Corydoras vs Walleye
Corydoras paleatus compared with Sander vitreus
Taxonomy & Classification
| Attribute | Corydoras | Walleye |
|---|---|---|
| Scientific Name | Corydoras paleatus | Sander vitreus |
| Order | Siluriformes | Perciformes |
| Family | Callichthyidae | Percidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Attribute | Corydoras | Walleye |
|---|---|---|
| Max Length | 7.0 cm | 107.0 cm |
| Max Weight | 0.005 kg | 11.3 kg |
| Color | Pale olive-gray to greenish body with irregular dark olive to black marbled blotches and spots; a broad dark blotch at the dorsal fin base; belly is cream to white; fins spotted or barred. | Golden-olive to brassy-yellow flanks with a mottled pattern of saddle-like dark blotches; distinctive white tip on lower tail lobe; large glassy eyes with reflective tapetum. |
Habitat & Environment
| Attribute | Corydoras | Walleye |
|---|---|---|
| Water Type | Freshwater | Brackish |
| Depth Range | — | 0-27m |
| Geographic Range | Native to the La Plata River system and coastal rivers of southeastern Brazil, Uruguay, and northeastern Argentina. Inhabits shallow streams, flooded meadows, and sandy-bottomed lagoons … | Native to Canada and the northern United States, including the Great Lakes basin and major river drainages such as the Missouri and Ohio rivers. Introduced … |
| Habitat | Rivers and streams of the Río de la Plata basin in South America (Brazil, Argentina, Uruguay). Inhabits clear-water streams over sandy and muddy bottoms. Active … | Freshwater lakes and rivers of North America east of the Rockies, from Canada to Tennessee. Inhabits clear, deep lakes and large rivers over sand and … |
Aquarium Suitability
| Attribute | Corydoras | Walleye |
|---|---|---|
| Min Tank Size | 40 L | — |
| Temperature | 22-26 | — |
| pH Range | 6.0-8.0 | — |
| Care Level | Easy | — |
| Temperament | Peaceful | — |
Fishing Information
| Attribute | Corydoras | Walleye |
|---|---|---|
| Game Fish | No | Yes |
| Fight Rating | — | 5/10 |
| World Record | — | — |
| Mercury Level | — | — |
Cuisine & Edibility
Corydoras
Not consumed — a small ornamental bottom-dwelling catfish beloved for its peaceful temperament and role as a substrate scavenger in community aquariums.
Walleye
Considered one of the best-tasting freshwater fish; sweet, flaky white flesh with very low fat. Ideal pan-fried, battered, or baked — a North American culinary favorite.
Species Overview
Corydoras
The peppered corydoras is a peaceful bottom-dwelling catfish native to South American rivers. It uses its barbels to sift through substrate for food and should be kept in groups of six or more. It can gulp atmospheric air in low-oxygen conditions.
Walleye
The walleye is the largest member of the perch family and the most sought-after freshwater food fish in North America. Its reflective eyes give it exceptional low-light vision, making dawn and dusk prime feeding times.