骑士兵鲶
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Osteogaster eques |
| 别名 | 騎士兵鯰、Corydoras eques |
| 分类 | 鲶形目 Siluriformes › 美鲶科 Callichthyidae › Osteogaster |
| 水体 | 淡水 |
| 原产地 | 巴西 |
| 成体体长 | 5 cm |
| 饲养难度 | 入门 |
| 最小水体 | 81 L |
| 最小缸长 | 90 cm |
| 群居方式 | 群游 |
| 性情 | 温和 |
| 外部数据 | seriouslyfish osteogaster-eques;fishbase 46061 |
| 食性 | 杂食 |
| 繁殖方式 | 附着产卵 |
水质参数
| 参数 | 耐受范围 | 最适范围 | 单位 |
|---|---|---|---|
| 水温 | 20–26 | — | °C |
| pH | 6–8 | — | — |
| 总硬度 | 2–15 | — | dGH |
概述
骑士兵鲶（Osteogaster eques）是温和群居甲鲶，准确身份与产地密切相关。它偏向在接近水面的地方附卵，繁殖布置应提供相应植物支撑。
分布与栖息地
模式地点在巴西亚马逊州科达雅斯，位于特费与马瑙斯之间的索利蒙伊斯主流附近。更广范围仍不清楚，秘鲁出口的相似鱼不能直接视作本种确认记录。
饲养环境
底面积至少约 90 × 30 厘米，细沙较理想，或维持洁净的圆滑砾石。提供遮蔽，繁殖时再加浮水植物。
食性与喂食
杂食，可用下沉干粮配小型活冷冻食物，主动给予多样食谱，不只依赖其他鱼残饵。
习性与混养
至少四至六尾一起饲养，性情温和合群。
雌雄区分
雌鱼一般更大，成熟后更圆、体高更高。
繁殖
可一雌两雄，抱卵后以偏凉水换 50%～70%，并增氧、增加水流。除了玻璃、细叶植物和拖把，尤应提供浮水植物，因为它倾向近水面产卵。产后分离亲鱼与卵，孵化使用原缸水并保持充氧，注意霉卵。通常三至四天孵化，卵黄吸收后可喂微虫或初孵丰年虾；幼鱼需优良水质，薄沙底似有利。
补充说明
秘鲁有外观相近的 CW007 和 CW043，编号不应被当作已确认的本种同义名称。偶尔上浮吞气可辅助呼吸；胸鳍硬棘能刺伤，基部腺体分泌物可能有轻微毒性。
图片
图片来自 SeriouslyFish,版权归各摄影者所有。
English
Overview
Peaceful and social, Osteogaster eques benefits from known provenance when identification matters. Its tendency to place eggs near the surface makes floating vegetation particularly useful in a breeding setup.
Distribution & habitat
The type locality is Codajás on the Solimões main channel in Amazonas, Brazil, between Tefé and Manaus. The wider range is unclear, and similar exported Peruvian fish do not establish confirmed occurrence there.
Aquarium setup
Provide at least a 90 by 30 cm footprint with fine sand or clean rounded gravel. Include shelter, adding floating vegetation for breeding.
Diet & feeding
Offer varied sinking foods and small live or frozen supplements directly. Leftovers alone are inadequate for this omnivore.
Behaviour & compatibility
Maintain at least four to six to support its peaceful, gregarious habits.
Sexual dimorphism
Females generally grow larger and become rounder and deeper-bodied at maturity.
Breeding
Use two males per female and encourage gravid fish with a 50–70% cooler-water change and extra aeration. Alongside glass, fine plants, or mops, provide floating vegetation because eggs tend to be placed near the surface. Separate adults and eggs afterward, incubating in aerated breeding-tank water and monitoring fungus. Hatching usually takes three to four days. Offer small live foods after yolk absorption. Fry require excellent water quality, and thin sand appears helpful.
Notes
Similar Peruvian fishes carry CW007 and CW043, but those codes should not be treated as confirmed synonyms of this species. Occasional surface gulps supplement respiration. Pectoral spines can puncture skin, and associated secretions may be mildly toxic.
来源
- https://www.seriouslyfish.com/species/osteogaster-eques(抓取于 2026-10-10)
osteogaster-eques · 文件: data/species/osteogaster-eques.md · 状态: 草稿