高体鳑鲏 (Rhodeus ocellatus)

科: Cyprinidae

依赖河蚌产卵的原生鱼,繁殖季体色转为绚丽的玫红与紫罗兰。

饲养参数

水温
14–26 °C
pH
7–8
GH 硬度
8–20 dGH
成体体长
5–6 cm
最小缸体
40 L
水层
Mid-water; short-fin bursts
饲养难度
中等
性情
Peaceful; a true community fish
产地
Eastern & central China — Yangtze and Yellow basins

物种概述

The rosy bitterling is China's living jewel — a small, deep-bodied carp that depends on freshwater mussels to breed. In the breeding season males flush iridescent rose and violet. In the aquarium it is peaceful, adaptable and fascinating, provided a few mussels or substitute spawning sites are offered.

原生生境

栖息地
Slow rivers, ponds and lake margins
水流
Still to gentle
溶氧
Tolerates low oxygen well

造景与硬件

底床
Fine sand; a mussel bed anchors the biotope
硬景观
Leaf litter and empty mussel shells
水草
Fine-leaved plants plus open swimming space

性格食性与混养

群游性
Keep 6+; males display in groups
食性
Omnivore; algae, flakes and small live foods
推荐混养
  • White cloud minnow — Cool-water cousins
  • Rosy barb — Similar size, similar water
  • Nerite snails — Share the same clean-up niche
避免混养
  • Cichlids — Too aggressive
  • Large labyrinth fish — Fin damage
  • Crayfish — Will eat them overnight

繁殖与备注

雌雄差异
Breeding males turn rose-violet with longer fins; females stay silver with a deeper belly
繁殖方式
Mussel spawner. The female deposits eggs inside a freshwater mussel's gills via a long ovipositor; the male fertilizes them at the siphon — fry emerge after 3–4 weeks.

常见问题

鳑鲏没有河蚌能繁殖吗?

基本不能。母鱼需要活体淡水蚌接收鱼卵,幼鱼也要在蚌体内发育。一只健康的河蚌可以服务整群鱼。

用哪种河蚌?

珠蚌科常见池塘蚌,如 Anodonta cygnea 或原生鱼商提供的中国 Sinanodonta 属种类,都是标准选择。蚌必须鲜活健康。

鳑鲏凶吗?

不凶。公鱼会展示和短暂追逐,但很少造成严重伤害,能与其它小型温和冷水鱼混养。

卵在蚌体内待多久?

视水温约三到五周。幼鱼钻出时已是数毫米长的完整小鱼,比多数卵生鱼的仔鱼好养得多。

幼鱼先吃什么?

钻出河蚌后先吃微小活饵——草履虫,接初孵丰年虾——度过快速生长的头几周。