镰鳍搏鱼
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Betta falx |
| 别名 | 鐮鰭搏魚 |
| 分类 | 攀鲈目 Anabantiformes › 丝足鲈科 Osphronemidae › Betta |
| 水体 | 淡水 |
| 原产地 | 印度尼西亚苏门答腊占碑及北苏门答腊 |
| 成体体长 | 5 cm |
| 饲养难度 | 中等 |
| 最小水体 | 54 L |
| 最小缸长 | 60 cm |
| 群居方式 | 成对 |
| 水流偏好 | 低 |
| 外部数据 | seriouslyfish betta-falx;fishbase 58078 |
| 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 | 22–27 | — | °C |
| pH | 4.7–6.8 | — | — |
| 总硬度 | 0–5 | — | dGH |
概述
镰鳍搏鱼（Betta falx）是苏门答腊的小型雄性口孵斗鱼，鳃盖带蓝绿色虹彩，臀鳍和尾鳍外缘有偏红色带。它对酸碱度不像某些近似种那么苛刻，但仍需软水、安静遮蔽和稳定维护。
分布与栖息地
特有于印度尼西亚苏门答腊，主要采自占碑，也有北苏门答腊记录。生活在森林沼泽溪流与水潭，部分地点极浅，林冠和岸边植物遮光，水中矿物质很少、偏酸，底部是落叶、枝条和树根。
饲养环境
沉木根枝、陶盆或管道可提供多处退避空间，落叶增加遮蔽和微生物。光线宜暗，配耐阴水草和浮水植物。过滤保持柔和，水质维持偏酸和较低硬度即可，不必追求其他黑水种的极端酸度。缸盖严密防跳，留水面上方湿暖空气。
食性与喂食
野外可能捕食昆虫、小型无脊椎动物和浮游动物。通常可学会吃干饲料，仍应经常提供水蚤、丰年虾、红虫等小型活饵或冷冻饵，避免过量投喂。
习性与混养
单种饲养或与十分安静的同伴相处较合适。较大、活跃或抢食快的鱼容易压制它，可成对或小群饲养。
雌雄区分
雄鱼通常更大，头部更宽、虹彩鳞更多，鳍较延长。
繁殖
雌雄求偶及试抱后分批产卵，卵先落在雄鱼臀鳍处，再由雌鱼拾起吐给雄鱼。雄鱼含卵约九至十二天，受到惊扰或经验不足时可能吞卵或提前吐卵，因此不宜在含卵期间反复移动同伴。
幼鱼释放后可单独养，也可与亲鱼同养，有报告认为后者长得较快。它们能直接摄食微虫、丰年虾无节幼体，少量多样、每日两三次投喂，避免单一过量丰年虾。使用严密缸盖保持湿暖空气，并以小量勤换水维持稳定。
补充说明
雄鱼背鳍横纹、鳃盖虹彩和偏红鳍缘应结合观察。不同采集地点常保留占碑或北苏门答腊等标签，有助于管理血系及身份记录。
图片
图片来自 SeriouslyFish,版权归各摄影者所有。
English
Overview
Betta falx is a small Sumatran mouthbrooder with blue-green opercular iridescence and reddish edging on the anal and tail fins. It is less exacting about acidity than some relatives, but still benefits from soft water, shaded retreats, and stable maintenance.
Distribution & habitat
Endemic to Sumatra, it is collected mainly in Jambi, with records also from North Sumatra. Forest swamp streams and pools may be extremely shallow. Dense cover shades acidic, low-mineral water above leaves, roots, and branches.
Aquarium setup
Use wood, roots, pots, or tubing to provide several retreats. Dried leaves supply extra cover and microorganisms. Dim lighting, tolerant plants, and floating vegetation are suitable. Keep filtration gentle and maintain soft water on the acidic side of neutral rather than pursuing the extreme acidity associated with some other blackwater bettas. A secure lid should retain humid air and prevent jumping.
Diet & feeding
Insects, small invertebrates, and zooplankton are likely natural foods. Dry products are usually accepted after recognition, but regular small live or frozen water fleas, brine shrimp, and bloodworms should supplement them. Avoid excessive feeding.
Behaviour & compatibility
A species setup or exceptionally quiet companions are preferable. Much larger, vigorous, or competitive fishes may intimidate it. Pairs and small groups are possible.
Sexual dimorphism
Males grow larger, develop broader heads and longer fins, and show stronger head iridescence.
Breeding
Courtship and practice embraces precede laying. Eggs are caught against the male's anal fin before the female collects and passes them to him. Incubation normally lasts about nine to twelve days. A disturbed or inexperienced male may swallow or release the brood, so avoid unnecessary movement of established companions.
Free-swimming young can be raised separately or with their parents; faster growth in the latter arrangement has been reported rather than guaranteed. Microworms and brine shrimp nauplii are suitable immediately. Provide small varied meals several times daily, avoid excessive brine shrimp, maintain warm moist air, and change modest amounts of water regularly.
Notes
Dorsal-fin barring in males, opercular iridescence, and red fin edging form useful identifying clues. Preserve locality labels to keep breeding records clear.
来源
- https://www.seriouslyfish.com/species/betta-falx(抓取于 2026-10-10)
betta-falx · 文件: data/species/betta-falx.md · 状态: 草稿