Pethia reval
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Pethia reval |
| 别名 | Puntius reval |
| 分类 | 鲤形目 Cypriniformes › 鲤科 Cyprinidae › Pethia |
| 水体 | 淡水 |
| 原产地 | 斯里兰卡 |
| 成体体长 | 3.4 cm |
| 饲养难度 | 入门 |
| 最小水体 | 68 L |
| 最小缸长 | 75 cm |
| 群居方式 | 群游 |
| 性情 | 温和 |
| 外部数据 | seriouslyfish pethia-reval;fishbase 64705 |
水质参数
| 参数 | 耐受范围 | 最适范围 | 单位 |
|---|---|---|---|
| 水温 | 18–26 | — | °C |
| pH | 6–7.5 | — | — |
| 总硬度 | 2–12 | — | dGH |
概述
Pethia reval 是斯里兰卡西部的小型群游鱼，多数个体背鳍、臀鳍和腹鳍发红，Kalu 河群体则可偏淡黄。它曾被当作近似种的红鳍体色型，因此只凭鳍色未必能辨认。
分布与栖息地
原产斯里兰卡西部 Kelani、Maha Oya 及相邻较小流域，包括 Attanagalu、Kalu 等河系。东北向出海的 Mahaweli 河群体可能是人为引入，分布南端也可能与近缘种发生自然杂交，均需保留不确定性。
可能偏向较小支流水系，而非主河道，但具体栖境尚未明确。
饲养环境
密植水草、深色底床有利于显色，浮水植物与沉木根枝提供遮光和自然结构。布景选择较灵活，过滤无需很强，适度水流和溪流式安排也可适应。
食性与喂食
天然可能搜食藻、硅藻、碎屑和多类小型无脊椎动物。缸中易于喂养，优质薄片、颗粒与规律的小活饵、冷冻红虫、水蚤、丰年虾搭配，部分干粮加入植物或藻成分。
习性与混养
通常温和，经过体型、性情和水质核对后，可与相容小型鲤科鱼、脂鲤、卵胎生鱼及适合的鲶鳅类搭配。
建议六至十条或更多，减少胆怯、表现更自然的群体活动，雄鱼面对竞争者时颜色也会更浓。
雌雄区分
成年雄鱼明显较小、较纤细，色彩更鲜艳，繁殖状态下尤其明显。
繁殖
尚无可采用的人工繁殖记录。
补充说明
除多数群体的红鳍外，无口须、不完整侧线，以及鳃后和臀鳍基后端上方的两道黑纹也是识别组合。Kalu 河淡黄鳍例外说明鳍色不应单独作为否定身份的依据。
正式描述前曾被视作 Pethia cumingii 的体色型，形态与产地信息应一起比较，不能只凭商品名或一张鲜艳雄鱼照片判断。
图片
图片来自 SeriouslyFish,版权归各摄影者所有。
English
Overview
Most Pethia reval have red dorsal, anal, and pelvic fins, but Kalu River fish may be pale yellow. This small western Sri Lankan shoaler was once considered a red-finned form of a relative, so fin color alone does not establish identity.
Distribution & habitat
It is native to western Sri Lanka's Kelani, Maha Oya, and neighboring smaller drainages including the Attanagalu and Kalu. The northeastern Mahaweli population appears introduced, while possible natural hybridization with a relative has been suggested near the southern range limit.
Smaller tributaries are the presumed habitat rather than main channels, but precise details remain unconfirmed.
Aquarium setup
Dense plants and a dark substrate enhance appearance. Floating cover and roots provide shade and structure. Decoration is flexible, with modest filtration and some water movement; a stream-style arrangement can also work.
Diet & feeding
Algae, diatoms, debris, and small invertebrates are presumed wild foods. Feeding is straightforward in captivity. Combine good flakes or granules with regular small live or frozen bloodworms, water fleas, and Artemia, including some plant- or algae-enriched food.
Behaviour & compatibility
It is generally peaceful with appropriately matched small cyprinids, characins, livebearers, and suitable catfishes or loaches.
Keep six to ten or more. Grouping reduces nervousness and promotes natural behavior, with males developing stronger color around rivals.
Sexual dimorphism
Adult males are smaller, slimmer, and more vividly colored, particularly during reproduction.
Breeding
No practical aquarium breeding record is available.
Notes
Absent barbels, an incomplete lateral line, and dark bars behind the gill opening and above the rear of the anal base complement the usually red fins. Pale yellow fins in the Kalu population demonstrate why color alone cannot exclude identity.
Former treatment as a color form of Pethia cumingii makes combined assessment of morphology and locality preferable to a trade label or photograph of one bright male.
来源
- https://www.seriouslyfish.com/species/pethia-reval(抓取于 2026-10-10)
pethia-reval · 文件: data/species/pethia-reval.md · 状态: 草稿