腹盘鳅 · Vietnamese Giraffe Loach
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Annamia normani |
| 别名 | 腹盤鰍、Parhomaloptera normani |
| 分类 | 鲤形目 Cypriniformes › 腹吸鳅科 Gastromyzontidae › Annamia |
| 水体 | 淡水 |
| 原产地 | 柬埔寨、老挝、越南 |
| 成体体长 | 10 cm |
| 饲养难度 | 中等 |
| 最小水体 | 108 L |
| 最小缸长 | 120 cm |
| 群居方式 | 群游 |
| 性情 | 温和 |
| 水流偏好 | 高 |
| 外部数据 | seriouslyfish annamia-normani;fishbase 26830 |
水质参数
| 参数 | 耐受范围 | 最适范围 | 单位 |
|---|---|---|---|
| 水温 | 16–22 | — | °C |
| pH | 6–7.5 | — | — |
| 总硬度 | 1–10 | — | dGH |
概述
腹盘鳅（Annamia normani）是依赖急流环境的吸鳅，不能只当作普通“清洁鱼”使用。越南德美河的研究发现，成鱼会啃取石面坚硬的蓝细菌层，幼鱼则更多利用浅水处的有机碎屑，食物安排应考虑这种差异。
分布与栖息地
记录来自越南、老挝和柬埔寨的多条湄公河支流，也包括越南长山山脉东侧独立入海河流。常在有坡度的浅急流和石质河段活动，德美河成鱼偏急滩，幼鱼处于较浅水域；不少已知栖地受到水电开发计划威胁。
饲养环境
底面积至少参考 120 × 30 厘米，以砂砾和大小圆石模拟溪流，可添加沉木及耐流附生植物。强光有助石面附着生物生长，强过滤、水流和高溶氧缺一不可；每小时循环可参考水体的 10–15 倍，按需要补充造流和增氧。只入成熟缸，每周换水约三至五成，避免有机废物积累。
食性与喂食
德美河成鱼的蓝细菌专食观察未必能推广到所有种群。缸内可用含螺旋藻的饲料搭配红虫、水蚯蚓和丰年虾等，同时让多数表面保留附着生物。胸腹鳍之间明显瘦窄的个体，应在缺少竞争的环境持续获得适口食物，恢复后再考虑混养。
习性与混养
性情大体温和，但伙伴必须适应相似的急流和高溶氧环境，其他吸鳅之间可能有争执。可参考八尾以上同养的建议，单尾或数量太少容易躲藏。
雌雄区分
成熟雌鱼通常稍大，身体也更丰满。
补充说明
扁平体形、较长的尾鳍下叶和很小的马蹄形口是辨认线索，商品名并不能替代物种鉴定。
图片
图片来自 SeriouslyFish,版权归各摄影者所有。
English
Overview
An obligate riffle and rapid resident, Annamia normani needs more than an assignment as an aquarium cleaner. Adults studied in Vietnam’s Duc My River cropped hard cyanobacterial coatings, while juveniles used shallower areas and organic detritus.
Distribution & habitat
Records include Mekong tributaries in Vietnam, Laos, and Cambodia and separate coastal drainages of eastern Vietnam. Sloping shallow channels and rocky rapids are characteristic. Observations in the Duc My separated adult rapid habitat from shallower juvenile areas. Planned hydropower projects threaten many known locations.
Aquarium setup
Provide at least a 120 by 30 cm footprint with sand, gravel, rounded rocks, and optional wood or hardy attached plants. Strong illumination supports grazing surfaces. High oxygen, circulation, and effective filtration are essential; a turnover around 10–15 times the tank volume per hour is the suggested reference. Introduce fish only to mature systems and replace roughly 30–50% of the water weekly.
Diet & feeding
The specialized feeding seen in one river may not apply to every population. Offer algae-rich prepared foods alongside suitable animal prey and retain biofilm on most surfaces. Emaciated fish, especially those narrowed between the paired fins, need steady access to suitable food without competitors before joining a community.
Behaviour & compatibility
Generally peaceful, it suits companions adapted to comparable current and oxygen levels. Other hillstream loaches may provoke squabbles. Groups of eight or more follow the recommended approach; isolated fish or small groups can remain shy.
Sexual dimorphism
Mature females are usually a little larger and fuller-bodied.
Notes
A flattened profile, elongated lower tail lobe, and small horseshoe-shaped mouth provide identification clues; commercial names alone are unreliable.
来源
- https://www.seriouslyfish.com/species/annamia-normani(抓取于 2026-10-10)
annamia-normani · 文件: data/species/annamia-normani.md · 状态: 草稿