Hi Camille. Their lifespan is 2-3 years on average. Of course that depends on them having proper care, feeding, and hygiene of their tank. Here is a link with a lot more information for you about how to properly care for them so you can insure the longest, healthiest life possible. Click here: What are Betta Fish? I hope this helps but if you have more questions, just let me know. Patricia
Parrot C&onsultant
Published author, free lance bird behaviorist, adviser to the parrots at Sarasota Jungle Gardens.