2 - 6 Years
The lifespan of betta fish varies significantly due to factors such as species, gender, and breeding conditions. Based on comprehensive authoritative sources, the information is as follows:
General Lifespan Range
Most betta fish can live 2 - 3 years under artificial breeding conditions. However, if the environment is stable and well - maintained (e.g., water temperature of 24 - 27°C, pH value of 6.5 - 7.2, and a diverse diet), some individuals can live up to 5 - 6 years.
Male betta fish typically have a longer lifespan than females (3 - 5 years for males vs. 2 - 3 years for females).
Key Factors Affecting Lifespan
- Water Quality Management: Avoid using cooled boiled water (which lacks minerals) or mineral water. It is necessary to simulate the natural habitat (e.g., add Indian almond leaves to adjust the pH value).
- Diet: High - protein foods (such as premium fish feed or live bait) are required to maintain body color and health. Malnutrition will lead to color fading and a shortened lifespan.
- Environmental Stress: Direct strong light and scares (such as fighting in mixed breeding or improper water change operations) will both shorten the lifespan.
Controversies and Misunderstandings
Some users report that in actual breeding, betta fish living about 1 year is considered "long - lived", which may be related to improper care by novices.
Online rumors such as "laser dyeing" are unfounded. Color fading is mostly related to age, disease, or the environment.
Tips: If you want to extend the lifespan of betta fish, you need to focus on water temperature, water quality stability, and nutritional balance, and avoid mixed breeding or sudden environmental changes.