桑切氏锯脂鲤 · Sanchez's Piranha
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Serrasalmus sanchezi |
| 别名 | 桑切氏鋸脂鯉 |
| 分类 | 脂鲤目 Characiformes › 锯鲑脂鲤科 Serrasalmidae › Serrasalmus |
| 水体 | 淡水 |
| 成体体长 | 11.4 cm |
| 饲养难度 | 中等 |
| 最小水体 | 108 L |
| 最小缸长 | 120 cm |
| 外部数据 | seriouslyfish serrasalmus-sanchezi;fishbase 51194 |
| 原产地 | 秘鲁，包括乌卡亚利河、伊塔伊河和帕卡亚河 |
| 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 |
|---|---|---|---|
| 水温 | 24–28 | — | °C |
| 总硬度 | 5–15 | — | dGH |
概述
桑切氏锯脂鲤（Serrasalmus sanchezi）是体形较小、喉部常带红色的食人鱼类。它会吃鱼鳍和小鱼，尽管偶有长期群养经验，单条专养仍是较稳妥的选择。
分布与栖息地
原生于秘鲁，记录包括乌卡亚利河、伊塔伊河及帕卡亚河。生活在河流、水潭和溪流中，似乎偏好有浓密岸边或水下植物的阴影地带。
饲养环境
单条底面积至少约 120 × 30 cm。可用暗色底床、树根、枝条、密植区和浮水植物形成遮蔽，过度裸露的环境可能令它紧张。
保持很高的水质水平和适度水流，外滤或底滤沿缸长回水，让水面有轻微扰动；布局适当时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，或用坚固护罩防咬。
食性与喂食
天然主要摄食其他鱼的鳍和小鱼，本种是否吃果实种子尚未确认。大多能逐渐接受非活饵，但新到个体可能暂时拒食。
幼鱼可用红虫、水蚯蚓、丰年虾及碎虾肉，成鱼可换成适口贝肉、虾、鱼肉、鱿鱼块和蚯蚓，成年后每周两至三餐可作参考。避免大量牛心、鸡肉等陆生肉类，也无需冒引入寄生虫的风险使用活饵鱼。
习性与混养
不适合普通混养。对同种群养的看法有分歧：有人保持过较大的群体，也有人强调封闭环境中的不可预测性和受伤风险。没有充足经验及空间时，应坚持单条饲养。
补充说明
红喉容易与近似鱼混淆，腹部锯齿状棱鳞排列不规则被认为是较有用的辨认线索。所谓“紫色”型究竟是地理型还是成年颜色变化也未厘清，不应仅凭商品名确定身份。
English
Overview
Serrasalmus sanchezi is a relatively small piranha with a commonly reddish throat. It consumes fins and smaller fishes. Despite occasional accounts of long-term group maintenance, a single-specimen aquarium remains the more dependable arrangement.
Distribution & habitat
It is native to Peru, with records from the Ucayali, Itayi, and Pacaya rivers. Rivers, pools, and creeks are occupied, apparently with a preference for shaded places containing dense marginal or submerged plants.
Aquarium setup
A single fish needs a footprint around 120 × 30 cm or larger. Dark substrate, roots, branches, planted areas, and floating cover create reassuring shelter. Overly exposed tanks can encourage nervousness.
Maintain excellent water quality and moderate current. External-filter or sump returns can run along the aquarium's length and gently disturb the surface. Additional pumps are not always needed when circulation is effective. Replace up to roughly half the water weekly. Locate heaters externally where possible or fit a sturdy guard.
Diet & feeding
Fins and small fishes are the main natural foods; fruit and seed consumption remains unconfirmed for this species. Most fish gradually accept nonliving offerings, though new arrivals may initially refuse them.
Young can receive worms, brine shrimp, and chopped shrimp. Adults take suitably sized shellfish, shrimp, fish flesh, squid, and earthworms. Two or three weekly meals provide a reference after maturity. Avoid large amounts of terrestrial meat and unnecessary feeder fish with their parasite risks.
Behaviour & compatibility
It is unsuitable for an ordinary mixed community. Group maintenance remains disputed: some aquarists have kept substantial groups, while others emphasize unpredictability and injury in confined conditions. Without extensive experience and adequate space, maintain one fish.
Notes
A red throat can cause confusion with other species. Irregularly arranged abdominal serrations are considered a more useful clue. It is also unclear whether purple trade forms represent geographic variants or mature coloration, so a commercial label alone is inconclusive.
来源
- https://www.seriouslyfish.com/species/serrasalmus-sanchezi(抓取于 2026-10-10)
serrasalmus-sanchezi · 文件: data/species/serrasalmus-sanchezi.md · 状态: 草稿