I keep both mine in 1.25G bowls, unfiltered, unheated (too small for both).
I'm going to move 1 of them to a real tank, though. Filtered and all. It'll be like Betta Hilton. The other seems to kinda like bowl life, so I probably won't move him.
Hey Torrean go ahead if you like and make it a poll I don't mind. I just did not know if I should do that or not. But you can make it a poll if you like......