ニッポンバラタナゴ (Rhodeus smithii)

科: Cyprinidae

ニッポンバラタナゴ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: 10–25 °C
pH: 6.8–7.8
GH硬度: 5–15 dGH
成魚の体長: 4.5–6.5 cm
最小水槽: 65 L
泳ぐ水層: Mid-water swimmer; keep 6+
飼育難度: 中級
性格: Peaceful
原産地: 日本

種の概要

Rhodeus smithii, 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 4.5–6.5 cm and adapts well to a properly set-up aquarium in the 10–25 °C range. Other Rhodeus species in our database include Rhodeus fangi, Rhodeus lighti, Rhodeus ocellatus.

原生環境

生息地: Clear streams, rivers and still waters
水流: Still to very gentle water
溶存酸素: Average oxygen needs

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: Egg-scatterer over fine plants; condition with rich foods and simulate seasonal changes

よくある質問

ニッポンバラタナゴは飼育しやすい？

中級向き。水質の安定が重要。Peaceful。Keep 6+; larger groups settle better。

ニッポンバラタナゴの適水温と水質は？

10–25 °C を安定して維持。pH 6.8–7.8、GH 5–15 dGH。

ニッポンバラタナゴの大きさと水槽サイズは？

成魚は 4.5–6.5 cm。最低 65 L。

ニッポンバラタナゴの餌は？

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。

ニッポンバラタナゴは混泳できる？

Peaceful。混泳の相手：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は避ける。

ニッポンバラタナゴの原産地は？

原産地は日本。Clear streams, rivers and still watersに生息。Still to very gentle water。Average oxygen needs。

ニッポンバラタナゴの繁殖は？

Egg-scatterer over fine plants; condition with rich foods and simulate seasonal changes。Males are typically slimmer and more intensely colored; females fuller-bodied。