Wild betta is actually just a nickname for hickey fish that live wild in the wild because the actual betta fish that is cultivated today is also originally a wild hickey. This betta fish can be found in swamp, rice field, ditch, and others.
What makes this wild hickey unique is its authenticity. That is, this betta has not been crossed so many shades and shapes are still natural. If lucky, you can even find a wild hickey with a very unique shape and has never been found before.