Preparing basement floor for painting
#1

I am preparing my basement floor for painting,with one of the concrete paints from a big box, and confused about how to best prep the floor. Is acid etching really necessary? Is there a way to acid etch a floor that I can't simply hose down? There's a "floor primer" that I saw at my big box. Is it helpful to use a primer on a concrete floor prior to painting it with a concrete paint? Any suggestions are helpful!