Hydros was one of the first primordial gods
Hydros was one of the children of the earth goddess Gaea (though other accounts say he arose from Chaos). He was the protogenos of water, and covered his mothers surface with the oceans, seas and lakes. With Gaea they produced Chronos and Ananke. These two in turn created Phanes, and the four ordered elements of heaven (fire), earth, air and sea (water).