Yea, thanks for the heads up. The Ibc betta websites say they (some types of wild, although most of the species seem to say the same thing) could be kept in a pair in a 10 gallons and group be kept in 30 gallons. I'm not sure what "group" imply here, is it group of bettas, or group as in a community tank?
And I will PM OFL about this. Actually, i was very interested in Setsuna's imbellis so I was hoping that he would breed and sell me some :D
11 bettas: 1 Twintail Halfmoon, 2 Crowntail, 5 Halfmoon, 2 Plakat, 1 Veiltail