条纹虾（沼虾） (Palaemon paucidens)

科: Palaemonidae

条纹虾是东亚（日本、朝鲜半岛至华东）河流里常见的沼虾 Palaemon paucidens，成体 5–8 cm，背部有深色断续纵纹。15–26 °C 皮实，杂食性（会吃小鱼苗）；极善攀爬，必须加盖。

饲养参数

水温: 15–26 °C
pH: 6.5–8
GH 硬度: 5–15 dGH
成体体长: 5–7 cm
最小缸体: 60 L
水层: Bottom to middle — patrolling with claws half-raised
饲养难度: 中等
性情: Opportunistic predator — peaceful only with equals
产地: East Asia — Japan, Korea, China, Russia (Amur)

物种概述

Stripe Shrimp is Palaemon paucidens, the familiar river prawn of East Asia — from Japan and Korea through eastern China — where it creeps through weeds in slow rivers and ponds, picking at whatever it finds. It is a true prawn of the family Palaemonidae, larger and longer-armed than the aquarium shrimp most keepers know: adults reach 5-8 cm with slender claws, semi-transparent grey-brown bodies and the broken dark stripe along the back that gives it its name. In East Asia it is better known as food and bait than as an aquarium animal, but it makes a fascinating native-species display: hardy from 15-26 °C, unfussy about water chemistry, and active by day, constantly working the plants and substrate with its claws. It is an opportunistic omnivore — algae, detritus, dead fish and, yes, live fry — so tankmates must be chosen with care. Keep it in cool-water setups with strong cover; it is an expert climber, so a tight lid is mandatory. A group in a China-native biotope tank, perhaps with Chinese medaka and bitterlings, is a uniquely local display no imported shrimp can match.

原生生境

栖息地: Rivers, lakes and ponds with vegetation and cover
水流: Still to gentle current
溶氧: Moderate oxygen; tolerates cool water

造景与硬件

底床: Sand with leaf litter and shelters
硬景观: Stones, driftwood and plant thickets
水草: Robust plants for cover

性格食性与混养

群游性: Solitary or a pair; territorial perches
食性: Omnivore-scavenger; will catch tiny fish and shrimp
推荐混养: Fast-moving native fish (medaka, bitterling) — Too quick and large to be caught
Other cool-water native species — Shares the East-Asian biotope theme
避免混养: Small fry and tiny fish — Will be eaten by this opportunistic prawn
Slow long-finned fish — Nipped fins and stress
Tanks without a lid — Escapes within days

繁殖与备注

雌雄差异: Females carry the eggs and grow broader; males have noticeably longer claws relative to body size.
繁殖方式: Breeds in freshwater in spring and summer. The female carries a few hundred small greenish eggs under her abdomen; hatchlings are planktonic larvae that drift in the water column and rarely survive in a community tank.

常见问题

条纹虾（沼虾）好养吗？

适合有一定经验的玩家。Opportunistic predator — peaceful only with equals；Solitary or a pair; territorial perches。

条纹虾（沼虾）适合什么水温和水质？

保持 15–26 °C 并避免波动，pH 6.5–8、GH 5–15 dGH 即可。

条纹虾（沼虾）能长多大，需要多大的缸？

成体约 5–7 cm；最小缸体 60 L，并留出活动空间。

条纹虾（沼虾）吃什么？

Omnivore-scavenger; will catch tiny fish and shrimp。它在Sand with leaf litter and shelters上自然觅食，投喂可少量多次。

条纹虾（沼虾）能和其他鱼混养吗？

Opportunistic predator — peaceful only with equals；Solitary or a pair; territorial perches。理想混养对象：Fast-moving native fish (medaka, bitterling) — Too quick and large to be caught, Other cool-water native species — Shares the East-Asian biotope theme。需避开Small fry and tiny fish — Will be eaten by this opportunistic prawn, Slow long-finned fish — Nipped fins and stress, Tanks without a lid — Escapes within days。

条纹虾（沼虾）产自哪里？

原生于East Asia — Japan, Korea, China, Russia (Amur)，栖息于Rivers, lakes and ponds with vegetation and cover。Still to gentle current，Moderate oxygen; tolerates cool water。

条纹虾（沼虾）会跳缸吗？

该物种会跳缸——缸盖务必盖紧，换水时尤其注意。

条纹虾（沼虾）怎么繁殖？

人工环境下：Breeds in freshwater in spring and summer. The female carries a few hundred small greenish eggs under her abdomen; hatchlings are planktonic larvae that drift in the water column and rarely survive in a community tank.。Females carry the eggs and grow broader; males have noticeably longer claws relative to body size.。