樱花虾 (Neocaridina davidi)

科: Atyidae

樱花虾是 Neocaridina davidi 最经典的浅红选育品系,也是最适合新手的观赏虾。成体约 2–2.5 cm,18–26 °C 下几乎任何水质稳定的淡水缸都能饲养,无需汽水环境即可在缸内持续自然繁殖。

饲养参数

水温
18–26 °C
pH
6.5–8
GH 硬度
6–15 dGH
成体体长
2–2.5 cm
最小缸体
20 L
水层
Bottom — grazing plants and hardscape
饲养难度
容易
性情
Extremely peaceful
产地
Selective-bred form of the East Asian Neocaridina

物种概述

Sakura Cherry Shrimp is the most popular color morph of Neocaridina davidi, the hardy East Asian atyid that aquarists in Taiwan and Japan spent two decades selecting from wild stock for ever-deeper red. Compared with the original wild-type cherry, the Sakura grade shows an even, translucent pink-red over the whole body with a darker cherry saddle on the back. It reaches 2-2.5 cm, grazes algae and biofilm all day, and tolerates 18-26 °C across a wide pH and hardness range, which makes it the standard starter shrimp and a genuinely useful cleanup crew in planted community tanks. It breeds readily in pure freshwater: the female carries 20-30 green eggs under her abdomen for about three weeks, and the hatchlings emerge as miniature adults needing no special food beyond fine powder and the biofilm of a mature tank. Keep ten or more for stable groups, avoid copper medication, and provide dense moss so the young survive alongside small fish.

原生生境

栖息地
Any stable freshwater community aquarium
水流
Gentle current
溶氧
Moderate oxygen

造景与硬件

底床
Fine inert gravel or shrimp-safe sand
硬景观
Java moss and driftwood for grazing
水草
Dense moss and fine-leaf plants

性格食性与混养

群游性
Groups of 10 or more
食性
Algae and biofilm grazer; color foods keep hues intense
推荐混养
  • Other Neocaridina color morphs — Interbreed freely — keep one color per tank for pure lines
  • Small rasboras, tetras and ricefish — Ignore adult shrimp; shrimplets need moss cover
  • Otocinclus catfish — Perfect algae-eating companion, same gentle temperament
  • Nerite and small freshwater snails — Share the cleanup crew role, no competition
避免混养
  • Large crayfish and big-mouth cichlids — Will prey on shrimp of any size
  • Copper-based medications — Lethal to all invertebrates — read labels before treatment
  • Pesticide-treated plants — Residual insecticides wipe out an entire colony

繁殖与备注

雌雄差异
Females are larger, deeper-bodied and far more colorful, with a rounded underbelly and a visible saddle of developing eggs; males stay smaller, slimmer and almost transparent pink.
繁殖方式
Breeds prolifically in pure freshwater. The female molts, releases pheromones, then carries 20-30 green eggs under her swimmerets for about three weeks; hatchlings are fully formed miniature shrimp. No larval stage and no salt needed — a mature, mossy tank produces new batches monthly.

常见问题

樱花虾一次养多少只合适?

10–15 只。虾的群居是安静式的——更大的群体刮食更自信、体色更好、建立繁殖也更快,孤零零一对则长期缩在角落。

为什么我的樱花虾变褐或褪色?

两个常见原因:血统混杂(与其他米虾色系杂交,逐代漂回野生褐色);或高温、高硝酸盐造成的压力。保持色系单一、水温不超过 26 °C、硝酸盐低于 20 mg/L。

樱花虾能和斗鱼或金鱼混养吗?

成虾通常能在草缸里与温顺的斗鱼共存,但幼虾会被吃掉。金鱼和任何大嘴鱼连成虾也吃。想养大族群,只能设专用虾缸。

樱花虾需要加热棒吗?

一般不需要。它们在 18–26 °C 之间都很舒适,涵盖绝大多数家庭的室温全年波动。稳定比精确数字更重要——远离窗边或暖气旁那种昼夜温差大的位置。

新买的虾为什么到家就死?

几乎都是过水冲击或缸没养熟。新虾用滴流过水一小时,温度对齐,并在下虾前确认氨和亚硝酸盐为零。新入缸的虾头一两天躲藏拒食是正常的,不是病。