日光八目鳅 (Lefua nikkonis)

科: Nemacheilidae

日光八目鳅为条鳅科鱼类，温和的底栖鱼，喜在细沙中翻掘，原生分布于日本。夜行性底栖鱼，细沙底床能让它展现自然觅食行为。成体约 6–8.8 cm，小群 5 尾以上，单独饲养易胆怯，适宜水温 15–25 °C。细沙胜过一切造景。

饲养参数

水温: 15–25 °C
pH: 6.8–7.5
GH 硬度: 8–18 dGH
成体体长: 6–8.8 cm
最小缸体: 93 L
水层: Bottom-dwelling
饲养难度: 中等
性情: Peaceful bottom-dweller; burrows in fine sand
产地: 日本

物种概述

Lefua nikkonis is a Nemacheilidae from Japan. In the wild it prefers hill-streams and riffles over pebbles; in the aquarium it stays peaceful bottom-dweller. Plan on 6–8.8 cm of adult fish at 15–25 °C. Related profiles: Lefua costata, Lefua echigonia.

原生生境

栖息地: Hill-streams and riffles over pebbles
水流: Strong, well-oxygenated current
溶氧: Requires well-oxygenated water

造景与硬件

底床: Smooth pebbles and coarse sand
硬景观: Stacked stones forming crevices
水草: Anubias and other hardy attachers

性格食性与混养

群游性: Loose groups of 5+; loneliness makes them shy
食性: Omnivorous bottom-feeder — sinking pellets, frozen foods
推荐混养: Other peaceful bottom fish — Share the lower water without conflict
避免混养: Boisterous feeders — Outcompete slow, nocturnal eaters

繁殖与备注

雌雄差异: Females rounder-bodied
繁殖方式: Spawns over sand and plants; eggs are abandoned

常见问题

日光八目鳅好养吗？

饲养难度：中等。Peaceful bottom-dweller; burrows in fine sand。

日光八目鳅适合什么水温和水质？

建议水温 15–25 °C，15–25 °C recorded range；Cooler, stable range preferred。

日光八目鳅能长多大，需要多大的缸？

成体约 6–8.8 cm，属Bottom-dwelling鱼类，建议至少 93 L 缸体。

日光八目鳅吃什么？

Omnivorous bottom-feeder — sinking pellets, frozen foods。建议人工饲料搭配冷冻或活饵，保证多样性。

日光八目鳅能和其他鱼混养吗？

可以。Peaceful bottom-dweller; burrows in fine sand，适合与Other peaceful bottom fish — Share the lower water without conflict混养。避开Boisterous feeders — Outcompete slow, nocturnal eaters。

日光八目鳅产自哪里？

产地为日本，典型栖息地是Hill-streams and riffles over pebbles，对溶氧要求较高。

日光八目鳅怎么繁殖？

人工环境下：Spawns over sand and plants; eggs are abandoned。Females rounder-bodied。