The lifespan of male bettas is influenced by their breed, living conditions, and gender differences. Here’s a comprehensive analysis based on research findings:
1. Lifespan of Male Bettas by Breed
Siamese Fighting Fish (Betta splendens)
In the wild, they typically live 4–5 years. In captivity, their lifespan usually ranges from 3–5 years, though most individuals actually live 2–4 years.
Male bettas are most vibrantly colored during their prime (1–2 years old), after which their hues gradually fade.
Chinese Fighting Fish (Macropodus opercularis)
They have an average lifespan of 2–3 years, but can live up to 5 years under ideal conditions. A small number of robust individuals may even exceed 6 years.
Males generally outlive females by 1–2 years: males typically live 3–5 years, while females live 2–3 years.
2. Key Factors Affecting Lifespan
Water Quality Management
Maintaining stable pH levels (6.5–7.5) and changing 1/3 of the water weekly can extend their lifespan.
Care Practices
Avoid overbreeding, as breeding takes a heavy toll on male bettas.
Use a substrate filtration system to reduce water quality fluctuations.
Stress Control
Minimize sudden changes in light and noise disturbances.
3. Tips to Extend Lifespan
Choose Subadults
Opt for bettas that are 6 months old or older to avoid the risk of residual medications from fish farms.
Balanced Diet
Combine high-protein live food (such as bloodworms) with commercial feed to avoid a monotonous diet.
Disease Prevention
Regularly stimulate them with a mirror to keep them active, and isolate and treat any signs of infection promptly.
With scientific care, the lifespan of male bettas can approach their theoretical maximum (e.g., male Chinese fighting fish reaching 5–6 years).