I got home from work this evening and Jimi Hendrix, my betta, was dead He had shown no signs of disease or stress. I kept his water fresh. He was the little guy that got me into the hobby. I'll miss you Jimi!
That's a shame. Althoguh I don't think bettas have a particularly long life-span. If he was a year old when you got him for example, it's very possible he simply died of old age.