Betta vs Truite arc-en-ciel

Betta splendens comparé à Oncorhynchus mykiss

Taxonomy & Classification

Attribut	Betta	Truite arc-en-ciel
Nom scientifique	Betta splendens	Oncorhynchus mykiss
Ordre	Anabantiformes	Salmoniformes
Famille	Osphronemidae	Salmonidae
Conservation Status	Vulnerable	Least Concern

Physical Traits

Attribut	Betta	Truite arc-en-ciel
Longueur maximale	7,0 cm	120,0 cm
Poids maximum	0,003 kg	25,4 kg
Couleur	Highly variable in domesticated strains; wild type is dull brownish-green with iridescent blue-green scale patches; long flowing fins display intense reds, blues, purples, and teals with iridescent sheen.	Steel-blue to olive-green back with a vivid iridescent pink-to-crimson lateral stripe, flanks densely speckled with small black spots across body and fins.

Habitat & Environment

Attribut	Betta	Truite arc-en-ciel
Type d'eau	Freshwater	Freshwater & Saltwater
Plage de profondeur	—	0-200m
Aire de répartition	Native to the Mekong River basin in Thailand, Laos, and Cambodia. Found in shallow rice paddies, irrigation ditches, ponds, and slow-moving lowland streams across the …	Native to cold rivers and coastal waters of western North America from Alaska to northern Mexico. Anadromous steelhead run migrate between Pacific coastal rivers and …
Habitat	Shallow, densely vegetated ponds, rice paddies, and slow streams of Thailand and Southeast Asia. Tolerates oxygen-poor, warm water (24-30°C). Males highly territorial; builds bubble nests …	Native to cool, clear rivers and streams of western North America; introduced worldwide. Prefers cold, oxygen-rich water (10-18°C) over gravel and cobble at 0-500m elevation. …

Aquarium Suitability

Attribut	Betta	Truite arc-en-ciel
Taille minimale de l'aquarium	19 L	—
Température	24-30	—
Plage de pH	6.5-7.5	—
Niveau d'entretien	Easy	—
Tempérament	Aggressive	—

Informations sur la pêche

Attribut	Betta	Truite arc-en-ciel
Poisson de pêche sportive	Non	Oui
Cote de combativité	—	6/10
Record du monde	—	—
Teneur en mercure	—	—

Cuisine & Edibility

Betta

Not consumed — ornamental aquarium species prized for its flowing fins and vibrant coloration; classified Vulnerable in the wild.

Truite arc-en-ciel

Delicate, mildly sweet flesh ranging from white to pink; low to moderate fat. Excellent pan-fried with butter, baked, or smoked; a top-tier freshwater table fish.

Species Overview

Betta

The Siamese fighting fish is famous for its vibrant colors and flowing fins, developed through centuries of selective breeding. Males are highly territorial and will flare their gill covers at rivals. They possess a labyrinth organ for breathing atmospheric air.

Truite arc-en-ciel

The rainbow trout is native to cold-water tributaries of the Pacific Ocean in Asia and North America. Widely introduced worldwide, it is prized by anglers for its acrobatic leaps and beautiful coloration.