DNA, I was thinking Aquastar, but that's not really an option now. Other ideas are:
PokeGirl (but that was taken.)
Lucky (But it's a bit too simple, so I'm thinking of something else.)
Moonsky
MoonAqua (but the shorthand is MA, so I'd rather not use it.)
Natural Leaf
Serperior (but EspsonROX has already taken it.)
A lot of the good ideas are already taken. Maybe you can suggest something?