Not really sure I understand the question, but I will answer what I think you're asking <img src="/images/graemlins/wink.gif" alt="" />. A betta can go for quite a while without food. In their natural environments, they have drought seasons, where food is in short supply, so they have adapted to this. If it were me, I would fast him a day or two, then give him crushed flakes (the veggie matter will be easier on his digestive tract), then return to his regular food. He will still need a water change and interaction is always good for them. <img src="/images/graemlins/smile.gif" alt="" /> I hope I helped, if not, just ask again. <img src="/images/graemlins/wink.gif" alt="" />
Amber