I don't have any fish yet to name. BUT, I already have names picked out. (sad isn't it) Kinda like picking names for your children before you have children.
I've named all my fish and shrimp. A few of them are:
BEW (pronounced Boo) for bug-eyed woos for my lawnmower blenny who is afraid of everything.
Freeway for my cleaner shrimp because of the stripe down his back and how fast he travels my tank.
Test 1, 2 and 3 for the chromis that I cycled the tank with over two years ago that are still going strong.