Discus vs Neon Tetra
Symphysodon discus compared with Paracheirodon innesi
Taxonomy & Classification
| Attribute | Discus | Neon Tetra |
|---|---|---|
| Scientific Name | Symphysodon discus | Paracheirodon innesi |
| Order | Cichliformes | Characiformes |
| Family | Cichlidae | Characidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| Attribute | Discus | Neon Tetra |
|---|---|---|
| Max Length | 20.0 cm | 3.0 cm |
| Max Weight | 0.25 kg | 0.001 kg |
| Color | Deep-bodied disc shape with vibrant turquoise-blue wavy horizontal lines over a reddish-brown to orange-brown base; fins edged in vivid blue with red striping; wild forms show 9 dark vertical bars. | 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 | Discus | Neon Tetra |
|---|---|---|
| Water Type | Freshwater | Freshwater |
| Depth Range | — | — |
| Geographic Range | Restricted to the central Amazon River basin in Brazil, particularly around the confluence of the Rio Negro and Rio Solimões. Prefers warm, soft, highly acidic … | 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 | Warm, blackwater rivers of the Amazon basin, particularly the Rio Negro and tributaries. Prefers soft, acidic water (pH 4.5-6.5, 26-31°C) with driftwood and minimal current. … | 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 | Discus | Neon Tetra |
|---|---|---|
| Min Tank Size | 250 L | 40 L |
| Temperature | 26-30 | 20-26 |
| pH Range | 5.0-7.0 | 6.0-7.0 |
| Care Level | Difficult | Easy |
| Temperament | Peaceful | Peaceful |
Cuisine & Edibility
Discus
Not consumed — a prized ornamental aquarium fish known as the 'king of the aquarium' for its disc-shaped body and brilliant colors.
Neon Tetra
Not consumed — ornamental aquarium species kept for its vivid iridescent stripe and peaceful schooling behavior.
Species Overview
Discus
The discus is often called the 'King of the Aquarium' for its disc-shaped body and stunning color patterns. Native to the Amazon floodplains, it requires warm, soft, acidic water and feeds its fry with a mucus secretion from its skin.
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.