The semi-aggressive Arowana fish are highly effective swimmers designed for his or her native South American Amazon river. These smooth, silver fish are streamlined, carnivorous predators that may expand around 4 toes in size if specified adequate space. Their muscular bodies feature unique “drawbridge” formed mouths and very small tailfins. https://pearlaquatics.my/what-kind-of-services-facilities-you-can-receive-from-an-online-aquarium-shop/