HE SWALLOWED THE SMALL FISHES AT MY BIG AQUARIUM NICE GOLD COLOR

Oscar Fish (Astronotus ocellatus) are considered to be large aquarium fish, and they reach an average size of 10-12 inches (25-30 cm). However, they can grow much larger than this, depending on their environment and genetics. In fact, Oscar fish living in optimum conditions with good genetics can grow to a max size of 18 inches (46 cm).