Barbs are energetic fish that faculty in groups of not less than five and can't be retained with gradual or weak tank mates as they can be very reckless. Graphic Editorial Credit score: Wikimedia Commons The Devil’s Gap Pupfish is probably the rarest fish on the globe, located only in https://www.diigo.com/item/note/9tt3x/b27r?k=2b3f4d10222e0e076abad039c47f0ae0