多点兵鲶
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Hoplisoma polystictum |
| 别名 | 多點兵鯰、Corydoras polystictus |
| 分类 | 鲶形目 Siluriformes › 美鲶科 Callichthyidae › Hoplisoma |
| 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 | 41 L |
| 最小缸长 | 45 cm |
| 群居方式 | 群游 |
| 性情 | 温和 |
| 外部数据 | seriouslyfish hoplisoma-polystictum;fishbase 46180 |
| 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 | 20–25 | — | °C |
| pH | 6–7.6 | — | — |
| 总硬度 | 1–15 | — | dGH |
概述
多点兵鲶（Hoplisoma polystictum）是巴拉圭河上游的小型甲鲶，容易与外观相近的种类混淆。其尾柄没有蓝灰色污斑，可与具有该斑的近似鱼区分。
分布与栖息地
分布于巴西马托格罗索州巴拉圭河上游，栖地包括小支流、溪流、淹水森林和沙洲。
饲养环境
小群可参考约 45 × 30 × 30 厘米。细沙、沉木根部和干落叶配较暗光线可提供遮蔽，落叶应及时更新避免腐败；维护良好的水草缸也适合。不要用底滤板，底床脏污会影响触须健康。
食性与喂食
杂食，以下沉颗粒或片剂作基础，辅以水蚤、丰年虾或红虫等活冷冻食物，专门投喂而非只捡残饵。
习性与混养
至少六尾一起饲养，通常更自信活跃。性情温和，避免很大或好斗的伙伴。
雌雄区分
雌鱼通常略大，从上方看更宽圆，抱卵时明显。
繁殖
可一雌两雄，海绵过滤配细叶植物，参考水温 24 °C、酸碱度近中性。抱卵后用偏凉水换约 50%～70% 并增氧。卵分批黏在玻璃等处，产后分离亲鱼与卵，用原缸水充氧孵化、除去霉卵。约三至五天孵化，卵黄吸收后喂微虫或丰年虾无节幼体，薄沙底似较适合育苗。
补充说明
相似的 H. simile 尾柄有蓝灰色污斑，本种没有。偶尔上浮吞气是辅助呼吸，频率异常增高需检查水质；胸鳍棘可挂网或刺伤，应谨慎搬动。
图片
图片来自 SeriouslyFish,版权归各摄影者所有。
English
Overview
A small upper-Paraguay catfish, Hoplisoma polystictum can be confused with similarly patterned relatives. Its unmarked tail base helps distinguish it from the look-alike bearing a blue-gray smudge there.
Distribution & habitat
It occurs in the upper Paraguay system of Mato Grosso, Brazil, occupying small tributaries, creeks, flooded forest, and sandy banks.
Aquarium setup
A tank around 45 by 30 by 30 cm can use sand, roots, and dried leaves under subdued lighting. Replace old leaves before they foul the water. A carefully maintained planted tank is another option. Avoid undergravel filtration and keep the substrate clean to protect the barbels.
Diet & feeding
Use sinking pellets or tablets as the staple, with varied small live and frozen supplements. Feed this omnivore directly.
Behaviour & compatibility
Maintain at least six for confidence and activity, choosing peaceful companions of suitable size.
Sexual dimorphism
Females tend to be slightly larger and broader from above, especially when gravid.
Breeding
Use two males per female with sponge filtration and fine plants around 24 °C and near-neutral pH. A 50–70% cooler-water change with extra aeration can encourage gravid females. Eggs attach to glass or other surfaces. Separate adults and eggs and incubate in aerated breeding-tank water, removing fungal eggs. Hatching takes roughly three to five days; offer small live foods after yolk absorption. A thin sand layer appears helpful for rearing.
Notes
Unlike H. simile, it lacks a blue-gray patch on the caudal peduncle. Occasional surface gulps supplement respiration; a marked increase warrants checking water quality. Pectoral spines can snag nets or puncture skin.
来源
- https://www.seriouslyfish.com/species/hoplisoma-polystictum(抓取于 2026-10-10)
hoplisoma-polystictum · 文件: data/species/hoplisoma-polystictum.md · 状态: 草稿