阿尔氏锯脂鲤 · Altuvei
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Serrasalmus altuvei |
| 别名 | 阿爾氏鋸脂鯉 |
| 分类 | 脂鲤目 Characiformes › 锯鲑脂鲤科 Serrasalmidae › Serrasalmus |
| 水体 | 淡水 |
| 成体体长 | 17.3 cm |
| 饲养难度 | 中等 |
| 最小水体 | 243 L |
| 最小缸长 | 120 cm |
| 群居方式 | 独居 |
| 外部数据 | seriouslyfish serrasalmus-altuvei;fishbase 52025 |
| 原产地 | 委内瑞拉境内的奥里诺科河流域 |
| 食性 | 肉食 |
| 特征 | 吃小鱼: 是 |
水质参数
| 参数 | 耐受范围 | 最适范围 | 单位 |
|---|---|---|---|
| 总硬度 | 2–15 | — | dGH |
概述
阿尔氏锯脂鲤（Serrasalmus altuvei）是以鱼鳍和小鱼为食的独居食人鱼类。它在贸易中少见，幼鱼与近似种难分，适合有经验的爱好者单条专养。
分布与栖息地
原生于委内瑞拉境内的奥里诺科河流域，栖地包括热带草原中清澈、日照充足且水草繁盛的水域。采集观察显示分布并不普遍，通常单独出现。
饲养环境
单条底面积至少约 120 × 45 cm。密植区、树根、枝条、浮水植物及暗底床可形成遮蔽，过分空旷的缸可能使它紧张。
维持很高的水质水平和适度水流，可用外滤或底滤将回水沿缸长方向输送，让水面有轻微扰动。合理布置后不一定需要额外造浪。每周换水最多约一半；加热棒尽量外置，或加坚固保护罩，防止鱼咬坏设备。
食性与喂食
天然主要摄食其他鱼的鳍及小鱼，本种是否吃果实、种子尚未确认。多数能逐渐接受非活饵，但新到鱼或大个体可能暂时拒食，需要留意适应情况。
幼鱼可吃红虫、水蚯蚓、丰年虾和碎虾肉，成鱼可喂较大的贝肉、虾、鱿鱼块、小鱼肉或蚯蚓。成年后通常每周两至三餐即可。不要大量使用牛心、鸡肉等陆生肉类，也不必用活饵鱼承担传病风险。
习性与混养
不适合与其他鱼混养；与硬甲鲶鱼共存的零散经验也不应作为长期保证。它不是天生群居鱼，同种之间可能一直争斗到只剩一条，因此以单养为原则。
补充说明
幼鱼体侧斑点据说较集中在上半部，可辅助与某些近似种比较，但头背轮廓及身体比例也需一并观察。“蓝色食人鱼”等贸易称呼不能可靠区分种类。维护时仍需注意牙齿，不要把胆小误认为不会防御性咬人。
English
Overview
Serrasalmus altuvei is a solitary piranha relative that feeds on fins and small fishes. It is uncommon in commerce, and juveniles are difficult to distinguish from similar species. Individual housing by an experienced keeper is appropriate.
Distribution & habitat
It is native to the Venezuelan Orinoco basin. Habitats include clear, sunny, plant-rich waters of the tropical grasslands. Collector observations suggest scattered occurrence, usually as single fish.
Aquarium setup
A single specimen needs a footprint around 120 × 45 cm or larger. Dense planting, roots, branches, floating cover, and a dark bottom provide reassuring shelter. A very bare tank can increase nervousness.
Maintain excellent water quality and moderate current. External filtration or a sump can return water along the aquarium's length while gently disturbing the surface. Extra circulation pumps are not always necessary when the layout works well. Replace up to about half the water weekly. Keep heaters external where possible, or use a strong guard against equipment damage.
Diet & feeding
Fins and smaller fishes are the main wild foods. Consumption of fruits or seeds has not been established for this species. Most individuals gradually accept nonliving food, but large or newly transported fish may initially refuse offerings and need close observation during adjustment.
Young can receive worms, brine shrimp, and chopped shrimp. Adults take larger shellfish portions, shrimp, squid pieces, fish flesh, and earthworms. Two or three weekly meals usually suffice after maturity. Avoid large amounts of terrestrial meats and unnecessary feeder fish with their disease risks.
Behaviour & compatibility
Other fishes are unsuitable companions. Scattered reports of coexistence with armored catfishes do not establish a dependable long-term combination. It is not naturally social, and conspecific fighting may continue until only one remains. House it alone.
Notes
Juvenile spotting is reportedly concentrated more on the upper body than in certain relatives, but head profile and body proportions also need comparison. Blue-piranha trade labels do not reliably identify the species. Its shy nature does not remove the need to avoid a defensive bite during maintenance.
来源
- https://www.seriouslyfish.com/species/serrasalmus-altuvei(抓取于 2026-10-10)
serrasalmus-altuvei · 文件: data/species/serrasalmus-altuvei.md · 状态: 草稿