Here’s the lifespan information about neon tetras (Paracheirodon innesi):
Average Lifespan
- Wild Environment: Typically 2–3 years.
- Captive Breeding: If the environment is suitable (e.g., slightly acidic soft water, stable temperature), the lifespan may extend to 3–5 years.
Key Factors Affecting Lifespan
- Water Quality: Maintain slightly acidic soft water (pH 6.0–7.0) and avoid drastic fluctuations.
- Temperature: The optimal temperature is around 24°C (75°F).
- Diet: Adding nutrients like astaxanthin can delay aging.
- Group Housing: As social fish, they’re recommended to be kept in groups to reduce stress.
Life Cycle Stages
- Prime Period (7–24 months): Vibrant body color and strong reproductive ability.
- Aging Period (after 25 months): Fading color and reduced activity.
Comparison with Other Tetras
- Cherry barbs, rummy nose tetras, etc., have an average lifespan of 4–5 years.
- Diamond neon tetras can live up to 4–5 years.
Tips: Regular water changes (1/5 of the water each time) and adding antibacterial agents can improve survival rates.