from http://www.greek-gods-and-goddesses.com/greek-god-poseidon.html 

                                                      Neptune god of the sea

 Neptune is the god of earthquakes,water,and horses. His weapon is the trident. He is 6'3 ft. tall,he has green eyes and white hair.Neptune weighs 625 lbs. Neptune is the brother of Jupiter and Hades. He was married to Amphitrite and had seven children.