Spray Paint On Acrylic Nails

I USED A FINGERNAIL FILE..GO OVER IT AND IT COMES OFF REALLY FAST\

Use non-acetone fingernail polish remover. I do all the time!

My son is a painter, of course he doesn't have acrylic nails, but I've seen him use the orange hand cleaner. Industrial type stuff found at Lowe's, Home Depot, walmart, etc. You might look at that, I don't think it has any harmful chemicals in it. He also has used a stiff brush.
Hope this helps a little.