霓虹燕子 (Melanotaenia praecox)

科: Melanotaeniidae

霓虹燕子为虹银汉鱼科鱼类，和平群游，雄鱼体色闪炼、偶有轻斗，原生分布于中北美洲。开阔、向阳水体的群游鱼，体色靠岁月而非店家灯光。成体约 6.8–9.9 cm，至少 6–8 尾，群体越大越安定，适宜水温 27–30 °C。缸要长，群要大，水要清。

饲养参数

水温: 27–30 °C
pH: 7–8
GH 硬度: 9–19 dGH
成体体长: 6.8–9.9 cm
最小缸体: 118 L
水层: Middle of the water column
饲养难度: 中等
性情: Peaceful schooling fish; males shimmer and spar gently
产地: 大洋洲（新几内亚）

物种概述

A Melanotaeniidae species native to N Australia & New Guinea: Melanotaenia praecox lives middle of the water column over warm freshwater streams and lakes. Peaceful schooling fish; males shimmer and spar gently. Adults reach 6.8–9.9 cm. It is one of the aquarium-kept Melanotaenia species we profile, alongside Melanotaenia boesemani.

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: Groups of 6–8 minimum; larger schools calm them
食性: Omnivore; quality flakes plus vegetable matter
推荐混养: Other rainbowfish and large peaceful tetras — Share the open mid-water
避免混养: Boisterous cichlids — Stress and fin damage

繁殖与备注

雌雄差异: Subtle external differences
繁殖方式: Prolific egg-scatterer when kept hard and alkaline

常见问题

霓虹燕子好养吗？

中等难度，稳定水质比高端设备更关键。Peaceful schooling fish; males shimmer and spar gently，Groups of 6–8 minimum; larger schools calm them。

霓虹燕子适合什么水温和水质？

水温控制在 27–30 °C，重点是稳定。Stable temperature matching the species origin。

霓虹燕子能长多大，需要多大的缸？

成体约 6.8–9.9 cm；最小缸体 118 L，并留出活动空间。

霓虹燕子吃什么？

Omnivore; quality flakes plus vegetable matter。每天两小餐比一顿大餐更利于状态。

霓虹燕子能和其他鱼混养吗？

Peaceful schooling fish; males shimmer and spar gently；Groups of 6–8 minimum; larger schools calm them。理想混养对象：Other rainbowfish and large peaceful tetras — Share the open mid-water。需避开Boisterous cichlids — Stress and fin damage。

霓虹燕子产自哪里？

产地为大洋洲（新几内亚），典型栖息地是Warm freshwater streams and lakes，对溶氧要求一般。

霓虹燕子会跳缸吗？

无明显跳缸倾向，常规缸盖即可。

霓虹燕子怎么繁殖？

Prolific egg-scatterer when kept hard and alkaline。Subtle external differences。