How long to Beta Fish live?

[crimmy]

I was given a Beta fish as a gift. I was wondering if anyone knows how long a beta fish's life span is.

Thanks

[JennLynn]

Betta fish grow to about 6 cm, and have a life-span, on average, of about four years. Well maintained aquarium Bettas have been known to live longer than six years.

they also do fight with other fish /aquatic animals, so its best not to put them in a tank with any other fish species without checking with someone else first.

[Shield]

I have seen male betas fight with other male betas, so I definitely would check with an expert before placing them with any other fish, even another beta.