キンギョ (Carassius auratus)

科: Cyprinidae

キンギョは中国に原生する温和な雑食性の淡水魚(コイ科)。飼育難度は初心者向き程度です。

飼育条件

水温
18–26 °C
pH
7–8
GH硬度
8–20 dGH
成魚の体長
15–25 cm
最小水槽
80 L
泳ぐ水層
All levels; slow cruiser
飼育難度
中級
性格
Peaceful but boisterous
原産地
China — domesticated from crucian carp over 1,000 years

種の概要

A thousand years of Chinese selective breeding condensed into one fish. Goldfish are hardy but messy: they grow large, dig up plants, and produce heavy waste, so generous water volume and filtration come before ornament.

原生環境

生息地
Ponds and slow waters
水流
Still to gentle
溶存酸素
Appreciates extra aeration

レイアウトと設備

底床
Large smooth gravel — they dig
流木・石組
Avoid sharp décor that tears fins
水草
Hardy or potted; expect casualties

性格・餌・混泳

群泳性
Singles or groups; space decides
餌
Omnivore; sinking pellets prevent bloat
おすすめの混泳相手
  • Other fancy goldfish — Matched pace and temperature
  • White cloud minnow — Cool-water companion
  • Plecos — Effective algae crew
混泳しないほうがいい相手
  • Tropical community fish — Temperature mismatch
  • Delicate plants — Dug up and eaten
  • Small fish — May be eaten as it grows

繁殖と注意点

雌雄の違い
Males develop breeding tubercles on gill covers; females are rounder when full of eggs
繁殖方法
Egg-scatterer over plants at dawn in shallow water; remove parents after spawning.

よくある質問

キンギョは飼育しやすい?

難易度:簡単。Peaceful。

キンギョの適水温と水質は?

0–41 °C を安定して維持。pH 6–8、GH 5–19 dGH。

キンギョの大きさと水槽サイズは?

成魚は 33.6–48 cm。最低 100 L。

キンギョの餌は?

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

キンギョは混泳できる?

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。

キンギョの原産地は?

东亚淡水水系原産。Ponds, marshes and sluggish waters、Moderate flow。

キンギョの繁殖は?

繁殖:Egg-scatterer over fine plants; 春季水温升至 18-20℃ 产卵于水草。繁殖期雄鱼胸鳍与鳃盖出现白色追星。