I read on another forum (Ultimate Bettas, maybe?) that since HMs are bred selectively for their tail type and now for colors, they have a more nervous disposition. I dunno if that's for sure, but it's something worth looking into!
I know my HM is quite a nervous/spastic guy. I wouldn't be surprised if he has some mental issues, but he's cute anyway. It's endearing. :)
Octavius - Male Halfmoon [02/19/11]RIP
Nero- who had been living under the moniker of "Hestia" for the past two months. Poor boy. [02/28/11]