Angelfish vs Oscar
Pterophyllum scalare compared with Astronotus ocellatus
Taxonomy & Classification
| Attribute | Angelfish | Oscar |
|---|---|---|
| Scientific Name | Pterophyllum scalare | Astronotus ocellatus |
| Order | Cichliformes | Cichliformes |
| Family | Cichlidae | Cichlidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Attribute | Angelfish | Oscar |
|---|---|---|
| Max Length | 15.0 cm | 45.0 cm |
| Max Weight | 0.03 kg | 1.6 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. | Dark olive-brown to blackish body with irregular wavy orange-red markings forming a marbled or reticulated pattern; prominent black ocellus with orange ring at the upper tail base. |
Habitat & Environment
| Attribute | Angelfish | Oscar |
|---|---|---|
| Water Type | Freshwater | Freshwater |
| Depth Range | — | — |
| 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 … | Native to the Amazon and Orinoco river basins in South America, including Peru, Colombia, and Brazil. Inhabits slow, deep, turbid rivers, flooded forests, and large … |
| 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. | Slow-moving rivers and floodplains of the Amazon and Orinoco basins, South America. Warm, murky water (22-28°C, pH 6-8). Inhabits areas with submerged logs and dense … |
Aquarium Suitability
| Attribute | Angelfish | Oscar |
|---|---|---|
| Min Tank Size | 190 L | 280 L |
| Temperature | 24-28 | 22-25 |
| pH Range | 6.0-7.5 | 6.0-8.0 |
| Care Level | Moderate | Moderate |
| Temperament | Semi-Aggressive | Aggressive |
Fishing Information
| Attribute | Angelfish | Oscar |
|---|---|---|
| Game Fish | No | Yes |
| Fight Rating | — | — |
| World Record | — | — |
| Mercury Level | — | — |
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.
Oscar
Not consumed — popular ornamental cichlid kept for its bold patterning and personality; occasionally eaten in parts of South America but primarily an aquarium 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.
Oscar
The oscar is a large, intelligent cichlid native to the Amazon basin. Known for its dog-like personality, it can recognize its owner and may beg for food. Oscars rearrange their tank decor and require spacious aquariums with robust filtration.