The lifespan of guppies is influenced by multiple factors such as genetics, breeding conditions, and reproduction frequency. Here’s comprehensive information:
I. Basic Lifespan Range
- General Lifespan
In captivity, guppies typically live 1–2 years, with a few individuals reaching 2.5–3 years.
Male guppies generally have shorter lifespans than females (males ~1 year, females up to 2–3 years) due to energy消耗 (energy consumption) from frequent mating.
- Extreme Records
Rare high-quality individuals may exceed 3 years under ideal conditions, but cases over 4 years are extremely uncommon.
II. Key Influencing Factors
- Genetic Quality
Inbred individuals or those with poor constitution show significantly shortened lifespans.
- Breeding Management
- Water temperature should be maintained at 24–28°C (tolerance range: 22–28°C).
- Slightly alkaline water (pH 7.2–7.4) can extend lifespan.
- Reproductive Pressure
Frequent childbearing accelerates female aging; control reproduction frequency is recommended.
III. Comparison with Other Fish Species
As small tropical fish, guppies live shorter than bettas (2–3 years) and molly fish (2 years), but far shorter than medium-sized ornamental fish like goldfish (5+ years).
Note: In practical breeding, pay attention to preventing common diseases like pin-tail disease, one of the main causes of fry mortality.