Angelfish vs European Sturgeon
Pterophyllum scalare compared with Acipenser sturio
Taxonomy & Classification
| Attribute | Angelfish | European Sturgeon |
|---|---|---|
| Scientific Name | Pterophyllum scalare | Acipenser sturio |
| Order | Cichliformes | Acipenseriformes |
| Family | Cichlidae | Acipenseridae |
| Conservation Status | Least Concern | Critically Endangered |
Physical Traits
| Attribute | Angelfish | European Sturgeon |
|---|---|---|
| Max Length | 15.0 cm | 600.0 cm |
| Max Weight | 0.03 kg | 400.0 kg |
| Color | 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
| Attribute | Angelfish | European Sturgeon |
|---|---|---|
| Water Type | Freshwater | Freshwater & Saltwater |
| Depth Range | — | 4-93m |
| Geographic Range | 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
| Attribute | Angelfish | European Sturgeon |
|---|---|---|
| Min Tank Size | 190 L | — |
| Temperature | 24-28 | — |
| pH Range | 6.0-7.5 | — |
| Care Level | Moderate | — |
| Temperament | 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.