チェリーシュリンプ (Neocaridina davidi)

飼育条件

水温

18–26 °C

pH

6.5–8

GH硬度

6–15 dGH

成魚の体長

2–2.5 cm

最小水槽

20 L

泳ぐ水層

Bottom — grazing plants and hardscape

飼育難度

簡単

性格

Extremely peaceful

種の概要

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.

原生環境

生息地

Any stable freshwater community aquarium

水流

Gentle current

溶存酸素

Moderate oxygen

レイアウトと設備

底床

Fine inert gravel or shrimp-safe sand

流木・石組

Java moss and driftwood for grazing

水草

Dense moss and fine-leaf plants

性格・餌・混泳

群泳性

Groups of 10 or more

餌

Algae and biofilm grazer; color foods keep hues intense

おすすめの混泳相手

• 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

混泳しないほうがいい相手

• 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

繁殖と注意点

雌雄の違い

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.

繁殖方法

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.

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