Betta is not Moving

[djlactose]

Betta breathing heavy and not moving

My Betta was just sitting on the bottom of the tank breathing heavy. I don't see anything else wrong with him besides his heavy breathing. I isolated him and gave him a little food which he did take a little of but not much at all. Is there anything I can do?

 

[twoluvcats]

what kind of tank is he in? how long have you had him? is his tank heated? has anything in his environment changed recently?