The semi-aggressive Arowana fish are effective swimmers created for their indigenous South American Amazon river. These modern, silver fish are streamlined, carnivorous predators that can grow as many as 4 ft in size if supplied enough House. Their muscular bodies feature distinctive “drawbridge” formed mouths and very small tailfins. Stingrays https://pearlaquatics.my/3-must-have-things-while-building-an-aquarium/