No.. there are no particular tail coloration specific for any betta. Clear (empty) and white come with a variety of patterns and color combinations. Long finned and short finned, male and female can have clear fins.
Plakat is a species type - short finned, such as the red guy up there.
Halfmoon is like my guy in my avatar.
Halfmoon PK has the 180 spread, but short PK fins.
And unsure where you get empty color space on the red guy.. he has some irid in his tail, that is where that bright color portions come from.. he has a tiny bit of clear around the edges, but that is just new growth.
Last edited by Myates; 12-19-2012 at 02:54 PM.