Oscar. Description Young fish have wavy, white and orange ... Marsh-type habitats with man-controlled water levels have the largest oscar populations although they are found in lesser numbers in ...

The largest a pet Oscar fish could grow is 16 inches, and they are capable of living from 10 to 20 years, Lane said. He estimated this fish is just over a year old.

The largest a pet Oscar fish could grow is 16 inches, and they are capable of living from 10 to 20 years, Lane said. He estimated this fish is just over a year old.