日本白鲫 (Carassius cuvieri)

科: Cyprinidae

日本白鲫为鲤科鱼类，基本和平的群居鱼，原生分布于日本（后引入中国）。性情平和、食性杂，是混养缸里最省心的居民之一。成体约 36–52.8 cm，单养或小群均可，适宜水温 18–26 °C。稳水、换水、杂食，足矣。

饲养参数

水温: 18–26 °C
pH: 6–8
GH 硬度: 5–19 dGH
成体体长: 36–52.8 cm
最小缸体: 500 L
水层: Active throughout the water column
饲养难度: 中等
性情: Mostly peaceful community fish
产地: 日本（后引入中国）

物种概述

Carassius cuvieri, a member of the family Cyprinidae, comes from Japan (introduced to China), where it inhabits clear streams and rivers over gravel. Mostly peaceful community fish and accepts quality flakes, granules and frozen foods, it grows to 36–52.8 cm and adapts well to a properly set-up aquarium in the 18–26 °C range. Other Carassius species in our database include Carassius auratus, Carassius langsdorfii.

原生生境

栖息地: Clear streams and rivers over gravel
水流: Moderate, well-oxygenated current
溶氧: Appreciates well-oxygenated water

造景与硬件

底床: Fine gravel and sand
硬景观: Water-worn stones and driftwood
水草: Hardy rooted plants along the margins

性格食性与混养

群游性: Singly or in small groups depending on temperament
食性: Accepts quality flakes, granules and frozen foods
推荐混养: Robust schooling cyprinids — Add activity without conflict
避免混养: Much larger predators — Risk at night

繁殖与备注

雌雄差异: Males often slimmer and more colourful
繁殖方式: Egg-scatterer; no parental care

常见问题

日本白鲫好养吗？

中等难度，稳定水质比高端设备更关键。Mostly peaceful community fish，Singly or in small groups depending on temperament。

日本白鲫适合什么水温和水质？

保持 18–26 °C 并避免波动，pH 6–8、GH 5–19 dGH 即可。

日本白鲫能长多大，需要多大的缸？

成体约 36–52.8 cm；最小缸体 500 L，并留出活动空间。

日本白鲫吃什么？

Accepts quality flakes, granules and frozen foods。建议人工饲料搭配冷冻或活饵，保证多样性。

日本白鲫能和其他鱼混养吗？

Mostly peaceful community fish。推荐混养：Robust schooling cyprinids — Add activity without conflict。避免与Much larger predators — Risk at night同缸。

日本白鲫产自哪里？

原生于日本（后引入中国），栖息于Clear streams and rivers over gravel。Moderate, well-oxygenated current，Appreciates well-oxygenated water。

日本白鲫会跳缸吗？

无明显跳缸倾向，常规缸盖即可。

日本白鲫怎么繁殖？

人工环境下：Egg-scatterer; no parental care。Males often slimmer and more colourful。