How about Enki, after the Sumerian god of water?
RpNation
Saccharine Cyanide
Flowiest D
Su-shi
Suum
At first I thought you said erotic, and I was going to suggest bringer of floods.
I'd probably go with Luz, based on the opal, and go so far as to represent their eyes with the Luz Opal: https://www.demilked.com/magazine/wp-content/uploads/2015/04/magnificient-stones-rocks-minerals-04.jpg
I'd probably go with Luz, based on the opal, and go so far as to represent their eyes with the Luz Opal: https://www.demilked.com/magazine/wp-content/uploads/2015/04/magnificient-stones-rocks-minerals-04.jpg