You can show a VT, but because all Betta standards call for even balance, the VT has a major fault in it's tail.
Host clubs can include a VT class if they want to take the time to judge, and if the judge is willing. They would not get the IBC points, but shown as a pet fish, the host club can give out a certificate for the winner.
I want Lone Star Bettas to have a VT/Pet fish class for those that are keepers of Betta, but that will be later :D
Betta Breeder 2006, Showing Betta 2008
Member of IBC, President of Lone Star Bettas
Hi my name is Lori and I'm a Betta Addict...