Corydoras vs Neon Tetra
Corydoras paleatus compared with Paracheirodon innesi
Taxonomy & Classification
| Attribute | Corydoras | Neon Tetra |
|---|---|---|
| Scientific Name | Corydoras paleatus | Paracheirodon innesi |
| Order | Siluriformes | Characiformes |
| Family | Callichthyidae | Characidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Attribute | Corydoras | Neon Tetra |
|---|---|---|
| Max Length | 7.0 cm | 3.0 cm |
| Max Weight | 0.005 kg | 0.001 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. | Electric iridescent blue-green stripe from eye to adipose fin; vivid red stripe from mid-body to tail base; back olive-brown; belly silvery-white; all fins transparent and colorless. |
Habitat & Environment
| Attribute | Corydoras | Neon Tetra |
|---|---|---|
| Water Type | Freshwater | Freshwater |
| Depth Range | — | — |
| 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 blackwater tributaries of the upper Amazon River basin in Colombia, Peru, and Brazil. Inhabits slow, acidic, tannin-stained streams and flooded forest areas in … |
| Habitat | Rivers and streams of the RÃo de la Plata basin in South America (Brazil, Argentina, Uruguay). Inhabits clear-water streams over sandy and muddy bottoms. Active … | Warm, soft-water rivers and streams of the upper Amazon and Perú in South America. Prefers slow-moving blackwater with dense vegetation (pH 5.5-7.5, 20-26°C). Dense schooling … |
Aquarium Suitability
| Attribute | Corydoras | Neon Tetra |
|---|---|---|
| Min Tank Size | 40 L | 40 L |
| Temperature | 22-26 | 20-26 |
| pH Range | 6.0-8.0 | 6.0-7.0 |
| Care Level | Easy | Easy |
| Temperament | Peaceful | Peaceful |
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.
Neon Tetra
Not consumed — ornamental aquarium species kept for its vivid iridescent stripe and peaceful schooling behavior.
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.
Neon Tetra
The neon tetra is one of the most popular freshwater aquarium fish, known for its iridescent blue and red horizontal stripes. Native to blackwater streams of the Amazon basin, it thrives in schools of six or more.