I have been fastening him once a week lately as I haven't been home, but I usually am feeding them every night. He is in a community tank and they all are eating the same food - Tetra's Betta Tropical Mix Medley (I think that's what it's called; the other fish in there eat it too) and I will usually put in two pinches to feed the lot of them. I have four other tetras in there, and a Pleco, which I feed him his own special big pellets that I'm 99% sure my Betta doesn't touch. I have never given him blood-worms, today was the first day for a treat, and to find out if he likes them so I could feed them to him more often (because my other Betta is fussy and won't eat them), and I only really noticed that his stomach was swollen while he was eating. I'm going to fasten him.. How long do you suggest I do it for? I can't get into town to get new medicines until next Tuesday, which is five days away!! :/ (My fish have never been sick so I lend out my medications etc and they've run out now and I live in the country and my fish decides to get sick! -_-) Will he last until then?