Onychostoma elongatum

科: Cyprinidae

Onychostoma elongatum（Onychostoma elongatum）はコイ科に分類される淡水魚で、中国南部の山地渓流に分布する。成魚は約 23.7–34.8 cm、適水温 18–26 °C。

飼育条件

水温
18–26 °C
pH
6.5–7.5
GH硬度
5–15 dGH
成魚の体長
23.7–34.8 cm
最小水槽
500 L
泳ぐ水層
Active throughout the water column
飼育難度
中級
性格
Peaceful; keep with similar-sized calm tankmates
原産地
中国南部の山地渓流

種の概要

A Cyprinidae species native to southern Chinese mountain streams: Onychostoma elongatum lives active throughout the water column over gravel. Peaceful; keep with similar-sized calm tankmates. Adults reach 23.7–34.8 cm. It is one of the aquarium-kept Onychostoma species we profile, alongside Onychostoma barbatulum, Onychostoma angustistomata, Onychostoma gerlachi.

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
Keep in a group of 4–6 for natural behaviour
餌
Omnivore; prepared foods with regular variety
おすすめの混泳相手
  • Robust schooling cyprinids — Add activity without conflict
混泳しないほうがいい相手
  • Much larger predators — Risk at night

繁殖と注意点

雌雄の違い
Males often slimmer and more colourful
繁殖方法
Breeding is straightforward scatter-spawning

よくある質問

Onychostoma elongatumは飼育しやすい？

中級者向き。Peaceful; keep with similar-sized calm tankmates。Keep in a group of 4–6 for natural behaviour。

Onychostoma elongatumの適水温と水質は？

18–26 °C を安定して維持。pH 6.5–7.5、GH 5–15 dGH。

Onychostoma elongatumの大きさと水槽サイズは？

成魚 23.7–34.8 cm 前後。Active throughout the water columnのため 500 L 以上の水槽を推奨。

Onychostoma elongatumの餌は？

Omnivore; prepared foods with regular variety。1日2回の少量給餌が理想的。

Onychostoma elongatumは混泳できる？

Peaceful; keep with similar-sized calm tankmates；Keep in a group of 4–6 for natural behaviour。向いているのはRobust schooling cyprinids — Add activity without conflict。Much larger predators — Risk at nightは不向き。

Onychostoma elongatumの原産地は？

原産地は中国南部の山地渓流。Clear streams and rivers over gravelに生息。Moderate, well-oxygenated current。Appreciates well-oxygenated water。

Onychostoma elongatumは飛び出す？

リスクは低いが、ふたがあると安心。

Onychostoma elongatumの繁殖は？

繁殖：Breeding is straightforward scatter-spawning。Males often slimmer and more colourful。