格里氏锯脂鲤 · Géry's Pirambeba
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Serrasalmus geryi |
| 别名 | 格里氏鋸脂鯉 |
| 分类 | 脂鲤目 Characiformes › 锯鲑脂鲤科 Serrasalmidae › Serrasalmus |
| 水体 | 淡水 |
| 成体体长 | 18.1 cm |
| 饲养难度 | 中等 |
| 最小水体 | 432 L |
| 最小缸长 | 120 cm |
| 外部数据 | seriouslyfish serrasalmus-geryi;fishbase 53363 |
| 原产地 | 巴西阿拉瓜亚河及托坎廷斯河流域 |
| 食性 | 肉食 |
水质参数
| 参数 | 耐受范围 | 最适范围 | 单位 |
|---|---|---|---|
| 水温 | 22–29 | — | °C |
| 总硬度 | 5–12 | — | dGH |
概述
格里氏锯脂鲤（Serrasalmus geryi）由下颌延伸至身体背面的紫色线纹很有辨识度。它会摄食其他鱼的鳍鳞，是否能长期群养仍有争议，单条专养是较稳妥的安排。
分布与栖息地
来自巴西阿拉瓜亚河和托坎廷斯河流域。托坎廷斯河主河道常含大量悬浮物，本种通常在较深水域活动，繁殖时利用浅水区。
饲养环境
单条至少约 120 × 60 cm 底面积。用砂底、大块沉木、树根和枝条形成部分遮蔽，同时保持开阔空间，光线偏弱至中等。可以尝试水草，但有被啃食的可能。
维持充分供氧和很高的水质水平。外滤或底滤回水沿缸长方向布置，让水面轻微扰动，必要时增加循环设备。每周换水最多约一半，加热棒宜外置或配坚固护罩。
食性与喂食
已知天然摄食其他鱼的鳍和鳞，可能也吃小鱼、昆虫；本种吃果实种子的说法未获确认。大多数能逐步接受非活饵，但新到或较大的鱼可能暂时拒食。
幼鱼可用红虫、水蚯蚓、丰年虾和碎虾肉，成鱼可用贝肉、虾、鱿鱼块、鱼肉及蚯蚓，成年后每周两至三餐可作参考。避免大量陆生动物肉类，也无需用活饵鱼承担引入疾病的风险。
习性与混养
不推荐与其他鱼同养。有人曾较长时间维持同种群体，但也有对其不稳定性和严重损伤风险的担忧，这不能概括为容易群养。普通饲养安排应以一条为主。
繁殖
有缸内繁殖传闻，但细节有限。野外繁殖具有季节性，据称会在底床吹出浅坑后产卵；这些描述仍带不确定性，不能作为经过验证的人工繁殖流程。
补充说明
紫线、反光鳞片及深橙红色眼睛有助于辨认，但市场也出现过近似种冒用此名。商品名不应替代外观确认。
图片
图片来自 SeriouslyFish,版权归各摄影者所有。
English
Overview
Serrasalmus geryi has a distinctive violet line extending from the lower jaw over the upper body. It consumes fins and scales from other fishes. Whether groups can remain stable is disputed, making a single-specimen setup the more reliable choice.
Distribution & habitat
It occurs in Brazil's Araguaia and Tocantins drainages. The main Tocantins often carries substantial suspended material. This fish generally uses deeper water, moving into shallows for reproduction.
Aquarium setup
Allow a footprint around 120 × 60 cm or larger for one fish. Sand and substantial wood can provide partial shelter without eliminating open space. Use subdued to moderate illumination. Plants can be attempted, but may be bitten.
Supply ample oxygen and maintain excellent water quality. Arrange external-filter or sump returns along the tank's length to disturb the surface gently, adding circulation if necessary. Replace up to about half the water weekly. External heating or a sturdy guard reduces equipment damage.
Diet & feeding
Fin and scale consumption is established, while small fishes and insects are probable additional prey. Fruit and seed eating remains unconfirmed for this species. Most individuals gradually accept nonliving foods, though newly transported or larger fish may initially refuse them.
Young accept worms, brine shrimp, and chopped shrimp. Adults can receive shellfish, shrimp, squid, fish flesh, and earthworms. Two or three weekly meals provide a reference after maturity. Avoid large quantities of terrestrial meat and unnecessary feeder fish with their disease risks.
Behaviour & compatibility
Mixed housing is not recommended. Some keepers have maintained conspecific groups for substantial periods, but others emphasize unpredictability and injury. These accounts do not establish easy or dependable group care. Ordinary arrangements should favor one specimen.
Breeding
Aquarium spawning has been rumored, with few details. Wild reproduction is seasonal, and fish reportedly blow a shallow depression in the substrate for eggs. These qualified accounts should not be presented as a validated captive protocol.
Notes
The violet line, reflective scales, and deep orange-red eyes aid recognition. Similar species have also been sold under this name, so a label should not replace visual assessment.
来源
- https://www.seriouslyfish.com/species/serrasalmus-geryi(抓取于 2026-10-10)
serrasalmus-geryi · 文件: data/species/serrasalmus-geryi.md · 状态: 草稿