银胸斧鱼 · Silver Hatchetfish
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Gasteropelecus levis |
| 别名 | 銀胸斧魚、Pterodiscus levis |
| 分类 | 脂鲤目 Characiformes › 胸斧脂鲤科 Gasteropelecidae › Gasteropelecus |
| 水体 | 淡水 |
| 原产地 | 巴西 |
| 成体体长 | 3.5 cm |
| 饲养难度 | 入门 |
| 最小水体 | 72 L |
| 最小缸长 | 80 cm |
| 群居方式 | 群游 |
| 性情 | 温和 |
| 外部数据 | seriouslyfish gasteropelecus-levis;fishbase 10730 |
| 食性 | 肉食 |
| 游动层 | 上层 |
| 特征 | 会跳缸: 是 |
水质参数
| 参数 | 耐受范围 | 最适范围 | 单位 |
|---|---|---|---|
| 水温 | 20–28 | — | °C |
| pH | 5–7.5 | — | — |
| 总硬度 | 1–12 | — | dGH |
概述
银胸斧鱼（Gasteropelecus levis）几乎一直活动于水面或紧贴水面下方，温和却胆怯。初到环境可能敏感，适应后较稳定；防跳、同伴及不被抢食是日常饲养重点。
分布与栖息地
限于巴西帕拉州亚马孙河下游盆地，包括托坎廷斯河和瓜马河下游。主要利用较大森林溪流、河沟和洪泛区湖泊的开阔水面。
饲养环境
水面面积至少约 80 × 30 cm。让浮水植物覆盖相当一部分区域，留下泳道，提供一定水流供其迎流活动。水草缸或沙底、沉木和落叶组成的亚马孙式布局都可。
缸盖必须紧密贴合，它能强力跃出水面。受威胁或觅食时可能暂时下潜到中层，不代表不再需要水面遮蔽。
食性与喂食
自然食物包括昆虫、甲壳动物和蠕虫，昆虫多从水面摄取。初期可能拒绝干粮，通常能逐渐适应，但活饵与冷冻饵应占相当比例，例如红虫、水蚤及预先喂饱的果蝇。
习性与混养
至少六尾，以同伴提供安全感。小型温和脂鲤、短鲷及小型底栖鲶鱼可作为候选，尤其适合使用其他区域的伙伴。不要与抢食强、过于活跃的鱼组合。
雌雄区分
携卵雌鱼通常比雄鱼明显丰满。
补充说明
确切繁殖方式仍不明确，不能把近缘种的推测直接当作本种成功方法。
“银斧鱼”类商品名可能用于多个相近物种，辨认时应结合学名与来源。斧头鱼的离水动作是强力跳跃，并非在空中持续拍鳍飞行；不应因平时少见跳跃而留下缸盖缝隙。
图片
图片来自 SeriouslyFish,版权归各摄影者所有。
English
Overview
Gasteropelecus levis spends nearly all its time at or just beneath the surface. Peaceful but nervous, it can be delicate on arrival before becoming more settled. Cover security, conspecific company, and access to food are central priorities.
Distribution & habitat
It is restricted to the lower Amazon basin in Pará, Brazil, including the lower Tocantins and Guamá. Open areas of larger forest streams and floodplain lakes are typical.
Aquarium setup
Provide at least about 80 × 30 cm of surface area. Floating plants should cover a substantial part while leaving swimming lanes. Some current is appreciated. A planted aquarium or an Amazon-style arrangement with sand, wood, and litter can work.
Fit the lid tightly against powerful leaps. Temporary retreat into midwater when threatened or feeding does not remove the need for surface shelter.
Diet & feeding
Natural foods include insects, crustaceans, and worms, with insects taken mainly at the surface. Dry foods may be rejected initially but are often accepted after acclimation. Keep live and frozen offerings prominent, using bloodworms, water fleas, and well-fed fruit flies.
Behaviour & compatibility
Maintain at least six for security. Small placid tetras, dwarf cichlids, and bottom-dwelling catfishes are possible companions, especially when using other parts of the tank. Avoid boisterous feeding competitors.
Sexual dimorphism
Egg-bearing females are noticeably fuller than males.
Notes
Breeding details remain uncertain. Comparative suggestions involving relatives do not establish a successful method for this species.
Silver-hatchetfish sales names can apply to several similar fishes, so scientific identity and origin matter. Leaving the water involves a powerful jump rather than sustained aerial fin-beating. Rarely seeing this behavior is no reason to leave cover gaps.
来源
- https://www.seriouslyfish.com/species/gasteropelecus-levis(抓取于 2026-10-10)
gasteropelecus-levis · 文件: data/species/gasteropelecus-levis.md · 状态: 草稿