尾斑波鱼 · Greater Scissortail Rasbora
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Rasbora caudimaculata |
| 别名 | 尾斑波魚 |
| 分类 | 鲤形目 Cypriniformes › 鲤科 Cyprinidae › Rasbora |
| 水体 | 淡水 |
| 成体体长 | 15 cm |
| 饲养难度 | 中等 |
| 最小水体 | 304 L |
| 最小缸长 | 150 cm |
| 群居方式 | 群游 |
| 性情 | 温和 |
| 特征 | 会跳缸: 是 |
| 外部数据 | seriouslyfish rasbora-caudimaculata;fishbase 10364 |
| 原产地 | 可能主要限于马来西亚、印度尼西亚和文莱 |
| 食性 | 肉食 |
| 游动层 | 上层 |
| 繁殖方式 | 散卵 |
水质参数
| 参数 | 耐受范围 | 最适范围 | 单位 |
|---|---|---|---|
| 水温 | 20–26 | — | °C |
| 总硬度 | 2–10 | — | dGH |
概述
尾斑波鱼（Rasbora caudimaculata）体长可达约 15 厘米，尾鳍橙红、两叶端部黑色，停游时尾鳍可作剪刀般开合。它需要大型群养缸，小空间容易令它紧张。
分布与栖息地
很可能主要分布于马来半岛、苏门答腊与婆罗洲，泰国南部和柬埔寨的部分旧记录可能不正确。栖地既包括清澈的急流林溪，也包括富含落叶和枝条的缓流泥炭黑水；不同种群经历的酸碱度和含氧条件可能很不一样。
饲养环境
群养至少考虑 150 × 45 × 45 厘米，优先留出泳道并保持洁净水质。可做流水石砾景观或遮光的沉木落叶黑水景观，水草按环境选择。它常居表层、善跳，细小缝隙也可能成为逃逸口。对有机废物积累敏感，入缸要慢慢适应；购买前了解来源，避免把野生急流种群骤然转入不同酸碱度与含氧条件。
食性与喂食
野外主要取食水生、陆生无脊椎动物，尤其昆虫。干粮可作日常组成，配合红虫、水蚤、丰年虾等活饵或冷冻饵料。
习性与混养
至少 6 条同养。它很温和，但体型可让胆怯或慢游鱼承受压力，适合大型缸中足够大胆且需求相符的伙伴。
雌雄区分
成年雄鱼较修长，臀鳍可有淡黄色。
繁殖
被描述为散卵且不护卵，但爱好者缸内繁殖是否已成功并不确定。可尝试放大近缘种的方法：约 120 × 30 × 30 厘米浅缸、弱光、隔卵网和半缸水，调养后放入一两对，分次补较凉水。约两天后移走亲鱼，用海绵过滤保护幼鱼。属内常见 18～48 小时孵化、再 24～48 小时平游，仅能作为尝试时的观察参考；准备适口微虫、丰年虾无节幼体。
图片
图片来自 SeriouslyFish,版权归各摄影者所有。
English
Overview
The orange-red tail and dark lobe tips of Rasbora caudimaculata make it a conspicuous large rasbora. Its tail may twitch in a scissorlike motion while resting. Adults reach around fifteen centimeters, and cramped housing can produce nervous behavior.
Distribution & habitat
The likely range centers on Peninsular Malaysia, Sumatra and Borneo; some older mainland records are doubtful. It occurs in both clear flowing forest channels and slow, acidic peat-swamp waters. Conditions experienced by different populations can therefore differ markedly.
Aquarium setup
Provide at least 150 by 45 by 45 cm for a group. Both river-style and shaded swamp-style layouts are possible, but open space and clean water take priority. Seal even small lid gaps: this surface fish is an effective jumper. Avoid accumulated organic waste and acclimatize gradually, particularly when wild fish are moved between contrasting habitat conditions.
Diet & feeding
Natural feeding centers on invertebrates, especially insects. A varied aquarium menu can combine prepared foods with regular live or frozen animal meals.
Behaviour & compatibility
Keep six or more with confident, compatible companions. Peaceful behavior does not prevent its size from disturbing much smaller or more hesitant tankmates.
Sexual dimorphism
Adult males tend to be slimmer, with faint yellow in the anal fin.
Breeding
Captive success in hobby aquaria is uncertain, although the species is described as an egg scatterer without brood care. An adapted method from smaller relatives may be tried in a 120 cm shallow container with dim light, protected eggs and gradual cooler-water additions. Remove adults after a couple of days and use gentle sponge filtration. Timing quoted for the genus should be treated as guidance rather than a verified schedule for this species. Have appropriately sized live fry foods available.
来源
- https://www.seriouslyfish.com/species/rasbora-caudimaculata(抓取于 2026-10-10)
rasbora-caudimaculata · 文件: data/species/rasbora-caudimaculata.md · 状态: 草稿