カワアナゴ (Eleotris oxycephala)

科: Eleotridae

カワアナゴは中国華南の沿岸河川、東南アジアに原生するやや攻撃的な肉食性の淡水魚（エレオトリス科）。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: 13.3–19 cm
最小水槽: 190 L
泳ぐ水層: Bottom; rests and forages low
飼育難度: 中級
性格: Predatory — best kept singly
原産地: 中国华南沿海河川、东南亚

種の概要

A Eleotridae species: Eleotris oxycephala lives bottom; rests and forages low over clear streams, rivers and still waters. Predatory — best kept singly. Adults reach 13.3–19 cm. It is one of the aquarium-kept Eleotris species we profile, alongside Eleotris acanthopoma, Eleotris fusca, Eleotris melanosoma.

原生環境

生息地: Clear streams, rivers and still waters
水流: Moderate flow
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: Solitary, pairs or small groups
餌: Carnivore; quality prepared foods with variety; regular frozen or live foods
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: Small fish and shrimp — Live-prey size

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

カワアナゴは飼育しやすい？

中級向き。水質の安定が重要。Predatory — best kept singly。Solitary, pairs or small groups。

カワアナゴの適水温と水質は？

18–26 °C が目安。急変を避け、Standard heater to hold the mid-range steadily。

カワアナゴの大きさと水槽サイズは？

成魚 13.3–19 cm 前後。Bottom; rests and forages lowのため 190 L 以上の水槽を推奨。

カワアナゴの餌は？

Carnivore; quality prepared foods with variety; regular frozen or live foods。1日2回の少量給餌が理想的。

カワアナゴは混泳できる？

可能。Predatory — best kept singly。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。Small fish and shrimp — Live-prey sizeとの混泳は避ける。

カワアナゴの原産地は？

中国华南沿海河川、东南亚原産。Clear streams, rivers and still waters、Moderate flow。

カワアナゴの繁殖は？

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