オレンジチェリーシュリンプ (Neocaridina davidi)

科: Atyidae

オレンジシュリンプ(サンキスト)は Neocaridina davidi の濃いオレンジ色系統。体長約2~2.5cm、18~26℃の安定した淡水水槽でよく育ち繁殖も容易ですが、色違いを混ぜると返祖するので一色で飼いましょう。

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

Orange Shrimp, known in Asia as the Sunkist morph, is a bright tangerine selection of Neocaridina davidi bred from the same Taiwanese and Japanese lines that produced the red cherry. The orange grade is surprisingly recent — dedicated orange lines only stabilized in the early 2000s — and good specimens show a saturated, opaque orange over the entire body with no wild-type banding. It reaches 2-2.5 cm, grazes biofilm continuously, and shares the species' famous tolerance: 18-26 °C, pH 6.5-8.0 and moderate hardness all suit it. In the aquarium it is an active daytime cleaner that works moss, wood and leaf litter, and it breeds as readily as the red form — females carry 20-30 eggs and the young hatch as miniature adults. A group of ten or more will establish quickly; just keep colors separated, because all N. davidi morphs interbreed and mixed colonies drift back toward the wild brown form within a few generations.

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 davidi morphs — Interbreed — keep one color per tank for pure lines
  • Small peaceful community fish — Adults survive; provide moss for shrimplets
  • Otocinclus and small plecos — Peaceful algae crew with identical water needs
  • Freshwater snails — Complementary cleanup, no aggression
混泳しないほうがいい相手
  • Copper-based medications — Lethal to all invertebrates
  • Large-mouthed fish — Angelfish, gouramis and cichlids will eat shrimp
  • Different N. davidi colors — Cross-breeding produces drab wild-type offspring

繁殖と注意点

雌雄の違い
Females grow larger and deeper with a bright orange saddle visible before spawning; males are slimmer, smaller and noticeably paler.
繁殖方法
Breeds continuously in freshwater. The female molts, releases pheromones to attract males, then carries 20-30 orange-green eggs under her abdomen for roughly three weeks. Free-swimming larval stage absent — hatchlings are miniature adults feeding on biofilm and fine powder.

よくある質問

オレンジチェリーシュリンプは飼育しやすい?

飼育しやすい初心者向き。Extremely peaceful。Groups of 10 or more。

オレンジチェリーシュリンプの適水温と水質は?

18–26 °C が目安。急変を避け、Stable 18–26 °C; very tolerant of water chemistry。

オレンジチェリーシュリンプの大きさと水槽サイズは?

成魚 2–2.5 cm 前後。Bottom — grazing plants and hardscapeのため 20 L 以上の水槽を推奨。

オレンジチェリーシュリンプの餌は?

Algae and biofilm grazer; color foods keep hues intense。Fine inert gravel or shrimp-safe sand上で採餌する性質を活かし、沈む餌も与える。

オレンジチェリーシュリンプは混泳できる?

Extremely peaceful;Groups of 10 or more。向いているのはOther Neocaridina davidi morphs — Interbreed — keep one color per tank for pure lines, Small peaceful community fish — Adults survive; provide moss for shrimplets, Otocinclus and small plecos — Peaceful algae crew with identical water needs。Copper-based medications — Lethal to all invertebrates, Large-mouthed fish — Angelfish, gouramis and cichlids will eat shrimp, Different N. davidi colors — Cross-breeding produces drab wild-type offspringは不向き。

オレンジチェリーシュリンプの原産地は?

原産地はSelective-bred form of the East Asian Neocaridina。Any stable freshwater community aquariumに生息。Gentle current。Moderate oxygen。

オレンジチェリーシュリンプの繁殖は?

繁殖:Breeds continuously in freshwater. The female molts, releases pheromones to attract males, then carries 20-30 orange-green eggs under her abdomen for roughly three weeks. Free-swimming larval stage absent — hatchlings are miniature adults feeding on biofilm and fine powder.。Females grow larger and deeper with a bright orange saddle visible before spawning; males are slimmer, smaller and noticeably paler.。