How much should you tip for acrylic nails and a pedicure with white tips?

I'm just wondering what you guys would tip. the standard 15-20%?How much should you tip for acrylic nails and a pedicure with white tips?
it depends on how good of the nails and the job are. if they suck give them a dollar. if they r good give em' 10 dollars.How much should you tip for acrylic nails and a pedicure with white tips?
20% of the bill.
Always 20 unless it's THAT bad.