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波鱼 · Gangetic Scissortail Rasbora

波鱼

概要

字段值
类别鱼
学名Rasbora rasbora
别名波魚
分类鲤形目 Cypriniformes › 鲤科 Cyprinidae › Rasbora
水体淡水
成体体长13 cm
饲养难度中等
最小水体243 L
最小缸长120 cm
群居方式群游
性情温和
特征会跳缸: 是
外部数据seriouslyfish rasbora-rasbora;fishbase 10382
原产地可能原产巴基斯坦、印度、孟加拉国、缅甸及泰国
繁殖方式散卵

水质参数

参数耐受范围最适范围单位
水温20–25—°C
总硬度2–12—dGH

概述

波鱼(Rasbora rasbora)很少进入贸易,部分旧分布记录可能误认。它虽性情温和,却是需要大型群养空间的活跃鱼,选购时了解来源比仅看商品名更有意义。

分布与栖息地

名义范围涉及巴基斯坦、印度、孟加拉国、缅甸和泰国,但许多旧记录可疑。较新的记录集中于布拉马普特拉河流域与缅甸,泰国可能限于靠近缅甸的边境河流;新加坡、婆罗洲和苏门答腊不属其分布。推测活动于溪河开放水域,泰国疑似种群所在河段清澈、中等流速,多岩石枝条。

饲养环境

群养至少 120 × 45 × 45 厘米。可布置较大水草缸或石砾流水缸,留足游泳空间,硬景上附生耐受水草。严格维护、避免积污,并封好缸盖所有小缝隙以防跳出。

食性与喂食

可能主要摄食水生和陆生无脊椎动物。可接受合适大小的干粮,但应搭配小型活饵或冷冻饵料,如水蚤、红虫。

习性与混养

至少 6 条同养,群体可减少胆怯并改善展示。较大体型会让慢游或过于胆小的伙伴不安,应选择足够大胆且需求相符的混养鱼。

雌雄区分

成熟雌鱼腹部较圆,常略大。

繁殖

被描述为散卵且无护卵行为,家养成功情况尚不明确。可尝试近缘种方法:约 120 厘米长浅缸、弱光、成熟水与隔卵底,放入调养好的亲鱼并分次补较凉水。约两天后移走亲鱼,换海绵过滤以保护幼鱼。属内孵化和平游时间只能作尝试参考,预备适口小型活饵并观察实际摄食。

图片

图片来自 SeriouslyFish,版权归各摄影者所有。

波鱼
Rasbora rasbora. · 摄影:Mark Duffill
波鱼
栖息地 · The Kyar stream is a tributary of the River Thandwe and natural habitat of this species. Pictured here during dry season. · 摄影:Peter Cottle
波鱼
Like other members of the genus this species fares best in the company of its own kind. · 摄影:Mark Duffill
波鱼
A closer view of Kyar stream. · 摄影:Peter Cottle
波鱼
雌鱼 · Probable pair with female above. · 摄影:Mark Duffill
波鱼
The Songgaria River. · 摄影:Nonn Panitvong/Siamensis.org
波鱼
...home to a form of this species. · 摄影:Nonn Panitvong/Siamensis.org
波鱼
雌鱼 · Adult female specimen. · 摄影:Mark Duffill
English

Overview

Rarely offered in trade, Rasbora rasbora has a history of uncertain identifications. It is an active, peaceful fish requiring a substantial group aquarium. Collecting information is especially useful when assessing specimens sold under this name.

Distribution & habitat

The apparent range includes parts of South and mainland Southeast Asia, but many older records are doubtful. More recent reports emphasize the Brahmaputra basin and Myanmar, with Thai occurrences possibly confined to border rivers. Singapore and the Greater Sunda islands are excluded. A presumed Thai population occupies clear, moderately flowing rocky water, but its identity is not definitive.

Aquarium setup

At least 120 by 45 by 45 cm is indicated for a group. Plants or a rocky river arrangement can be used as long as open swimming space remains. Prevent organic waste buildup through consistent maintenance and seal the cover against jumping escapes.

Diet & feeding

Small invertebrates are the probable natural food. Appropriate dry foods can be supplemented with regular live or frozen meals.

Behaviour & compatibility

Keep six or more to promote confidence. Although peaceful, its size may unsettle shy or slow-moving companions; choose adequately bold fishes suited to the same enclosure.

Sexual dimorphism

Mature females tend to be larger and fuller through the abdomen.

Breeding

Hobby breeding is uncertain despite the description of egg scattering without care. A method adapted from relatives may be tried in a dim 120 cm shallow container with egg protection. Condition adults, add cooler water gradually and remove the parents after a couple of days. Gentle sponge filtration protects young fish. Treat development schedules from the genus as provisional and provide suitably small live food.

来源

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