I am planning on rehoming my bettas in my freshly vacated spare room.

My mother in law has been living in there for the past 6 months, and our friend for the 6 months before that, and I finally have my room to put MY stuff, and my beautiful bettas.

I am also hoping I can teach my sister how to take really good care of them while she is here over the summer and then I might consider getting one from Karen for her.
But anyways, what is the best way to move them? Should I put them in something and move the tank, and then them, or leave them in the tank, but be as gentle as possible when carrying it? I have 5gal hex tanks, and I was going to take about 50% of the water out and move them during their weekly
water change. Any suggestions? I want to do this as painlessly as possible for them! Plus, this room happens to be the coldest in the house, and we live in phoenix AZ, and I am worried about the tanks getting too hot, so hopefully that will help! Chewbie loses about .5 gal a week in her tank!
Thanks all! I will put pictures of their new location when I get them. They are going to have a nice set up.
Next step, a
QT tank...

Finally have room!!! SOOOOO EXCITED!