Birgeria is a genus of extinct fish from your Late Triassic period of time, regarded for its large dimensions and extensive, slender physique. It had been a carnivorous predator that roamed historic seas, hunting smaller fish and invertebrates. A different compact fish appreciated in aquariums would be the Bladefin Basslet. https://pearlaquatics.my/how-do-aquarists-benefit-from-a-good-aquarium-shop/