The kissing loach, or Parabotia curtis, is thought in Japan given that the Ayumodoki and belongs for the Botiidae relatives recognized for their ray-like fins. Picture Editorial Credit: Wikimedia Commons The Satan’s Hole Pupfish is one of the rarest fish in the world, found only in a single, distant location. https://www.slideshare.net/slideshow/how-to-enhance-your-fish-pond-pearl-aquatics/276685102