Common Goldfish vs Summer Flounder
Carassius auratus compared with Paralichthys dentatus
Taxonomy & Classification
| Attribute | Common Goldfish | Summer Flounder |
|---|---|---|
| Scientific Name | Carassius auratus | Paralichthys dentatus |
| Order | Cypriniformes | Pleuronectiformes |
| Family | Cyprinidae | Paralichthyidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Attribute | Common Goldfish | Summer Flounder |
|---|---|---|
| Max Length | 45.0 cm | 94.0 cm |
| Max Weight | 2.0 kg | 12.0 kg |
| Color | Brilliant orange to deep golden-yellow body with a metallic sheen across all scales; domesticated forms range from white, yellow, and red to black and calico bicolor combinations. | 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 | Common Goldfish | Summer Flounder |
|---|---|---|
| Water Type | Brackish | Saltwater |
| Depth Range | 0-20m | 10-183m |
| Geographic Range | Originates from rivers and lakes of eastern China and possibly Korea; domesticated for over 1,000 years. Wild relatives inhabit slow rivers, ponds, and slightly brackish … | 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 | Ponds, lakes, slow rivers across East Asia; introduced worldwide. Tolerates wide temperature range (10-30°C) and turbid water. Prefers shallow, vegetated areas with soft substrates. Domestic … | Neritic, demersal, estuaries |
Aquarium Suitability
| Attribute | Common Goldfish | Summer Flounder |
|---|---|---|
| Min Tank Size | 150 L | — |
| Temperature | 10-24 | — |
| pH Range | 6.0-8.0 | — |
| Care Level | Easy | — |
| Temperament | Peaceful | — |
Fishing Information
| Attribute | Common Goldfish | Summer Flounder |
|---|---|---|
| Game Fish | Yes | Yes |
| Fight Rating | — | 4/10 |
| World Record | — | — |
| Mercury Level | — | — |
Cuisine & Edibility
Common Goldfish
Not consumed — a classic ornamental aquarium and pond fish; its vivid color and hardy nature make it one of the world's most popular decorative 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
Common Goldfish
The goldfish was one of the first fish to be domesticated, with selective breeding in China dating back over 1,000 years. Despite common misconceptions, goldfish can live 10-15 years with proper care and require far more space than a small bowl.
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.