Neon Tetra vs Wels Catfish
Paracheirodon innesi compared with Silurus glanis
Taxonomy & Classification
| Attribute | Neon Tetra | Wels Catfish |
|---|---|---|
| Scientific Name | Paracheirodon innesi | Silurus glanis |
| Order | Characiformes | Siluriformes |
| Family | Characidae | Siluridae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Attribute | Neon Tetra | Wels Catfish |
|---|---|---|
| Max Length | 3.0 cm | 500.0 cm |
| Max Weight | 0.001 kg | 300.0 kg |
| Color | 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. | Dark olive-green to slate-gray back with irregular mottled marbling of darker blotches; flanks grade to olive-yellow; scaleless smooth skin; belly pale cream to yellowish-white; head broad and flat. |
Habitat & Environment
| Attribute | Neon Tetra | Wels Catfish |
|---|---|---|
| Water Type | Freshwater | Brackish |
| Depth Range | — | 0-30m |
| Geographic Range | 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 … | Native to large river systems and lakes of central and eastern Europe from the Rhine basin east to the Caspian and Aral sea drainages. Introduced … |
| Habitat | 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 … | Large rivers, lakes, and reservoirs across Europe and Asia (Volga, Danube, Rhine, Ob). Inhabits deep, slow-moving freshwater with soft substrates. Tolerates turbid water (15-25°C). Highly … |
Aquarium Suitability
| Attribute | Neon Tetra | Wels Catfish |
|---|---|---|
| Min Tank Size | 40 L | — |
| Temperature | 20-26 | — |
| pH Range | 6.0-7.0 | — |
| Care Level | Easy | — |
| Temperament | Peaceful | — |
Fishing Information
| Attribute | Neon Tetra | Wels Catfish |
|---|---|---|
| Game Fish | No | Yes |
| Fight Rating | — | 9/10 |
| World Record | — | — |
| Mercury Level | — | — |
Cuisine & Edibility
Neon Tetra
Not consumed — ornamental aquarium species kept for its vivid iridescent stripe and peaceful schooling behavior.
Wels Catfish
Fatty, soft flesh with a mild, slightly sweet flavor; quality improves from cold, clean water fish. Popular in Central European cuisines — commonly smoked, fried, or braised with vegetables.
Species Overview
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.
Wels Catfish
The wels catfish is the largest freshwater fish in Europe, capable of exceeding 5 meters. Found in large rivers and lakes across the continent, it has been documented beaching itself to catch pigeons. It can live over 80 years.