The semi-aggressive Arowana fish are powerful swimmers designed for his or her native South American Amazon river. These sleek, silver fish are streamlined, carnivorous predators which can expand up to 4 feet in size if supplied sufficient Place. Their muscular bodies feature unique “drawbridge” shaped mouths and very small tailfins. https://pearlaquatics.my/tips-to-keep-your-fish-healthy-in-a-tank/