I just wanted to share my thoughts on when you have to find new homes for your bettas. I am moving far away, far enough that I am flying, and into someone else's home where they don't want a bunch of aquariums all over the place. So I placed an ad on Craigslist and couldn't believe people would answer so fast for just free bettas. I picked a few people who sounded like they were either really into bettas, or really into fish keeping in general, and they were all very nice!
I have most of my bettas in a 6.6 gallon tank but surprisingly, several of the people I met had tanks from 10 to 30 gallons they would put my bettas in. (Yes I checked to make sure they didn't have anything that would eat my bettas, and they all either had a heater or I gave them one of mine.)
Anyway, just wanted to share that a lot of people will take a free betta, and if you just say in your ad that you don't want someone who is going to stick them in a tiny cold bowl, some people will actually message you with a photo of their fish tanks, or they'll tell you a little but about themselves to the point you can sort of tell they really love their fish and take care of them. I feel so much better having found good homes for my little guys, and now I can finish my move with a lot less stress!
I hope my new "roomies" ( my sister and her family) will maybe allow me one betta and one of my 6.6 gallon tanks, but we'll see. And as soon as I get my own place again someday - Bam! I will put a tank in every room. :)
P.S. Just to be safe, if anyone needs to meet strangers to give your fish or supplies away, I decided to meet people in broad daylight at a Petco or Petsmart parking lot, with another person. You just never know so it's best to play it safe!