I do acrylic nails and 1 or 2 always fall off after a couple of days. why?

make sure to get no air bubbles under them , cause this makes them fall offI do acrylic nails and 1 or 2 always fall off after a couple of days. why?
Dont know? shouldnt you know?I do acrylic nails and 1 or 2 always fall off after a couple of days. why?
I'd say if it's a store bought, they are only supposed to be on for a few days because you can actually develop a nail fungus if you leave them on for too long. Now if you go to a salon, the nail stuff that they put on is supposed to last for more than a week.