I inadvertantly have Bettas wanting to breed!
This is quite funny. I recently bought a variety of Bettas from Petco and until I get their permanent homes set up(working on it asap) I've got them in temporary 5 gallon water jug homes. Most can't see each other but my male king Betta(apparently just a half giant plakat from what I've read) and a veil tail female can. Just a few minutes ago I glanced over in their direction and saw them displaying to each other between tanks. I walked over for a closer inspection and sure enough, the female is displaying vertical banding and the male has a big ole bubble nest built. As I type this he's swimming between the nest and the edge of his jug by her.
I wish I had more space right now as it's tempting to plunk her into his jug seeing that they're in the mood. Really though I find it very cute and entertaining. It gives me real hope though when I do decide to breed a few for fun in the future. I didn't realize it was really that easy. I didn't do a single thing special with their diet or water conditions! Love is in the air, or water I suppose.