Fish Pedicure
The media love doing stories on this! The fish pedicure uses a small fish to eat the callus and dry skin on the foot. A number of spas around the world are offering this approach and it is becoming more popular. As to how effective it is, I do not know. I have not tried it, but do see a lot of testimonials on websites for it and they love it.
There are concerns about the infection risks from the water and the fish, which may or may not be valid. Health regulatory authorities are looking closely at this issue and some local agencies have banned the practice for that reason. As log as precautions are taken for a fish pedicure (eg no breaks in the skin), this should not be a problem or an issue for concern.