This family goes from big fish to small ones. Groupers are hermaphroditic. All groupers mature first as females and produce eggs, then they change the sex to males with maturity to be breeders.
Black grouper size: between 1 and a half feet to max. 4 ft, the Tiger Grouper between 1 and 2 feet max. 3 and a half ft. Coney between 6 and 10 inch with a max. of 16 inch and the Rock Hind between 8 and 14 in. with a max. of 2 ft.