Angelfish vs European Sturgeon

Pterophyllum scalare 与之比较 Acipenser sturio

Taxonomy & Classification

属性	Angelfish	European Sturgeon
学名	Pterophyllum scalare	Acipenser sturio
目	Cichliformes	Perciformes
科	Cichlidae	Acipenseridae
Conservation Status	Least Concern	Critically Endangered

Physical Traits

属性	Angelfish	European Sturgeon
最大体长	15.0 cm	600.0 cm
最大体重	0.03 kg	400.0 kg
体色	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

属性	Angelfish	European Sturgeon
水质类型	Freshwater	Freshwater & Saltwater
栖息水深	—	4-93m
地理分布	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, …
栖息地	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

属性	Angelfish	European Sturgeon
最小水箱尺寸	190 L	—
水温	24-28	—
pH 范围	6.0-7.5	—
饲养难度	Moderate	—
性情	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.

European Sturgeon

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.

European Sturgeon

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.