Angelfish vs Esturgeon commun

Pterophyllum scalare comparé à Acipenser sturio

Taxonomy & Classification

Attribut	Angelfish	Esturgeon commun
Nom scientifique	Pterophyllum scalare	Acipenser sturio
Ordre	Cichliformes	Perciformes
Famille	Cichlidae	Acipenseridae
Conservation Status	Least Concern	Critically Endangered

Physical Traits

Attribut	Angelfish	Esturgeon commun
Longueur maximale	15,0 cm	600,0 cm
Poids maximum	0,03 kg	400,0 kg
Couleur	Silver to pale gold body with four bold black vertical bars including one through the eye; tall triangular dorsal and ventral fins are translucent silver; domesticated forms include gold, black, and marbled variants.	Gray-brown to dark brownish-black back with 5 rows of bony scutes that are yellowish-white; sides pale grayish-brown to whitish; belly creamy-white; thick armored body with a shark-like heterocercal tail.

Habitat & Environment

Attribut	Angelfish	Esturgeon commun
Type d'eau	Freshwater	Freshwater & Saltwater
Plage de profondeur	—	4-93m
Aire de répartition	Native to the Amazon River basin and associated river systems in Peru, Colombia, and Brazil. Inhabits densely vegetated floodplain swamps, flooded igapó forests, and slow …	Historically ranged across European coastal waters from the North Sea and Baltic to the Mediterranean and Black seas, spawning in major rivers like the Rhine, …
Habitat	Slow-moving rivers and flooded forests of the Amazon basin, particularly white-water and clear-water rivers. Warm water (24-30°C); inhabits areas with submerged vegetation and driftwood.	Neritic, estuaries

Aquarium Suitability

Attribut	Angelfish	Esturgeon commun
Taille minimale de l'aquarium	190 L	—
Température	24-28	—
Plage de pH	6.0-7.5	—
Niveau d'entretien	Moderate	—
Tempérament	Semi-Aggressive	—

Cuisine & Edibility

Angelfish

Not consumed — a graceful ornamental cichlid valued for its triangular body shape and striking vertical banding; widely kept in freshwater community tanks.

Esturgeon commun

Critically Endangered — consumption is illegal throughout its range. Historically prized for its delicate flesh and black caviar; now one of the world's most threatened fish species.

Species Overview

Angelfish

The freshwater angelfish is a majestic cichlid with a laterally compressed body and long, flowing dorsal and anal fins. Native to the Amazon basin, it has been selectively bred into numerous color varieties including marble, koi, and platinum.

Esturgeon commun

The European sturgeon is a critically endangered anadromous fish that can live over 100 years. Once abundant in European rivers, it is now restricted to a small population in the Gironde estuary. Its eggs are harvested as beluga-grade caviar.