Poor betta... :-\ Maybe leave him without food for two-three days and see how he does?
Work betta 2 doesn’t get fed on the weekends and he’s doing fine (now that I’m carting in water from home), so they don’t starve very quickly.
Yeah, that’s what I did. He seems okay now. But for the first few days when I came back I was concerned. I changed out the water and that seemed to help. He’s looking for breakfast now...