Doctorfish

The red garra (Garra rufa), also known as the doctor fish or nibble fish, is a species of cyprinid native to a wide range of freshwater habitats in subtropical parts of Western Asia. This small fish typically is up to about 14 cm (5.5 in) in total length, but some individuals can reach as much as 24 cm (9.5 in). In the wild, G. rufa feeds on detritus, algae, and tiny animals (arthropods and other zooplankton).