How long do betta fish live as a pet?

2-4 years old
But, many people don’t realize the commitment they’re making when choosing betta fish as a pet. Betta fish lifespan. Betta fish on average live to be 2-4 years old. The length of your betta fish’s life is directly related to the environment you keep them in.

Must Read

Can bettas live 7 years?

With the right genetics, environment, and care from the onset of a betta’s life, they can live up to 6 or 7 years or more. Several owners have even reported lifespans of 9 and 10 years, but that’s not realistic for every betta.