Because 1988, the Adriatic Sturgeon has efficiently been lifted on fish farms along with the species is constantly restocked in Italy. The Smalltooth Sawfish is an interesting hunting fish, which receives its name from its extensive blade-like snout. While they seem like sharks, the Smalltooth Sawfish is linked to rays, https://www.slideshare.net/slideshow/how-to-set-up-your-first-aquarium-book-online/275795480