Wild Betta Imbellis BettaBetta Imbellis have been long thought to be peaceful and can be housed in pairs or groups Known as the peaceful or Cresecent Betta in the hobby, Betta imbellis is a close relative of the hobby classic Siamese Fighting Fish and is found in shallow swamps and rice paddies throughout Southern Thailand and Malaysia. Unlike Betta splendens, which has been selectively bred for long and extravagant fins for the pet trade, this species is still considered a