科: Melanotaeniidae
丝鳍彩虹鱼为虹银汉鱼科鱼类，和平群游，雄鱼体色闪炼、偶有轻斗，原生分布于大洋洲（澳大利亚北部及新几内亚）。虹彩是诚实的状态信号：体色与状态随水质与年龄一起变化。成体约 3–4.4 cm，至少 6–8 尾，群体越大越安定，适宜水温 26–30 °C。缸要长，群要大，水要清。
Iriatherina werneri, a member of the family Melanotaeniidae, comes from N Australia & New Guinea, where it inhabits warm freshwater streams and lakes. Peaceful schooling fish; males shimmer and spar gently and omnivore; quality flakes plus vegetable matter, it grows to 3–4.4 cm and adapts well to a properly set-up aquarium in the 26–30 °C range. In a community tank it pairs well with Robust peaceful cyprinids.
饲养难度：中等。Peaceful schooling fish; males shimmer and spar gently。
建议水温 26–30 °C，26–30 °C recorded range；Stable temperature matching the species origin。
成体约 3–4.4 cm；最小缸体 25 L，并留出活动空间。
Omnivore; quality flakes plus vegetable matter。它在Fine sand and gravel上自然觅食，投喂可少量多次。
Peaceful schooling fish; males shimmer and spar gently。推荐混养：Robust peaceful cyprinids — Add motion without menace。避免与Small timid fish — Outcompeted at feeding time同缸。
原生于大洋洲（澳大利亚北部及新几内亚），栖息于Warm freshwater streams and lakes。Still to gentle current，Moderate oxygen levels。
换水与维护期间建议加盖，防止惊跳。
Prolific egg-scatterer when kept hard and alkaline。Subtle external differences。