I wouldn't know where to start. I think, first, I would become a marine biologist and a scientist who studies the other kinds of water, whatever they're called.
I have always loved the aquariums that you could be "inside" of. Like the ones at the museum aquariums. So I guess a lot of my walls and floors would be tanks of all sorts. Let's not forget the waterbed! Just kidding!
Fish are people, too!
My tank is clean but my house is dirty.
To the world you may be one person. But to one person you may be the world.