古氏锯脂鲤 · Goulding's Piranha
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Serrasalmus gouldingi |
| 别名 | 古氏鋸脂鯉 |
| 分类 | 脂鲤目 Characiformes › 锯鲑脂鲤科 Serrasalmidae › Serrasalmus |
| 水体 | 淡水 |
| 原产地 | 巴西内格罗河流域及委内瑞拉卡西基亚雷水系 |
| 成体体长 | 28 cm |
| 饲养难度 | 中等 |
| 最小水体 | 540 L |
| 最小缸长 | 150 cm |
| 群居方式 | 独居 |
| 外部数据 | seriouslyfish serrasalmus-gouldingi;fishbase 51991 |
水质参数
| 参数 | 耐受范围 | 最适范围 | 单位 |
|---|---|---|---|
| 水温 | 24–28 | — | °C |
| pH | 4–7 | — | — |
| 总硬度 | 1–10 | — | dGH |
概述
古氏锯脂鲤（Serrasalmus gouldingi）身体高而近菱形，眼睛可呈蓝色或铜色，体侧有纵向延长的暗斑。它来自酸性、低矿物质的黑水环境，宜单条饲养。
分布与栖息地
广布巴西北部内格罗河流域，也见于委内瑞拉卡西基亚雷水系。奥里诺科河上游的出现仍未确认，内格罗河河口附近的范围也有不确定性。
自然河水受单宁染成褐色，呈酸性且矿物质含量低，不能只把“黑水”理解为视觉颜色。
饲养环境
单条至少约 150 × 60 cm 底面积。开阔空间和水质比装饰复杂度重要，但完全裸露的缸可能使鱼紧张，可用沉木及浮水植物提供遮蔽。
同属鱼排泄负担较大，需要大容量外滤或底滤。加热设备宜外置，或使用结实护罩。每周换水约三至五成，维护与捞取时防止被咬。
食性与喂食
同属鱼会机会性摄食小鱼、鱼肉及鱼鳍。缸内幼鱼可喂红虫、小蚯蚓和碎贝肉，成鱼可喂鱼肉条、虾及较大蚯蚓。
不宜使用牛心、鸡肉等陆生动物肉类，也无需喂活饵鱼，以免带入寄生虫或疾病。
习性与混养
以单条专养为宜，不把它当作普通混养或群游鱼安排。
补充说明
纵长体斑、尾鳍基部黑带以及缺少肩斑，可配合高身轮廓、钝吻及眼色帮助鉴别。“蓝虎食人鱼”等商品名并不能确保所售鱼的种类。
图片
图片来自 SeriouslyFish,版权归各摄影者所有。
English
Overview
Serrasalmus gouldingi has a deep, diamond-shaped body, bluish or coppery eyes, and vertically extended dark flank spots. It comes from acidic, mineral-poor blackwater environments and is best maintained individually.
Distribution & habitat
It is widespread in Brazil's Negro drainage and also occurs in Venezuela's Casiquiare system. Presence in the upper Orinoco is unconfirmed, and occurrence toward the Negro's mouth remains uncertain.
Native rivers are brown from tannins, acidic, and low in dissolved minerals. Blackwater therefore describes more than the water's visible color.
Aquarium setup
A single fish requires a footprint around 150 × 60 cm or more. Open room and water quality are more important than decorative complexity. Completely exposed tanks may encourage nervousness, so provide some wood or floating cover.
Related fishes create a considerable waste load, making large external filtration or a sump appropriate. Keep heating equipment external where possible, or use a strong guard. Replace approximately 30–50% of the water weekly and avoid contact with the teeth during maintenance.
Diet & feeding
Members of the genus opportunistically consume small fishes, flesh, and fins. Aquarium juveniles can receive worms and chopped shellfish; adults accept fish strips, shrimp, and larger earthworms.
Terrestrial meats such as beef heart or chicken are unsuitable routine foods. Live feeder fish are unnecessary and can introduce parasites or disease.
Behaviour & compatibility
House one specimen in a dedicated setup rather than treating it as a conventional community or schooling fish.
Notes
Long dark spots, a blackish band at the tail base, and the absence of a shoulder blotch aid identification alongside the deep body, blunt snout, and eye color. A blue-tiger piranha label does not by itself establish species identity.
来源
- https://www.seriouslyfish.com/species/serrasalmus-gouldingi(抓取于 2026-10-10)
serrasalmus-gouldingi · 文件: data/species/serrasalmus-gouldingi.md · 状态: 草稿