Poisson rouge(=Cyprin doré) vs Plecostomus

Carassius auratus comparé à Hypostomus plecostomus

Taxonomy & Classification

Attribut	Poisson rouge(=Cyprin doré)	Plecostomus
Nom scientifique	Carassius auratus	Hypostomus plecostomus
Ordre	Cypriniformes	Siluriformes
Famille	Cyprinidae	Loricariidae
Conservation Status	Least Concern	Least Concern

Physical Traits

Attribut	Poisson rouge(=Cyprin doré)	Plecostomus
Longueur maximale	45,0 cm	50,0 cm
Poids maximum	2,0 kg	1,0 kg
Couleur	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 brown to grayish-black body densely covered with pale yellowish or cream spots and flecks creating a mottled leopard-like pattern; armor-plated scutes visible; belly is pale tan to cream.

Habitat & Environment

Attribut	Poisson rouge(=Cyprin doré)	Plecostomus
Type d'eau	Brackish	Brackish
Plage de profondeur	0-20m	—
Aire de répartition	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 rivers and coastal streams of northeastern South America, from Guyana and Suriname through northern Brazil. Found in rocky river bottoms and estuarine margins; …
Habitat	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 of the Amazon basin, especially the Rio Tapajós and Rio Orinoco. Inhabits clear-water rivers over gravel and rocks; also near submerged wood. Grazes algae …

Aquarium Suitability

Attribut	Poisson rouge(=Cyprin doré)	Plecostomus
Taille minimale de l'aquarium	150 L	280 L
Température	10-24	22-28
Plage de pH	6.0-8.0	6.5-8.0
Niveau d'entretien	Easy	Easy
Tempérament	Peaceful	Peaceful

Informations sur la pêche

Attribut	Poisson rouge(=Cyprin doré)	Plecostomus
Poisson de pêche sportive	Oui	Non
Cote de combativité	—	—
Record du monde	—	—
Teneur en mercure	—	—

Cuisine & Edibility

Poisson rouge(=Cyprin doré)

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.

Plecostomus

Not consumed — ornamental algae-eating catfish kept as a natural tank cleaner; widely popular in freshwater aquariums for its armored body and bottom-dwelling habits.

Species Overview

Poisson rouge(=Cyprin doré)

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.

Plecostomus

The common pleco is a large armored catfish native to South America. Often purchased as an algae eater, it can outgrow most home aquariums. Its sucker-like mouth allows it to rasp algae from surfaces and anchor itself in fast-flowing currents.