Betta pi
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Betta pi |
| 分类 | 攀鲈目 Anabantiformes › 丝足鲈科 Osphronemidae › Betta |
| 水体 | 淡水 |
| 原产地 | 马来西亚、泰国 |
| 成体体长 | 9 cm |
| 饲养难度 | 中等 |
| 最小水体 | 81 L |
| 最小缸长 | 90 cm |
| 群居方式 | 成对 |
| 水流偏好 | 低 |
| 外部数据 | seriouslyfish betta-pi;fishbase 52524 |
| 繁殖方式 | 口孵 |
| 特征 | 会跳缸: 是 |
水质参数
| 参数 | 耐受范围 | 最适范围 | 单位 |
|---|---|---|---|
| 水温 | 22–28 | — | °C |
| pH | 4–6.5 | — | — |
| 总硬度 | 1–5 | — | dGH |
概述
Betta pi 因喉部形似希腊字母 π 的暗纹得名，是体形较大的雄性口孵斗鱼。同属中它不算攻击性特别强的种，可以成对或组群，但仍需要软水、弱光与安静环境。
分布与栖息地
见于泰国南部双溪哥乐附近的泥炭沼泽，以及马来西亚吉兰丹和登嘉楼。生活在泥炭沼泽森林、相连黑水溪流，也有淡水沼泽林记录。
树冠和岸边植被浓密，水常被腐殖物染成深色，矿物质少，底部铺有落叶、枝条和根系。季节性缺水时可能在湿落叶中撑过数周，这不是缸养时让水体干涸的要求。部分生境曾被橡胶或油棕种植取代。
饲养环境
一对或小群至少需要约 90 × 30 cm 的缸底面积。沉木、枝条、陶盆或短管形成阴暗躲藏区，落叶增加遮蔽和微生物来源，裸底可方便维护。
弱光、耐阴植物及浮水植物较合适，海绵过滤轻缓循环。使用很软的酸性水，碳酸盐硬度很低，必要时准备可靠软水来源。盖好缸防跳，水面上保留潮湿空气层与呼吸通道。
食性与喂食
自然可能捕食水生及陆生无脊椎动物。缸养通常能逐渐接受干粮，仍应规律补充水蚤、丰年虾、红虫等活饵或冷冻饵，避免过量。
习性与混养
可成对或组群，但普通混养缸并非首选。最好单种饲养；若加伙伴，只选极温和、条件相近的鱼，先核对相处和进食需求。
雌雄区分
成熟雄鱼通常较大，头较宽，鳍条更延长。
繁殖
求偶后反复缠抱，卵落在雄鱼臀鳍上，由雌鱼拾起再吐给雄鱼。雄鱼口孵约 10～28 天，期间有可能继续摄食。
受惊或经验不足时可能吞卵或提前吐卵，因此通常宜让雌鱼及其他鱼留在原位，减少捕捞干扰。成鱼倾向不吃苗，有鱼苗随亲鱼长得更快的经验，但不应视为固定规律。
育苗缸水面空气应温暖潮湿。自由游动的鱼苗可吃微虫和丰年虾无节幼体，避免大量单一使用后者。规律少量换水，减少间隔很久后的大幅替换。
补充说明
喉部 π 形暗纹、两性臀鳍较宽的蓝色外缘，以及背鳍和尾鳍缺少横纹，可结合用于识别。
图片
图片来自 SeriouslyFish,版权归各摄影者所有。
English
Overview
Betta pi takes its name from a dark throat marking resembling the Greek letter π. This large paternal mouthbrooder is less confrontational than some members of its genus and can be maintained as a pair or group, with quiet soft-water accommodation.
Distribution & habitat
Records come from peat swamps near Sungai Golok in southern Thailand and from Kelantan and Terengganu in Malaysia. It inhabits peat-swamp forest, connected blackwater streams, and freshwater swamp forest.
Dense vegetation shades dark, mineral-poor water over leaves, branches, and roots. During seasonal water loss, fish may persist in moist leaves for weeks; this is a survival circumstance rather than an aquarium requirement. Some habitats have been replaced by rubber or oil-palm plantations.
Aquarium setup
Allow at least a 90 × 30 cm footprint for a pair or small group. Wood, branches, pots, and short pipes make shaded retreats. Leaves add cover and microbial growth, while bare-bottom housing can simplify cleaning.
Use subdued light, tolerant plants, floating vegetation, and gentle sponge filtration. Very soft acidic water with little carbonate hardness may require a dependable soft-water supply. Fit a secure cover against jumping while retaining humid air and breathing access above the surface.
Diet & feeding
Aquatic and terrestrial invertebrates are thought to form its natural food. Captive fish normally learn to take dry products, supplemented regularly with water fleas, Artemia, bloodworms, and similar live or frozen foods. Control portions.
Behaviour & compatibility
Pairs and groups are possible, but an ordinary community is not the best default. Dedicated housing is usually preferable. Any companions should be exceptionally gentle and share its environmental requirements.
Sexual dimorphism
Adult males grow larger and broader-headed, with more extended fins.
Breeding
Repeated embraces release eggs onto the male's anal fin. The female retrieves and passes them to him for oral incubation. Brooding lasts approximately 10–28 days, and the male may continue accepting food.
Stress or inexperience can cause swallowing or premature release. Leaving the female and other fish undisturbed avoids disruption from catching them. Adults tend to leave fry unharmed; faster growth alongside parents has been reported but is not guaranteed.
Warm, humid nursery air supports labyrinth development. Swimming fry can take microworms and Artemia nauplii, without excessive dependence on the latter. Favor regular modest water changes over infrequent large replacements.
Notes
The π-shaped throat mark, broad blue anal-fin edge in both sexes, and absence of transverse dorsal and caudal bars provide useful identification features together.
来源
- https://www.seriouslyfish.com/species/betta-pi(抓取于 2026-10-10)
betta-pi · 文件: data/species/betta-pi.md · 状态: 草稿