Garra rufa, also called doctor fish, nibble fish, kangal fish, and bonefish (in New England) is a small species of cyprinid fish that is native to rivers, streams, ponds and lakes in the Middle East. Since the early 21st century, Garra rufa have been integrated into a spa treatment where they feed on the skin of patients with psoriasis. While the doctor fish treatment has been found to alleviate the symptoms of psoriasis, the treatment is not curative, and no cure for psoriasis currently exists. The use of the fish as a spa treatment for the wider public is still widely debated on grounds of efficacy and validity.