Family: Cyprinidae
Crossocheilus oblongus — a Cyprinidae from Southeast Asia. Reaches 12–17.6 cm; keep at 22–28 °C.
Crossocheilus oblongus is a Cyprinidae from Southeast Asia. In the wild it prefers clear streams and rivers over gravel; in the aquarium it stays mostly peaceful. Plan on 12–17.6 cm of adult fish at 22–28 °C. In a community tank it pairs well with Similar-sized peaceful community fish.
Difficulty: moderate. Mostly peaceful; some species nip fins. Shoaling; keep in groups of 6 or more.
Hold 22–28 °C and keep it stable — 22–28 °C curated husbandry range. Room temperature to heated, depending on origin.
Adults reach 12–17.6 cm; it is bottom-dwelling. Plan for at least 372 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; shoaling; keep in groups of 6 or more. Good company: Similar-sized peaceful community fish — Similar size and water needs. Keep away from Much smaller fish — May outcompete or bully tiny tankmates.
Native to Southeast Asia, 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.
Egg-scatterer; no parental care. Males often slimmer and more colourful.