The Silver Dollar fish, scientifically known as Metynnis hypsauchen, is a popular freshwater fish species that is native to the rivers and streams of South America, particularly the Amazon River basin. It is named after its round, disc-like shape, which resembles a silver dollar coin.
Appearance: Silver Dollar fish have a distinctive shape and coloration. They have a laterally compressed body, which gives them a disk-like appearance. They are usually silver in color, hence the name, and have a high degree of reflectivity, making them shimmer under aquarium lighting. They have a black or dark vertical stripe that runs horizontally through the center of their bodies. Their fins are usually transparent or have a slight reddish tint.
Size: When fully grown, Silver Dollar fish can reach an average size of about 4-6 inches (10-15 cm) in length. However, some individuals can grow slightly larger, reaching up to 8 inches (20 cm) in exceptional cases.