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史氏平鳍鳅

史氏平鳍鳅

概要

字段值
类别鱼
学名Homalopteroides smithi
别名史氏平鰭鰍、Homaloptera lineata、Homaloptera smithi
分类鲤形目 Cypriniformes › 爬鳅科 Balitoridae › Homalopteroides
水体淡水
原产地柬埔寨、老挝、马来西亚、泰国、越南
成体体长6 cm
饲养难度中等
最小水体54 L
最小缸长60 cm
群居方式群游
水流偏好高
外部数据seriouslyfish homalopteroides-smithi;fishbase 26829

水质参数

参数耐受范围最适范围单位
水温20–25.5—°C
pH6–7.5——
总硬度1–12—dGH

概述

史氏平鳍鳅(Homalopteroides smithi)是同属中较常见于水族饲养的一种,背部有鞍形斑,尾鳍带数道深纹。饲养仍需稳定富氧的流水及小型食物,常见不代表能适应任意新缸或低氧环境。

分布与栖息地

从泰国南部到湄南河、湄公河水系多地有记录,也见于马来半岛及老挝、柬埔寨、越南部分湄公河流域。它生活在清澈急流及上游,砂砾、岩石和基岩表面覆盖附着生物,岸边植被通常发达。

饲养环境

底面积至少参考 60 × 30 厘米。砂砾底铺不同大小圆石,沉木根枝和耐受附生植物可供停驻。以强过滤保持清洁,并按需配气石和造流,每小时循环可参考水体的 10–15 倍。系统需成熟稳定后再引入,不能只看水清就判断已经适合。

食性与喂食

参考同属捕食小型甲壳类、昆虫幼虫等的习性,定期喂水蚤、丰年虾、红虫等活冷冻饵。部分下沉干粮可能接受,但不应假定只吃干粮就足够。消瘦个体先降低竞争,持续提供合适且容易吃到的食物。

习性与混养

不是好斗鱼,选择适应相似环境的伙伴,相似爬鳅之间仍可能有小争执。六尾以上的群体更适合观察互动,数量太少可能退缩。

雌雄区分

成熟雌鱼通常稍大、身体更丰满。

补充说明

尾鳍通常有三至四条暗带,某些个体下叶色素浓重,可能遮住条纹。背部鞍斑、胸鳍比例及其他形态要综合比较,不宜只靠一处花纹判断。

图片

图片来自 SeriouslyFish,版权归各摄影者所有。

史氏平鳍鳅
H. smithi is the most commonly-available member of the H. wassinki species group. · 摄影:Odyssey
史氏平鳍鳅
栖息地 · Habitat in Chanthaburi province, eastern Thailand. · 摄影:Jim Pasola
史氏平鳍鳅
H. smithi underwater in the stream shown in the previous image. · 摄影:Bullung Siriphiphat
史氏平鳍鳅
Another specimen phtotograped in the same habitat. · 摄影:Bullung Siriphiphat
史氏平鳍鳅
Specimen exhibiting cryptic colour pattern, Chanthaburi province, Thailand. · 摄影:Jim Pasola
史氏平鳍鳅
Newly-imported specimens are often a little emaciated as seen here. · 摄影:Steven Clarke
史氏平鳍鳅
Freshly-collected specimen. · 摄影:Jim Pasola
史氏平鳍鳅
栖息地 · Habitat of the species in Chanthaburi Province, eastern Thailand, close to the border with Cambodia. · 摄影:Jim Pasola
史氏平鳍鳅
Drawing of H. smithi taken from Smith, H. M. 1945. The fresh-water fishes of Siam, or Thailand. · 摄影:FAO
English

Overview

Relatively familiar in aquaria, Homalopteroides smithi shows dorsal saddles and dark tail bands. Availability does not remove its need for mature oxygen-rich water and regular appropriately sized foods.

Distribution & habitat

Its range includes much of Thailand, Peninsular Malaysia, and parts of the Mekong basin in Laos, Cambodia, and Vietnam. Clear fast streams and headwaters have gravel or rocky surfaces supporting biofilm, with substantial riparian vegetation.

Aquarium setup

Use at least a 60 by 30 cm footprint with varied rocks over sand or gravel. Wood and attached hardy plants offer resting surfaces. Filtration, aeration, and circulation should support the suggested turnover of 10–15 tank volumes per hour. Biological maturity and stability are necessary, not merely clear-looking water.

Diet & feeding

The genus is described as feeding on small crustaceans, insect larvae, and other invertebrates. Offer regular small live or frozen meals. Some sinking dry foods may be accepted, but should not be the only assumed food. Give emaciated arrivals accessible meals without competition until they recover.

Behaviour & compatibility

It is not aggressive, but companions need compatible water requirements and similar loaches may still squabble. Six or more provide a better basis for observing social behavior, whereas small groups may be less confident.

Sexual dimorphism

Mature females are typically a little larger and fuller-bodied.

Notes

The tail usually has three or four dark bands, though dense pigment on the lower lobe may obscure them. Combine this with dorsal saddles, fin proportions, and other features instead of relying on one marking.

来源

ID: homalopteroides-smithi · 文件: data/species/homalopteroides-smithi.md · 状态: 草稿