北部日本青鳉 (Oryzias sakaizumii)

科: Adrianichthyidae

北部日本青鳉为青鳉科鱼类，性情平和，适合混养，原生分布于日本。性情平和、食性杂，是混养缸里最省心的居民之一。成体约 3–4.4 cm，建议小群饲养，适宜水温 18–25 °C。稳水、换水、杂食，足矣。

饲养参数

水温: 18–25 °C
pH: 7–8
GH 硬度: 5–15 dGH
成体体长: 3–4.4 cm
最小缸体: 25 L
水层: Middle of the water column
饲养难度: 中等
性情: Calm, undemanding and well-suited to community life
产地: 日本

物种概述

Oryzias sakaizumii, a member of the family Adrianichthyidae, comes from Japan, where it inhabits warm freshwater streams and lakes. Calm, undemanding and well-suited to community life and unfussy omnivore; varied diet keeps condition, it grows to 3–4.4 cm and adapts well to a properly set-up aquarium in the 18–25 °C range. Other Oryzias species in our database include Oryzias curvinotus, Oryzias javanicus, Oryzias latipes.

原生生境

栖息地: Warm freshwater streams and lakes
水流: Still to gentle current
溶氧: Moderate oxygen levels

造景与硬件

底床: Fine sand and gravel
硬景观: Driftwood and smooth stones
水草: Hardy common aquarium plants

性格食性与混养

群游性: Small groups recommended
食性: Unfussy omnivore; varied diet keeps condition
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: Subtle external differences
繁殖方式: Spawns freely; remove parents to save the eggs

常见问题

北部日本青鳉好养吗？

中等难度，稳定水质比高端设备更关键。Calm, undemanding and well-suited to community life，Small groups recommended。

北部日本青鳉适合什么水温和水质？

水温控制在 18–25 °C，重点是稳定。Stable temperature matching the species origin。

北部日本青鳉能长多大，需要多大的缸？

成体约 3–4.4 cm；最小缸体 25 L，并留出活动空间。

北部日本青鳉吃什么？

Unfussy omnivore; varied diet keeps condition。建议人工饲料搭配冷冻或活饵，保证多样性。

北部日本青鳉能和其他鱼混养吗？

Calm, undemanding and well-suited to community life。推荐混养：Robust schooling cyprinids — Add activity without conflict。避免与Much larger predators — Risk at night同缸。

北部日本青鳉产自哪里？

产地为日本，典型栖息地是Warm freshwater streams and lakes，对溶氧要求一般。

北部日本青鳉会跳缸吗？

跳缸风险低，但加缸盖更稳妥。

北部日本青鳉怎么繁殖？

Spawns freely; remove parents to save the eggs。Subtle external differences。