Dwarf Spotted Danio (Danio nigrofasciatus)

科: Cyprinidae

Dwarf Spotted Danio（Danio nigrofasciatus）はコイ科に分類される淡水魚で、南・東南アジアに分布する。成魚は約 2.3–3.4 cm、適水温 18–24 °C。

飼育条件

水温: 18–24 °C
pH: 6–8
GH硬度: 5–19 dGH
成魚の体長: 2.3–3.4 cm
最小水槽: 25 L
泳ぐ水層: Active throughout the water column
飼育難度: 中級
性格: Peaceful and energetic; shy only when kept too few
原産地: 南・東南アジア

種の概要

A Cyprinidae species native to South & Southeast Asia: Danio nigrofasciatus lives active throughout the water column over gravel. Peaceful and energetic; shy only when kept too few. Adults reach 2.3–3.4 cm. It is one of the aquarium-kept Danio species we profile, alongside Danio margaritatus, Danio rerio, Danio albolineatus.

原生環境

生息地: Clear streams and rivers over gravel
水流: Moderate, well-oxygenated current
溶存酸素: Appreciates well-oxygenated water

レイアウトと設備

底床: Fine gravel and sand
流木・石組: Water-worn stones and driftwood
水草: Hardy rooted plants along the margins

性格・餌・混泳

群泳性: Shoaling; 8–10+ for constant motion and confidence
餌: Omnivore; accepts everything small enough
おすすめの混泳相手: Corydoras and small loaches — Occupy the bottom without fuss
混泳しないほうがいい相手: Large predators — Out-swim fate only so long

繁殖と注意点

雌雄の違い: Males often slimmer and more colourful
繁殖方法: Spawns at dawn over fine plants; eggs fall to the bottom

よくある質問

Dwarf Spotted Danioは飼育しやすい？

中級向き。水質の安定が重要。Peaceful and energetic; shy only when kept too few。Shoaling; 8–10+ for constant motion and confidence。

Dwarf Spotted Danioの適水温と水質は？

18–24 °C が目安。急変を避け、Room temperature to heated, depending on origin。

Dwarf Spotted Danioの大きさと水槽サイズは？

成魚 2.3–3.4 cm 前後。Active throughout the water columnのため 25 L 以上の水槽を推奨。

Dwarf Spotted Danioの餌は？

Omnivore; accepts everything small enough。人工飼料に冷凍餌を組み合わせて。

Dwarf Spotted Danioは混泳できる？

Peaceful and energetic; shy only when kept too few；Shoaling; 8–10+ for constant motion and confidence。向いているのはCorydoras and small loaches — Occupy the bottom without fuss。Large predators — Out-swim fate only so longは不向き。

Dwarf Spotted Danioの原産地は？

南・東南アジアのClear streams and rivers over gravelが生息地。

Dwarf Spotted Danioは飛び出す？

換水・メンテ時はふたを推奨。

Dwarf Spotted Danioの繁殖は？

繁殖：Spawns at dawn over fine plants; eggs fall to the bottom。Males often slimmer and more colourful。