Oscar vs Summer Flounder
Astronotus ocellatus compared with Paralichthys dentatus
Taxonomy & Classification
| Attribute | Oscar | Summer Flounder |
|---|---|---|
| Scientific Name | Astronotus ocellatus | Paralichthys dentatus |
| Order | Cichliformes | Pleuronectiformes |
| Family | Cichlidae | Paralichthyidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Attribute | Oscar | Summer Flounder |
|---|---|---|
| Max Length | 45.0 cm | 94.0 cm |
| Max Weight | 1.6 kg | 12.0 kg |
| Color | 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. | Eyed side is brownish to gray-green with a mottled pattern of pale blotches; 12–14 distinct pale-edged dark ocelli (eyespots) scattered across the body; blind side is plain white; color changes with substrate. |
Habitat & Environment
| Attribute | Oscar | Summer Flounder |
|---|---|---|
| Water Type | Freshwater | Saltwater |
| Depth Range | — | 10-183m |
| Geographic Range | 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 … | Western North Atlantic from Nova Scotia south to Florida and the northern Gulf of Mexico. Undertakes seasonal offshore migration to deeper Continental Shelf waters in … |
| Habitat | 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 … | Neritic, demersal, estuaries |
Aquarium Suitability
| Attribute | Oscar | Summer Flounder |
|---|---|---|
| Min Tank Size | 280 L | — |
| Temperature | 22-25 | — |
| pH Range | 6.0-8.0 | — |
| Care Level | Moderate | — |
| Temperament | Aggressive | — |
Fishing Information
| Attribute | Oscar | Summer Flounder |
|---|---|---|
| Game Fish | Yes | Yes |
| Fight Rating | — | 4/10 |
| World Record | — | — |
| Mercury Level | — | — |
Cuisine & Edibility
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.
Summer Flounder
Thin, delicate white fillets with a sweet, mild flavor and very low fat. Prized on the U.S. East Coast; superb pan-fried in butter, stuffed and baked, or prepared as ceviche.
Species Overview
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.
Summer Flounder
The summer flounder, or fluke, is a flatfish that lies camouflaged on the ocean floor. Born with eyes on both sides, one eye migrates to the left side during development. An ambush predator, it explodes upward to grab passing prey.