黑腹歧须鮠 · Upside-down Catfish
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Synodontis nigriventris |
| 别名 | 黑腹歧鬚鮠 |
| 分类 | 鲶形目 Siluriformes › 倒立鲶科 Mochokidae › Synodontis |
| 水体 | 淡水 |
| 原产地 | 喀麦隆、刚果民主共和国、刚果共和国 |
| 成体体长 | 10 cm |
| 饲养难度 | 中等 |
| 群居方式 | 群游 |
| 外部数据 | seriouslyfish synodontis-nigriventris;fishbase 9599 |
| 性情 | 温和 |
水质参数
| 参数 | 耐受范围 | 最适范围 | 单位 |
|---|---|---|---|
| 水温 | 24–28 | — | °C |
| pH | 6–7.5 | — | — |
| 总硬度 | 5–20 | — | dGH |
概述
黑腹歧须鮠（Synodontis nigriventris）经常倒着游，也会倒悬在叶片和木根下。腹部比背部更深的颜色与这种姿态相配，是正常特征，并不意味着失去平衡；它是同属中较温和、适合结伴饲养的一种。
分布与栖息地
分布于喀麦隆、刚果民主共和国和刚果共和国，栖息植被茂密的河岸水域。
饲养环境
群养可参考 75 × 30 × 30 厘米的空间。用柔软底床、石块、沉木和弯曲树根形成多个藏身处，保持弱光，并配宽叶植物及浮水植物，让鱼有可倒悬休息的遮蔽。
食性与喂食
可参考同属多样化投喂方式，活饵、冷冻饵和干粮搭配去皮豌豆、黄瓜等植物材料。它不同于许多只在底部找食的近亲，常以倒游姿态在水面取食。
习性与混养
适合至少三至四尾同养，同伴能增加安全感，也让它们更常露面。可与温和鱼混养，避免好斗或强势的伙伴，不能因它是鲶鱼就认为能承受任意欺压。
雌雄区分
雄鱼比雌鱼更纤细、颜色更深。体形小，不适合用观察生殖乳突的常规手持方法分性别。
繁殖
水族箱繁殖已有成功，但产卵地点的经验不同，既有底床凹坑也有管状洞穴，可同时提供作尝试。野外雨季向淹水区移动，较凉的新水大量换入可能帮助诱产，仍不是保证成功的步骤。
据观察鱼苗约四天后可自由游动，最初保持正向，约七至八周才逐渐改为典型倒游姿势。可尝试丰年虾无节幼体或微虫开口。
补充说明
倒游是其正常行为，腹色较深有助倒悬时隐蔽。辨认近似鱼时还应比较头、口及眼睛的比例，不宜仅凭倒游姿势确认物种。
图片
图片来自 SeriouslyFish,版权归各摄影者所有。
English
Overview
Often swimming inverted or resting beneath leaves and wood, Synodontis nigriventris has a darker belly than back. This reversed shading accompanies its normal posture rather than indicating a balance disorder. It is among the gentler members of its genus.
Distribution & habitat
It occurs in Cameroon and both Congo republics, using densely vegetated river margins.
Aquarium setup
A 75 by 30 by 30 cm aquarium is a reference for a group. Soft substrate, rocks, roots, and wood should provide several retreats under dim light. Broad leaves and floating plants are valuable because the fish rests beneath overhead cover.
Diet & feeding
Use the genus-level approach of varied live, frozen, and prepared foods with plant material such as shelled peas or cucumber. Unlike many relatives, this species often feeds at the surface while inverted.
Behaviour & compatibility
Keep at least three or four together to encourage confidence and visibility. Peaceful companions are suitable, whereas aggressive or dominant fishes are inappropriate for this gentle catfish.
Sexual dimorphism
Males tend to be slimmer and darker. Its small size makes genital-papilla inspection unsuitable as a routine sexing method.
Breeding
Captive breeding has succeeded, though accounts disagree on pits versus tubular caves as spawning sites. Providing both is a reasonable experiment. Cooler water changes may imitate rainy-season conditions but are not a proven guarantee.
Fry have reportedly become free-swimming after about four days. They initially swim upright, adopting the characteristic inverted posture after roughly seven to eight weeks. Artemia nauplii or microworms are suggested starter foods.
Notes
The dark underside helps camouflage an inverted fish. Head, mouth, and eye proportions remain useful for separating lookalikes, since swimming upside down alone does not establish identity.
来源
- https://www.seriouslyfish.com/species/synodontis-nigriventris(抓取于 2026-10-10)
synodontis-nigriventris · 文件: data/species/synodontis-nigriventris.md · 状态: 草稿