Tanichthys micagemmae is a species of freshwater fish. It is a member of the carp family (family Cyprinidae) of order Cypriniformes. It was only discovered in 2001, in a tributary of the Bến Hải River in Quảng Bình Province, Vietnam. The species is sold in England under the common name Vietnamese cardinal minnow. It is known in Finnish as juovakardinaalikala (striped cardinal fish), kardinaalikala (cardinal fish) being the White Cloud Mountain minnow.