ヌマムツ (Nipponocypris sieboldii)

科: Cyprinidae

ヌマムツは日本に原生する温和な雑食性の淡水魚（コイ科）。飼育難度は中級者向き程度です。

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: 8.8–12.5 cm
最小水槽: 125 L
泳ぐ水層: Upper; surface-oriented; keep 6+
飼育難度: 中級
性格: Peaceful
原産地: 日本

種の概要

Nipponocypris sieboldii, a member of the family Cyprinidae, comes from Japan, where it inhabits clear streams, rivers and still waters. Peaceful and omnivore; quality prepared foods with variety, it grows to 8.8–12.5 cm and adapts well to a properly set-up aquarium in the 18–26 °C range. Other Nipponocypris species in our database include Nipponocypris temminckii, Nipponocypris koreanus.

原生環境

生息地: Clear streams, rivers and still waters
水流: Strong current with heavy aeration
溶存酸素: Demands high dissolved oxygen

レイアウトと設備

底床: Smooth gravel and sand with open floor space
流木・石組: Driftwood, water-worn stones and shelters that mimic the native biotope
水草: Hardy plants on hardscape; keep the floor open

性格・餌・混泳

群泳性: Keep 6+; larger groups settle better
餌: Omnivore; quality prepared foods with variety
おすすめの混泳相手: Amur False Gudgeon — Similar size and water needs
China-Bitterling — Similar size and water needs
Acanthorhodeus chankaensis — Similar size and water needs
混泳しないほうがいい相手: Large aggressive cichlids — Bullying and injury risk
Known fin nippers — Constant stress and fin damage

繁殖と注意点

雌雄の違い: Males are typically slimmer and more intensely colored; females fuller-bodied
繁殖方法: Spawning; condition with rich foods and simulate seasonal changes

よくある質問

ヌマムツは飼育しやすい？

中級者向き。Peaceful。Keep 6+; larger groups settle better。

ヌマムツの適水温と水質は？

適水温 18–26 °C。Community-standard range; verify locally。Standard heater to hold the mid-range steadily。

ヌマムツの大きさと水槽サイズは？

成魚は 8.8–12.5 cm。最低 125 L。

ヌマムツの餌は？

Omnivore; quality prepared foods with variety。Smooth gravel and sand with open floor space上で採餌する性質を活かし、沈む餌も与える。

ヌマムツは混泳できる？

可能。Peaceful。おすすめ：Amur False Gudgeon — Similar size and water needs, China-Bitterling — Similar size and water needs, Acanthorhodeus chankaensis — Similar size and water needs。Large aggressive cichlids — Bullying and injury risk, Known fin nippers — Constant stress and fin damageとの混泳は避ける。

ヌマムツの原産地は？

日本のClear streams, rivers and still watersが生息地。

ヌマムツは飛び出す？

驚くと跳ねる。密閉ふたを。

ヌマムツの繁殖は？

Spawning; condition with rich foods and simulate seasonal changes。Males are typically slimmer and more intensely colored; females fuller-bodied。