Family: Cyprinidae
Gelius Barb — a Cyprinidae from South America. Reaches 3.8–5.6 cm; keep at 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.
A moderate-level species: mostly peaceful; some species nip fins; stable water matters more than fancy equipment.
Set the heater to 18–22 °C and avoid swings. pH 6–7, GH 5–19 dGH suit it.
Adults reach 3.8–5.6 cm; it is bottom-dwelling. Plan for at least 38 litres.
Omnivore; prepared foods with regular vegetable matter. It forages naturally over fine gravel and sand, so let some food reach the bottom.
Mostly peaceful; some species nip fins. Recommended tankmates: Similar-sized peaceful community fish — Similar size and water needs. Avoid Much smaller fish — May outcompete or bully tiny tankmates.
Comes from South America: clear streams and rivers over gravel. Expect moderate, well-oxygenated current and appreciates well-oxygenated water.
Not a noted jumper — a standard cover still keeps dust and spray in.
Egg-scatterer; no parental care. Males often slimmer and more colourful.