Pez rojo vs Oscar

Carassius auratus comparado con Astronotus ocellatus

Taxonomy & Classification

Atributo	Pez rojo	Oscar
Nombre Científico	Carassius auratus	Astronotus ocellatus
Orden	Cypriniformes	Cichliformes
Familia	Cyprinidae	Cichlidae
Conservation Status	Least Concern	Least Concern

Physical Traits

Atributo	Pez rojo	Oscar
Longitud Máxima	45,0 cm	45,0 cm
Peso Máximo	2,0 kg	1,6 kg
Color	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.	Dark olive-brown to blackish body with irregular wavy orange-red markings forming a marbled or reticulated pattern; prominent black ocellus with orange ring at the upper tail base.

Habitat & Environment

Atributo	Pez rojo	Oscar
Tipo de Agua	Brackish	Freshwater
Rango de Profundidad	0-20m	—
Distribución Geográfica	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 Amazon and Orinoco river basins in South America, including Peru, Colombia, and Brazil. Inhabits slow, deep, turbid rivers, flooded forests, and large …
Hábitat	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 …	Slow-moving rivers and floodplains of the Amazon and Orinoco basins, South America. Warm, murky water (22-28°C, pH 6-8). Inhabits areas with submerged logs and dense …

Aquarium Suitability

Atributo	Pez rojo	Oscar
Tamaño Mínimo del Acuario	150 L	280 L
Temperatura	10-24	22-25
Rango de pH	6.0-8.0	6.0-8.0
Nivel de Cuidado	Easy	Moderate
Temperamento	Peaceful	Aggressive

Información de Pesca

Atributo	Pez rojo	Oscar
Pez de Pesca Deportiva	Sí	Sí
Clasificación de Pelea	—	—
Récord Mundial	—	—
Nivel de Mercurio	—	—

Cuisine & Edibility

Pez rojo

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.

Oscar

Not consumed — popular ornamental cichlid kept for its bold patterning and personality; occasionally eaten in parts of South America but primarily an aquarium species.

Species Overview

Pez rojo

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.

Oscar

The oscar is a large, intelligent cichlid native to the Amazon basin. Known for its dog-like personality, it can recognize its owner and may beg for food. Oscars rearrange their tank decor and require spacious aquariums with robust filtration.