Gymnocypris przewalskii — a Cyprinidae from 中国, generally peaceful but predatory on small fish. Reaches 11.2–16.5 cm; young fish group; grown ones want space. 18–26 °C.
Care parameters
Water temperature
18–26 °C
pH
6.5–7.5
GH hardness
5–15 dGH
Adult length
11.2–16.5 cm
Minimum tank
327 L
Water layer
Active throughout the water column
Difficulty
Moderate
Temperament
Generally peaceful but predatory on small fish
Origin
中国
Species overview
Gymnocypris przewalskii is a Cyprinidae from 中国. Its home water is snowmelt: cool, fast and oxygen-saturated, with hot summers as the main threat. It uses the whole water column. Adults reach 11.2–16.5 cm. Young fish group; grown ones want space. Keep it cool, moving and oxygen-rich; summer temperatures above 24 °C are the real danger. Maintain 18–26 °C at pH 6.5–7.5. Undemanding once its core needs are met.
Native biotope
Habitat
Clear streams and rivers over gravel
Flow
Moderate, well-oxygenated current
Dissolved O₂
Appreciates well-oxygenated water
Aquascape & hardware
Substrate
Fine gravel and sand
Hardscape
Water-worn stones and driftwood
Plants
Hardy rooted plants along the margins
Temperament, diet & tankmates
Schooling
Young fish group; grown ones want space
Diet
Omnivore leaning carnivorous — pellets plus fish and vegetable matter
Recommended tankmates
Cold-water catfish of similar bulk — Share the cool, current-rich regime
Avoid keeping with
Small fish — Will be eaten
Breeding & notes
Sexual dimorphism
Males often slimmer and more colourful
Breeding method
No routine aquarium breeding; simulate winter chill to condition