Family: Cyprinidae
Coreius Zeni — a Cyprinidae from Yangtze basin, China, peaceful toward equals, merciless to fry. Reaches 11.2–16.5 cm; juveniles shoal; adults keep to pairs or singles. 18–26 °C.
A Cyprinidae species native to Yangtze basin, China: Coreius guichenoti lives active throughout the water column over gravel. Peaceful toward equals, merciless to fry. Adults reach 11.2–16.5 cm. It is one of the aquarium-kept Coreius species we profile, alongside Coreius heterodon, Coreius septentrionalis.
Difficulty: moderate. Peaceful toward equals, merciless to fry. Juveniles shoal; adults keep to pairs or singles.
Hold 18–26 °C and keep it stable — 18–26 °C typical for the family. Room temperature to heated, depending on origin.
Expect 11.2–16.5 cm as an adult, living active throughout the water column. A 327 L tank or larger gives it room.
Hearty feeder; alternate protein and vegetable meals. It forages naturally over fine gravel and sand, so let some food reach the bottom.
Yes, with care. Peaceful toward equals, merciless to fry — pair it with Other large temperate cyprinids — Match size, temperature and diet and skip Warm-water tropicals — Need different temperatures.
Native to Yangtze basin, China, where it lives in clear streams and rivers over gravel. Moderate, well-oxygenated current; Appreciates well-oxygenated water.
Jumping is not a known issue; cover the tank anyway during water changes.
Breeds seasonally in cool running water; aquarium success is rare. Males often slimmer and more colourful.