哈乐昆虾 (Caridina wolterecki)

科: Atyidae

哈乐昆虾是产自苏拉威西古老湖泊（波索湖、马利利湖群）的 Caridina wolterecki，瓷白底色缀红褐色破碎带纹。需要高温硬碱水质：26–30 °C，pH 7.5–8.5，7–12 dGH，高溶氧、极清洁；属进阶 Specialist 物种。

饲养参数

水温: 26–29 °C
pH: 7.5–8.5
GH 硬度: 6–12 dGH
成体体长: 2–2.5 cm
最小缸体: 30 L
水层: Bottom — grazing rock and sponge surfaces
饲养难度: 困难
性情: Very peaceful
产地: Lake Towuti, Sulawesi, Indonesia — endemic

物种概述

Harlequin Shrimp is the strikingly patterned Caridina wolterecki from the ancient lakes of Sulawesi, Indonesia — Lake Poso and the Malili lake system — where it clings to rocks in warm, hard, alkaline water that would kill the soft-water bee shrimp. Its body is porcelain white broken by irregular reddish-brown bands and blotches, a harlequin pattern no other popular shrimp matches. It is a specialist in every sense: 26-30 °C, pH 7.5-8.5 and 7-12 dGH, strong light encouraging the algae it grazes, and excellent oxygenation. In the aquarium it needs a dedicated Sulawesi setup — often escarpment-style rock aquascapes with very clean, well-filtered water — and accepts algae, biofilm and spirulina-based foods. It grows to 2-3 cm, is shy at first but becomes bold in stable conditions, and breeds in freshwater, females carrying 10-20 relatively large eggs. Sensitive to nitrate and to sudden changes, it rewards the specialist with one of the most beautiful patterns in the hobby. Never mix its hard alkaline regime with soft-water caridinas.

原生生境

栖息地: Deep, hot, alkaline crater lake with rocky shores
水流: Gentle current
溶氧: High oxygen

造景与硬件

底床: Crushed coral or sandy rock to buffer alkalinity
硬景观: Rocks and shell gravel with algae cover
水草: Algae-covered rocks instead of demanding plants

性格食性与混养

群游性: Groups of 10 or more
食性: Algae and aufwuchs grazer; spirulina foods
推荐混养: Other Sulawesi lake shrimp — Shared hard alkaline chemistry — the only safe mix
Sulawesi snails (Tylomelania) — Same lake system, same parameters
避免混养: Soft-water Caridina (bee shrimp lines) — Opposite chemistry; one side dies
Copper-based medications — Lethal to all invertebrates
Any nitrate-prone setup — Sulawesi shrimp demand near-zero nitrate

繁殖与备注

雌雄差异: Females are larger and deeper with broader banding; males slimmer with finer lines.
繁殖方式: Breeds in freshwater. The female carries 10-20 relatively large eggs for about four weeks; hatchlings are well-developed. Success depends on rock-solid parameters and clean water rather than any trick.

常见问题

哈乐昆虾好养吗？

只适合资深玩家。Very peaceful；Groups of 10 or more。

哈乐昆虾适合什么水温和水质？

保持 26–29 °C 并避免波动，pH 7.5–8.5、GH 6–12 dGH 即可。

哈乐昆虾能长多大，需要多大的缸？

成体 2–2.5 cm 左右，因其Bottom — grazing rock and sponge surfaces的习性，30 L 以上的缸更合适。

哈乐昆虾吃什么？

Algae and aufwuchs grazer; spirulina foods。建议人工饲料搭配冷冻或活饵，保证多样性。

哈乐昆虾能和其他鱼混养吗？

Very peaceful；Groups of 10 or more。理想混养对象：Other Sulawesi lake shrimp — Shared hard alkaline chemistry — the only safe mix, Sulawesi snails (Tylomelania) — Same lake system, same parameters。需避开Soft-water Caridina (bee shrimp lines) — Opposite chemistry; one side dies, Copper-based medications — Lethal to all invertebrates, Any nitrate-prone setup — Sulawesi shrimp demand near-zero nitrate。

哈乐昆虾产自哪里？

原生于Lake Towuti, Sulawesi, Indonesia — endemic，栖息于Deep, hot, alkaline crater lake with rocky shores。Gentle current，High oxygen。

哈乐昆虾怎么繁殖？

人工环境下：Breeds in freshwater. The female carries 10-20 relatively large eggs for about four weeks; hatchlings are well-developed. Success depends on rock-solid parameters and clean water rather than any trick.。Females are larger and deeper with broader banding; males slimmer with finer lines.。