Ohh Amanda..
I am so sorry..

My Petsmart Betta's were in the two year range when I lost them pretty much the same way. When you consider the size they are in the store, I have to say they are no younger than six months and maybe up to a year old if they are the larger Bettas. Most Chain store betta's last about two to three years under the best conditions. Of course there are some that have lasted four and five years, Im just mentioning the average life span.So your little one may be onto three years old now.
If your water perimeters are fine, and there is no outward sign of any physical problems then your little guy is probably just old... and it may be his time soon to leave you...

Others will suggest different things to try and hopefully your little one will perk back up for you, my concern is that he has been like that for two weeks now. It reminds me of my own guys... and I tried everything I could.
