The semi-aggressive Arowana fish are strong swimmers constructed for their native South American Amazon river. These sleek, silver fish are streamlined, carnivorous predators that can expand around four toes in size if given plenty of space. Their muscular bodies element special “drawbridge” formed mouths and tiny tailfins. Plecostomus catfish, or https://pearlaquatics.my/how-to-maintain-discus-fish/