Nails and Hair in BB

From Tuesdays episode I see Baked Potatoes nails they look so nicely done. Do they do their own nails in there. Especially with acrylics as I think Sarah has acrylics on (could be wrong) I would of had thought they would of had overgrown by now. And Lily had nails on, how did she remove them all I would of had thought she would have half of them on and half off... knowing lilly... so is there someone who does their maintainance.