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Tilapia in Mississippi

Male and Female

What's the difference between male and female?

It is difficult to differentiate male and female tilapia when they are young (less than 3-4"). When the fish are larger, they can be separated by inspecting the genital papilla on the ventral or underside of the fish. The papilla of the male tends to be elongated with one opening. The papilla of the female tends to be wider, and has two openings, one of which is a transverse slit.