The betta should be fine for the weekend long break. Just feed them as normal when you leave and when you get back. They should be fine a day or two.
How big is your tank? The size may require at least one full water change during the week-long break.
There is something called "Vacation Feeders," and some made especially for betta. I have not used them yet, but I know there are 3 and 7 day long feeders. It disintegrates over time and feeds the boys. I know they are notorious for making the water filthy, but I hear it works. I see mine at Petsmart.
Hopefully someone with more experience/advice could help you out.
How big is your tank? The size may require at least one full water change during the week-long break.
There is something called "Vacation Feeders," and some made especially for betta. I have not used them yet, but I know there are 3 and 7 day long feeders. It disintegrates over time and feeds the boys. I know they are notorious for making the water filthy, but I hear it works. I see mine at Petsmart.
Hopefully someone with more experience/advice could help you out.