Why are fish called fishes?

The word 'fish' is both singular and plural in the English language. There is no need to add an 's' to make it plural. When referring to multiple fish, the correct term is 'fish'. For example, instead of saying, 'I caught two fishes,' you would say, 'I caught two fish.' The word 'fishes' is an outdated term and is seldom used in modern speech or writing.