一线灯 (Hemigrammus unilineatus)

科: Characidae

一线灯为Characidae鱼类，原生分布于南美洲。成体约 4–5.8 cm，适宜水温 23–28 °C。

饲养参数

水温: 23–28 °C
pH: 6–7.5
GH 硬度: 5–19 dGH
成体体长: 4–5.8 cm
最小缸体: 40 L
水层: Bottom-dwelling
饲养难度: 中等
性情: Mostly peaceful; larger species predatory
产地: 南美洲

物种概述

Hemigrammus unilineatus is a Characidae from South America. In the wild it prefers blackwater streams and flooded forest; in the aquarium it stays mostly peaceful. Plan on 4–5.8 cm of adult fish at 23–28 °C. Related profiles: Hemigrammus bleheri, Hemigrammus ocellifer, Hemigrammus rhodostomus.

原生生境

栖息地: Blackwater streams and flooded forest
水流: Still to gentle current
溶氧: Moderate

造景与硬件

底床: Dark sand and leaf litter
硬景观: Driftwood and dense plant edges
水草: Floating and shaded plants appreciated

性格食性与混养

群游性: Strong shoalers; keep in groups of 8 or more
食性: Omnivore with carnivorous tilt
推荐混养: Similar-sized peaceful community fish — Similar size and water needs
避免混养: Much smaller fish — May outcompete or bully tiny tankmates

繁殖与备注

雌雄差异: Subtle; females fuller-bodied
繁殖方式: Egg-scatterer among fine plants

常见问题

一线灯好养吗？

饲养难度：中等。Mostly peaceful; larger species predatory。

一线灯适合什么水温和水质？

保持 23–28 °C 并避免波动，pH 6–7.5、GH 5–19 dGH 即可。

一线灯能长多大，需要多大的缸？

成体 4–5.8 cm 左右，因其Bottom-dwelling的习性，40 L 以上的缸更合适。

一线灯吃什么？

Omnivore with carnivorous tilt。建议人工饲料搭配冷冻或活饵，保证多样性。

一线灯能和其他鱼混养吗？

可以。Mostly peaceful; larger species predatory，适合与Similar-sized peaceful community fish — Similar size and water needs混养。避开Much smaller fish — May outcompete or bully tiny tankmates。

一线灯产自哪里？

原生于南美洲，栖息于Blackwater streams and flooded forest。Still to gentle current，Moderate。

一线灯会跳缸吗？

换水与维护期间建议加盖，防止惊跳。

一线灯怎么繁殖？

Egg-scatterer among fine plants。Subtle; females fuller-bodied。