Family: Cyprinidae
Ginbuna — a Cyprinidae from Japan, calm, undemanding and well-suited to community life. Reaches 36–52.8 cm; small groups recommended. 18–26 °C.
Carassius langsdorfii is a Cyprinidae from Japan. In the wild it prefers clear streams and rivers over gravel; in the aquarium it stays calm, undemanding and well-suited to community life. Plan on 36–52.8 cm of adult fish at 18–26 °C. Related profiles: Carassius auratus, Carassius cuvieri.
A moderate-level species: calm, undemanding and well-suited to community life; stable water matters more than fancy equipment.
Hold 18–26 °C and keep it stable — 18–26 °C typical for the family. Room temperature to heated, depending on origin.
Expect 36–52.8 cm as an adult, living active throughout the water column. A 500 L tank or larger gives it room.
Unfussy omnivore; varied diet keeps condition. It forages naturally over fine gravel and sand, so let some food reach the bottom.
Yes, with care. Calm, undemanding and well-suited to community life — pair it with Robust schooling cyprinids — Add activity without conflict and skip Much larger predators — Risk at night.
Native to Japan, 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.
In the aquarium: spawns freely; remove parents to save the eggs. Males often slimmer and more colourful.