Ok folks, many of you have PMed me asking what I use to keep my bettas in.
Here it is, I love these and they aren't expensive, in fact I think I got 75 of these for around 120 bucks.
Far more room than a Mason Jar and easy to keep neat.
I just got these today, I need about 400 more..in time.
Lots of room for the fish and they are much happier in these, mason jars are plenty big, but the more room the better.
they even come with a nice lid for those jumpers, and no they wont suffocate..leave about 2 inches airspace, that's the equivlant of you breathing all the air in the superdome so don't worry.