科: Cobitidae
北方泥鳅为鳅科鱼类，温和的底栖鱼，喜在细沙中翻掘，原生分布于欧洲。夜行性底栖鱼，细沙底床能让它展现自然觅食行为。成体约 10.3–15.1 cm，小群 5 尾以上，单独饲养易胆怯，适宜水温 5–25 °C。细沙胜过一切造景。
A Cobitidae species native to Amur basin: Misgurnus nikolskyi lives bottom-dwelling over sandy stretches of slow rivers. Peaceful bottom-dweller; burrows in fine sand. Adults reach 10.3–15.1 cm. It is one of the aquarium-kept Misgurnus species we profile, alongside Misgurnus anguillicaudatus, Misgurnus mohoity.
中等难度，稳定水质比高端设备更关键。Peaceful bottom-dweller; burrows in fine sand，Loose groups of 5+; loneliness makes them shy。
水温控制在 5–25 °C，重点是稳定。Room temperature stable range。
成体约 10.3–15.1 cm，属Bottom-dwelling鱼类，建议至少 274 L 缸体。
Omnivorous bottom-feeder — sinking pellets, frozen foods。每天两小餐比一顿大餐更利于状态。
Peaceful bottom-dweller; burrows in fine sand。推荐混养：Other peaceful bottom fish — Share the lower water without conflict。避免与Boisterous feeders — Outcompete slow, nocturnal eaters同缸。
产地为黑龙江水系，典型栖息地是Sandy stretches of slow rivers，对溶氧要求一般。
Spawns over sand and plants; eggs are abandoned。Females noticeably plumper when mature。