I've seen so many different answers when it comes to what size to feed them so I wasn't really sure. I saw a post where someone said the same as you, it should be the same size as their mid body, and then someone said it should be a little bigger so that when they swallow you can see a little lump in their belly. I even saw a post that said it should be double the width of them. I got my F/T from petsmart and the next size down was way too small for him so I went with the bigger size. Would you recommend me getting the smaller one and just feeding him multiple of them?