ヤマトヌマエビ (Caridina multidentata)

科: Atyidae

ヤマトヌマエビ（Caridina multidentata）はテナガエビ科の淡水エビ。体長約 4–6 cm、適水温 18–26 °Cで、5 匹以上の群泳がおすすめ。

飼育条件

水温: 18–26 °C
pH: 6–7.5
GH硬度: 4–12 dGH
成魚の体長: 4–6 cm
最小水槽: 40 L
泳ぐ水層: Bottom — constantly working over surfaces
飼育難度: 簡単
性格: Extremely peaceful

種の概要

Caridina multidentata is an Atyidae freshwater shrimp, the famous Amano algae eater. In the aquarium it stays a tireless, peaceful grazer. Plan on 4–6 cm of adult shrimp at 18–26 °C, kept in groups of 5 or more, and pair it with any peaceful community fish.

原生環境

生息地: Cool, clean, well-oxygenated mountain streams
水流: Moderate to strong current
溶存酸素: High oxygen

レイアウトと設備

底床: Fine sand or smooth gravel
流木・石組: Driftwood and stones with a natural algae cover
水草: Hardy plants; will not touch healthy leaves

性格・餌・混泳

群泳性: Groups of 5 or more; adults form loose colonies
餌: Voracious algae eater; supplement with algae wafers
おすすめの混泳相手: Peaceful community fish of any size — Too large to be prey, too peaceful to harm
Freshwater snails — Complementary cleanup crew
混泳しないほうがいい相手: Copper-based medications — Lethal to all invertebrates
Large crayfish and big-mouth cichlids — Will prey on shrimp

繁殖と注意点

雌雄の違い: Females are larger with a dotted line along the back
繁殖方法: Larvae require a brackish/marine phase; rarely bred in home aquaria

よくある質問

ヤマトヌマエビは飼育しやすい？

初心者でも安心。Extremely peaceful。Groups of 5 or more; adults form loose colonies。

ヤマトヌマエビの適水温と水質は？

18–26 °C が目安。急変を避け、Stable 18–26 °C; appreciates slightly cooler water。

ヤマトヌマエビの大きさと水槽サイズは？

成魚は 4–6 cm。最低 40 L。

ヤマトヌマエビの餌は？

Voracious algae eater; supplement with algae wafers。人工飼料に冷凍餌を組み合わせて。

ヤマトヌマエビは混泳できる？

Extremely peaceful。混泳の相手：Peaceful community fish of any size — Too large to be prey, too peaceful to harm, Freshwater snails — Complementary cleanup crew。Copper-based medications — Lethal to all invertebrates, Large crayfish and big-mouth cichlids — Will prey on shrimpは避ける。

ヤマトヌマエビの原産地は？

原産地はJapan and Taiwan — cool mountain streams。Cool, clean, well-oxygenated mountain streamsに生息。Moderate to strong current。High oxygen。

ヤマトヌマエビの繁殖は？

Larvae require a brackish/marine phase; rarely bred in home aquaria。Females are larger with a dotted line along the back。