Common Goldfish vs Corydoras

Carassius auratus 与之比较 Corydoras paleatus

Taxonomy & Classification

属性	Common Goldfish	Corydoras
学名	Carassius auratus	Corydoras paleatus
目	Cypriniformes	Siluriformes
科	Cyprinidae	Callichthyidae
Conservation Status	Least Concern	Least Concern

Physical Traits

属性	Common Goldfish	Corydoras
最大体长	45.0 cm	7.0 cm
最大体重	2.0 kg	0.005 kg
体色	Brilliant orange to deep golden-yellow body with a metallic sheen across all scales; domesticated forms range from white, yellow, and red to black and calico bicolor combinations.	Pale olive-gray to greenish body with irregular dark olive to black marbled blotches and spots; a broad dark blotch at the dorsal fin base; belly is cream to white; fins spotted or barred.

Habitat & Environment

属性	Common Goldfish	Corydoras
水质类型	Brackish	Freshwater
栖息水深	0-20m	—
地理分布	Originates from rivers and lakes of eastern China and possibly Korea; domesticated for over 1,000 years. Wild relatives inhabit slow rivers, ponds, and slightly brackish …	Native to the La Plata River system and coastal rivers of southeastern Brazil, Uruguay, and northeastern Argentina. Inhabits shallow streams, flooded meadows, and sandy-bottomed lagoons …
栖息地	Ponds, lakes, slow rivers across East Asia; introduced worldwide. Tolerates wide temperature range (10-30°C) and turbid water. Prefers shallow, vegetated areas with soft substrates. Domestic …	Rivers and streams of the Río de la Plata basin in South America (Brazil, Argentina, Uruguay). Inhabits clear-water streams over sandy and muddy bottoms. Active …

Aquarium Suitability

属性	Common Goldfish	Corydoras
最小水箱尺寸	150 L	40 L
水温	10-24	22-26
pH 范围	6.0-8.0	6.0-8.0
饲养难度	Easy	Easy
性情	Peaceful	Peaceful

钓鱼信息

属性	Common Goldfish	Corydoras
游钓鱼种	是	否
搏鱼评级	—	—
世界纪录	—	—
汞含量	—	—

Cuisine & Edibility

Common Goldfish

Not consumed — a classic ornamental aquarium and pond fish; its vivid color and hardy nature make it one of the world's most popular decorative species.

Corydoras

Not consumed — a small ornamental bottom-dwelling catfish beloved for its peaceful temperament and role as a substrate scavenger in community aquariums.

Species Overview

Common Goldfish

The goldfish was one of the first fish to be domesticated, with selective breeding in China dating back over 1,000 years. Despite common misconceptions, goldfish can live 10-15 years with proper care and require far more space than a small bowl.

Corydoras

The peppered corydoras is a peaceful bottom-dwelling catfish native to South American rivers. It uses its barbels to sift through substrate for food and should be kept in groups of six or more. It can gulp atmospheric air in low-oxygen conditions.