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Pseudomugil furcatus


Pseudomugil furcatus
Furcata Rainbow
霓虹燕子
Pseudomugil furcatus is a small species growing to a length of about 5 cm. They have two dorsal fins, separated by a small gap, the first much smaller than the second. The body colour is yellow-green in both males and females. The dorsal and anal fins of the males are transparent with narrow yellow margins. The pelvic and pectoral fins are often tinged with red. The caudal fin lobes are yellowish with black dorsal and ventral margins. Females caudal fin lobes are yellowish while the pectoral and pelvic fins are transparent. The outer part of the second dorsal fin is yellowish. The body scales have a slight dark edge. They differ from most other forms of Pseudomugil from Australia and New Guinea, in having the caudal fin longer and more deeply forked. Males are easily distinguished from females by their brighter colours and longer and more elongated dorsal fin.

Pseudomugil furcatus were originally collected from Peria Creek, a tributary of the Kwagira (Kwagila) River, in eastern Papua New Guinea. They have also been collected from Safia, in the Musa River valley where they are relatively common in small, clear rainforest streams. They have a range in Papua New Guinea between Dyke Ackland and Collingwood Bays. They are generally found in small, clear, relatively swift-flowing freshwater streams with abundant aquatic vegetation

霓虹燕子的性格十分温和,适合与其他习性温和的中、小型热带鱼类混合饲养。它们喜欢集群生活,时常集结于水域中、上层空间,以动物性生饵为主食,对人工饵料也较易接受。
 饲养的霓虹燕子最佳水质要求为弱碱性的老水环境。健康的霓虹燕子在水族箱中相当活跃,若是发现其行动迟缓或行为呆滞,那就表示水质环境不适或已经感染得病。值得注意的是它们的跳跃能力,一不留神,它们就会跃出水族箱外。所以,最好在饲养它们的水族箱上安装顶盖。
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