Angelfish vs Betta
Pterophyllum scalare compared with Betta splendens
Taxonomy & Classification
| Attribute | Angelfish | Betta |
|---|---|---|
| Scientific Name | Pterophyllum scalare | Betta splendens |
| Order | Cichliformes | Anabantiformes |
| Family | Cichlidae | Osphronemidae |
| Conservation Status | Least Concern | Vulnerable |
Physical Traits
| Attribute | Angelfish | Betta |
|---|---|---|
| Max Length | 15.0 cm | 7.0 cm |
| Max Weight | 0.03 kg | 0.003 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. | Highly variable in domesticated strains; wild type is dull brownish-green with iridescent blue-green scale patches; long flowing fins display intense reds, blues, purples, and teals with iridescent sheen. |
Habitat & Environment
| Attribute | Angelfish | Betta |
|---|---|---|
| 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 Mekong River basin in Thailand, Laos, and Cambodia. Found in shallow rice paddies, irrigation ditches, ponds, and slow-moving lowland streams across the … |
| 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. | Shallow, densely vegetated ponds, rice paddies, and slow streams of Thailand and Southeast Asia. Tolerates oxygen-poor, warm water (24-30°C). Males highly territorial; builds bubble nests … |
Aquarium Suitability
| Attribute | Angelfish | Betta |
|---|---|---|
| Min Tank Size | 190 L | 19 L |
| Temperature | 24-28 | 24-30 |
| pH Range | 6.0-7.5 | 6.5-7.5 |
| Care Level | Moderate | Easy |
| Temperament | Semi-Aggressive | 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.
Betta
Not consumed — ornamental aquarium species prized for its flowing fins and vibrant coloration; classified Vulnerable in the wild.
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.
Betta
The Siamese fighting fish is famous for its vibrant colors and flowing fins, developed through centuries of selective breeding. Males are highly territorial and will flare their gill covers at rivals. They possess a labyrinth organ for breathing atmospheric air.