The semi-aggressive Arowana fish are highly effective swimmers built for their native South American Amazon river. These sleek, silver fish are streamlined, carnivorous predators that could expand up to 4 feet in length if provided more than enough Place. Their muscular bodies function unique “drawbridge” shaped mouths and small tailfins. https://pearlaquatics.my/how-to-choose-the-best-sobo-aquarium-pump-for-your-aquarium/