Overview
The Neon Tetra (Paracheirodon innesi) is a freshwater fish belonging to the family Characidae. It thrives at temperatures of 20–26 °C with a pH of 5.5–7.5, and requires a minimum tank volume of 60 litres. Known for its peaceful schooling fish; ideal community species, it is considered a beginner-level species. Keep in groups of 10 or more; lone neon tetras become stressed and lose colour. Water changes of 25–30 % weekly, stable parameters, and appropriate tank mates are key to long-term success with this species.
Scientific Classification
| Rank | Classification |
|---|---|
| Family | Characidae |
| Genus | Paracheirodon |
| Species | Paracheirodon innesi |
| Water type | freshwater |
| Native range | Amazonas|Neotropical|Putumayo |
Natural Habitat
Paracheirodon innesi originates from Amazonas|Neotropical|Putumayo. It inhabits freshwater environments and is adapted to the water conditions found in its native range.
Appearance
Adults reach 3–4 cm in length. The body is freshwater and the species displays characteristic coloration suited to its environment.
Behavior
This species is described as a peaceful schooling fish; ideal community species. It naturally schools and should be kept in groups of 6 or more. Activity level is moderate. Keep in groups of 10 or more; lone neon tetras become stressed and lose colour.
| Trait | Value |
|---|---|
| Temperament | peaceful schooling fish; ideal community species |
| Schooling | Yes |
| Activity level | moderate |
Water Requirements
| Parameter | Ideal Range | Notes |
|---|---|---|
| Temperature | 20–26°C (68–79°F) | Use a reliable adjustable heater |
| pH | 5.5–7.5 | Avoid sudden swings |
| Hardness (GH) | 1–10 dGH dGH | Soft to moderately hard |
| Ammonia | 0 ppm | Any detectable ammonia signals a problem |
| Nitrite | 0 ppm | Toxic even at low levels |
| Nitrate | <15 ppm | Manage through regular partial water changes |
| Min. tank | 60L (16 gal) | Larger tanks are easier to keep stable |
Interesting Facts
- Around 1.5 million Neon Tetras are sold in the USA every month, making them one of the world's most traded fish.
- The iridescent blue stripe reflects light using iridophore cells — it has no blue pigment.
- Neon Tetra Disease (Pleistophora hyphessobryconis) is a serious parasite with no cure; quarantine new fish.
📋 Full Care Guide
Ready to set up a tank for your Neon Tetra? The complete care guide covers tank setup, feeding schedule, common diseases, tank mates, and breeding.
Read Neon Tetra Care Guide →Related Species
Related Species & Guides
This species profile was reviewed for biological accuracy and practical aquarium care guidance. For suspected illness or disease, test your water parameters first and consult an aquatic veterinarian if symptoms persist.