コヒガイ (Sarcocheilichthys parvus)

科: Cyprinidae

コヒガイ（Sarcocheilichthys parvus）はコイ科に分類される淡水魚で、中国に分布する。成魚は約 12–17.6 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: 12–17.6 cm
最小水槽: 372 L
泳ぐ水層: Active throughout the water column
飼育難度: 中級
性格: Calm, undemanding and well-suited to community life
原産地: 中国

種の概要

Sarcocheilichthys parvus, a member of the family Cyprinidae, comes from China, where it inhabits clear streams and rivers over gravel. Calm, undemanding and well-suited to community life and unfussy omnivore; varied diet keeps condition, it grows to 12–17.6 cm and adapts well to a properly set-up aquarium in the 18–26 °C range. Other Sarcocheilichthys species in our database include Sarcocheilichthys nigripinnis, Sarcocheilichthys sinensis, Sarcocheilichthys variegatus.

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: Small groups recommended
餌: Unfussy omnivore; varied diet keeps condition
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: Spawns freely; remove parents to save the eggs

よくある質問

コヒガイは飼育しやすい？

中級向き。水質の安定が重要。Calm, undemanding and well-suited to community life。Small groups recommended。

コヒガイの適水温と水質は？

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

コヒガイの大きさと水槽サイズは？

成魚は 12–17.6 cm。最低 372 L。

コヒガイの餌は？

Unfussy omnivore; varied diet keeps condition。1日2回の少量給餌が理想的。

コヒガイは混泳できる？

Calm, undemanding and well-suited to community life；Small groups recommended。向いているのはRobust schooling cyprinids — Add activity without conflict。Much larger predators — Risk at nightは不向き。

コヒガイの原産地は？

原産地は中国。Clear streams and rivers over gravelに生息。Moderate, well-oxygenated current。Appreciates well-oxygenated water。

コヒガイは飛び出す？

換水・メンテ時はふたを推奨。

コヒガイの繁殖は？

繁殖：Spawns freely; remove parents to save the eggs。Males often slimmer and more colourful。