No, wait, Wal-Mart should not be allowed to sell ANY living creature.
http://i260.photobucket.com/albums/ii30/Kricketune/cruelty.png
That is a poor betta I recently bought from our local Wal-Mart. It is a MALE. He is a plakat, a shorter finned variety of betta that is usually labeled as a female by ignorant stores. The long tailed males that are most commonly kept as pets are veil tails. You cannot tell a male betta from a female betta by their fins alone. This is why I suggest ignoring all labeling and checking for yourself. Females will have an ovipositor, a small, dangling tube between their belly fins and their gills - males will