A purple HMPK with orange edging around his fins at PetSmart. That looks like this (this is not him..just a pic I found off google) http://www.google.com/imgres?imgurl=...:0&tx=97&ty=49 for $9.00. If you can't see the image type "purple/orange HMPK" on google, its the first one.
Just because a betta is making a nest, it doesnt mean he wants to mate.
Raising betta fry is expensive, can be difficult, takes a long time and takes a long time to find new home for fry.
You need to research more, especially if you're under the impression that he wants to breed simply because he is building a bubble nest.
A bubblenest is a sign of happiness and content, when the fish is in a healthy tank.
I of course mean no offense, but please- educate yourself first.
I am educated. -_- I breed veiltails and the fry got homes. Now, I'm doing it again. And from my mother's side they bred fish for a long time. A bubble nest is both: They are happy and are ready to spawn. And they want to spawn. http://www.bettafish.com/showthread.php?t=20058 If you look, it says Why are there bubbles on the top of my tank? And it means...their happy, healthy, and READY FOR SPAWNING. I know that a random person with no education in Bettas can't just say "Ooh! My Betta made a bubble nest! Imma breed him now..." I know how you breed them. I hope you understand that
Bubble nests mean that they are content, or generally happy. If they make a BN when a female is around, then you can breed them. most males will make a BN even without a female. It's like a human getting random...um...yeah, like what happens when your a teen...*awkward silence* or that's what I think anyway...