The Doctor Fish (Red Garra, Garra rufa) is a small freshwater fish native to river basins in the Middle East, particularly in Turkey, Syria, Iraq, and Iran. Typically, these fish measure around 1 to 2 inches in length. They are characterized by their olive-grey color with a distinctive reddish tinge along their ventral surfaces. Known for their unique behavior of nibbling on dead skin, they are often used in spa treatments for natural exfoliation.