Do not use paint !! There is better way to do this and when ever you want to take the paint off it will take you forever to scrape that crap off and what a mess it's gonna make.
If you want smokey cloudy white you can use this
If you want it black then you can use this
I use both of them for my tanks you will get a processional look ,paint will look ghetto !
this is artscape
this is black limo tint
Easy to take off when ever you don't want it anymore