The lifespan of the Oscar fish usually can reach around 10 years. The Oscar fish is a common ornamental fish, and its lifespan is of medium length among ornamental fish. Compared with some other ornamental fish, the Oscar fish has a relatively long lifespan. For example, the lifespan of the guppy is only 1 to 2 years, while the lifespan of the arowana can reach around 30 years.
The lifespan of the Oscar fish is affected by multiple factors, including water quality, diet, and living environment. In order to extend the lifespan of the Oscar fish, it is recommended to provide good water quality, a balanced diet, and a suitable living environment.