Hundreds of chin chin, or “doctor fish,” are hard at work this week trimming off dead skin and softening the feet of patrons at a Kent salon.

Kent Station’s Peridot Nail Salon is the first in the Northwest to offer a pedicure accomplished by hundreds of tiny toothless fish who nibble away at customers’ feet.

Peridot co-owner Tuyet “Tweety” Bui said the technique – which involves a 15-minute soak in a warm water tank filled with fish – tickles but doesn’t harm customers’ feet. The fish leave healthy skin behind.