Well, I've fought it off for as long as I could, but I caved today. I have one male betta, a wild type coloration veil tail. I was in petsmart today picking up two bunches of plants for my 12g and I saw this little girl. One look at her and I knew she was coming home with me.
I'm going to keep her in her cup for a few days with at minimum, 1 water change a day to put her through a mini-quarintine, and then she'll be joining the cory cats in the 12g over the weekend or beginning of next week. I threw in some hornwort for her so she has at least some security.
I have no idea what kind of coloring she is, but I thought she was pretty sharp looking.