22 °C range. Other Pethia species in our database include Pethia atra, Pethia conchonius, Pethia cumingii.
中級向き。水質の安定が重要。Mostly peaceful; some species nip fins。Shoaling; keep in groups of 6 or more。
18–22 °C が目安。急変を避け、Room temperature to heated, depending on origin。
成魚は約 3.8–5.6 cm。Bottom-dwelling。最小 38 L の水槽。
Omnivore; prepared foods with regular vegetable matter。Fine gravel and sand上で採餌する性質を活かし、沈む餌も与える。
Mostly peaceful; some species nip fins。混泳の相手：Similar-sized peaceful community fish — Similar size and water needs。Much smaller fish — May outcompete or bully tiny tankmatesは避ける。
南米原産。Clear streams and rivers over gravel、Moderate, well-oxygenated current。
飛び出しの傾向は低い。標準のふたでOK。
Egg-scatterer; no parental care。Males often slimmer and more colourful。