The lifespan of neon tetras (including cardinal tetras, neon tetras, etc.) varies depending on the species and breeding conditions. The comprehensive relevant information is as follows:
Lifespan of Common Species
Neon Tetra: In the wild, it typically lives for 1-2 years, while in artificial breeding, it can live for 2-3 years.
Cardinal Tetra: The average lifespan in the wild is 2.5-3 years, and it can be extended to 4-5 years in professional aquariums.
Diamond Red Neon Tetra: The lifespan is about 4-5 years.
Black Neon Tetra: It can live for 3-5 years under artificial breeding.
Key Factors Affecting Lifespan
Water Quality: Weakly acidic soft water (pH 5.5-7.0) is required, and the water temperature should be stabilized at 24-26°C.
Stocking Density: Group breeding is recommended, and mixed breeding with large fish should be avoided.
Feed: High-protein foods (such as bloodworms and astaxanthin feed) can delay aging.
Precautions
Small tetras generally have a short lifespan (2-3 years), so attention should be paid to water quality fluctuations and disease prevention.
Change water regularly (no more than 1/3 per week) and control the ammonia nitrogen concentration (<0.02mg/L).
If a more stable environment and scientific feeding are provided, the lifespan of some species (such as cardinal tetras) can be significantly extended.