Atún rojo del Atlántico vs Corydoras

Thunnus thynnus comparado con Corydoras paleatus

Taxonomy & Classification

Atributo	Atún rojo del Atlántico	Corydoras
Nombre Científico	Thunnus thynnus	Corydoras paleatus
Orden	Scombriformes	Siluriformes
Familia	Scombridae	Callichthyidae
Conservation Status	Least Concern	Least Concern

Physical Traits

Atributo	Atún rojo del Atlántico	Corydoras
Longitud Máxima	458,0 cm	7,0 cm
Peso Máximo	680,0 kg	0,005 kg
Color	Dark metallic blue-black back with a bright silvery-white lower belly; upper flanks show iridescent blue and green tones; short yellow finlets have black margins; second dorsal and pectoral fins dark.	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

Atributo	Atún rojo del Atlántico	Corydoras
Tipo de Agua	Saltwater	Freshwater
Rango de Profundidad	0-985m	—
Distribución Geográfica	North Atlantic Ocean from the Gulf of Mexico and Caribbean north to Norway and Iceland, including the Mediterranean and Black seas. Two spawning populations: western …	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 …
Hábitat	Open ocean in the Atlantic, Mediterranean, and Black Sea. Highly migratory, ranging from temperate to subtropical surface waters (0-100m, optimum 15-25°C). Aggregates seasonally to feed …	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

Atributo	Atún rojo del Atlántico	Corydoras
Tamaño Mínimo del Acuario	—	40 L
Temperatura	—	22-26
Rango de pH	—	6.0-8.0
Nivel de Cuidado	—	Easy
Temperamento	—	Peaceful

Información de Pesca

Atributo	Atún rojo del Atlántico	Corydoras
Pez de Pesca Deportiva	Sí	No
Clasificación de Pelea	10/10	—
Récord Mundial	—	—
Nivel de Mercurio	—	—

Cuisine & Edibility

Atún rojo del Atlántico

The pinnacle of raw fish dining — intensely rich, fatty tuna-o-toro with deep red color and buttery, umami-forward flavor. Commands the highest prices globally in Japanese sushi markets.

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

Atún rojo del Atlántico

The Atlantic bluefin tuna is one of the largest bony fish, capable of crossing the Atlantic in under 60 days. A single specimen has sold for over $3 million at Tokyo's fish market. It can maintain a body temperature above the surrounding water.

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.