Angelfish vs Rainbow Trout
Pterophyllum scalare compared with Oncorhynchus mykiss
Taxonomy & Classification
| Attribute | Angelfish | Rainbow Trout |
|---|---|---|
| Scientific Name | Pterophyllum scalare | Oncorhynchus mykiss |
| Order | Cichliformes | Salmoniformes |
| Family | Cichlidae | Salmonidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Attribute | Angelfish | Rainbow Trout |
|---|---|---|
| Max Length | 15.0 cm | 120.0 cm |
| Max Weight | 0.03 kg | 25.4 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. | 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
| Attribute | Angelfish | Rainbow Trout |
|---|---|---|
| Water Type | Freshwater | Freshwater & Saltwater |
| Depth Range | — | 0-200m |
| 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 cold rivers and coastal waters of western North America from Alaska to northern Mexico. Anadromous steelhead run migrate between Pacific coastal rivers and … |
| 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. | 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
| Attribute | Angelfish | Rainbow Trout |
|---|---|---|
| Min Tank Size | 190 L | — |
| Temperature | 24-28 | — |
| pH Range | 6.0-7.5 | — |
| Care Level | Moderate | — |
| Temperament | Semi-Aggressive | — |
Fishing Information
| Attribute | Angelfish | Rainbow Trout |
|---|---|---|
| Game Fish | No | Yes |
| Fight Rating | — | 6/10 |
| 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.
Rainbow Trout
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
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.
Rainbow Trout
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.