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大头缺鳍鲶 · Striped Glass Catfish

大头缺鳍鲶

概要

字段值
类别鱼
学名Kryptopterus macrocephalus
别名大頭缺鰭鯰、Kryptopterichthys macrocephalus
分类鲶形目 Siluriformes › 鲶科 Siluridae › Kryptopterus
水体淡水
原产地印度尼西亚、马来西亚、泰国、新加坡
成体体长10 cm
饲养难度中等
最小水体108 L
最小缸长120 cm
群居方式群游
性情温和
外部数据seriouslyfish kryptopterus-macrocephalus;fishbase 11991

水质参数

参数耐受范围最适范围单位
水温20–26—°C
pH4–7——
总硬度1–8—dGH

概述

大头缺鳍鲶(Kryptopterus macrocephalus)来自泥炭沼泽林和相连黑水溪流,对成熟稳定、弱光且有遮蔽的环境更适应。它有斑点或条纹型外观,但这些花纹形式是否全为同种仍未明确。

分布与栖息地

分布于泰国南部、马来半岛、新加坡及苏门答腊、婆罗洲、爪哇。林冠使水面光线很弱,底部落叶、根枝丰富,腐殖物把水染成深色,矿物质很少;部分栖地已受破坏。模式地点常写作苏门答腊巴东,但当地后续记录和栖地适合性都有疑问。

饲养环境

底面积至少参考 120 × 30 厘米。用丰富遮蔽、浮水植物或水面植物降低光照,干落叶和赤杨果可增加黑水环境的自然感。只入成熟缸,避免水质和水化学波动。

食性与喂食

天然可能以甲壳类、其他无脊椎动物和小鱼为食,人工可用多样下沉干粮、活冷冻红虫和水蚯蚓,偶尔加适口小蚯蚓,不必依赖活鱼。

习性与混养

建议四尾以上同养,伙伴要温和、大小相近,并能适应相同水质。大很多或过分活跃的鱼会使它竞争吃亏,小鱼则有被捕食的可能。

雌雄区分

成年雄鱼明显较纤细,胸鳍硬刺后缘有锯齿,雌鱼相应位置较平滑。

补充说明

花纹和近似种之间存在混淆,不能把不同斑纹的进口鱼直接当作同一稳定品系。

图片

图片来自 SeriouslyFish,版权归各摄影者所有。

大头缺鳍鲶
Specimen from southern Thailand. · 摄影:Nonn Panitvong/Siamensis.org
大头缺鳍鲶
Specimen collected in Johor state, Peninsular Malaysia. · 摄影:Lim Teow Yeong
大头缺鳍鲶
Specimen of unconfirmed origin. · 摄影:Choy Heng Wah
大头缺鳍鲶
Individual collected in the Rajang river system, Sarawak state, Malaysia (Borneo). · 摄影:Michael Lo
English

Overview

A peat-swamp and blackwater specialist, Kryptopterus macrocephalus suits a mature shaded aquarium with ample cover. Striped and mottled forms are known, but it remains uncertain whether all belong to the same species.

Distribution & habitat

Records span southern Thailand, Peninsular Malaysia, Singapore, Sumatra, Borneo, and Java. Dense forest shade, leaf litter, and submerged roots characterize dark, low-mineral water. Many habitats are degraded. The often-cited Padang type locality is questionable because later records and suitable local habitat are lacking.

Aquarium setup

Provide at least a 120 by 30 cm footprint with extensive shelter and floating or surface vegetation. Dried leaves or alder cones can reinforce the blackwater setting. Biological maturity and stable water chemistry are essential before introduction.

Diet & feeding

Wild prey probably include crustaceans, other invertebrates, and small fish. Offer varied sinking foods and suitable live or frozen invertebrates rather than relying on live fish.

Behaviour & compatibility

Keep four or more with calm, comparably sized fish suited to the same water. Much larger or boisterous companions can outcompete it, while tiny fish may be vulnerable to predation.

Sexual dimorphism

Males are slimmer as adults and have serration along the rear pectoral-spine edge, which is smooth in females.

Notes

Variable markings and similar relatives complicate identification; a differently patterned import should not automatically be treated as a defined strain.

来源

ID: kryptopterus-macrocephalus · 文件: data/species/kryptopterus-macrocephalus.md · 状态: 草稿