Hello, I was just reading about your betta delimma. I have a betta myself and it comes with me whereever I go (I mean when I'm gone away from home for awhile.) Sometimes I drive for 7 hours and bring him with me. And my betta never gets stressed, he is always happy happy. He even still eats from me in the car lol. What I always do is you know those large water bottles you can get that are pretty big, well I swish fish water around in it to make sure its safe, then I fill it up and put my betta in it, I dont' ever close the cover or else he wouldn't be able to get air, so I just hold the big bottle between my legs and he is all happy and everything! Otherwise when I leave my goldfish for over a week, I put a vacation feeder in and it works great! Hope whatever decision you make is great!