The Flying Fox comes from the Thailand, Sumatra and Borneo area. It is commonly confused with the Siamese Algae Eater or Siamese Flying Fox (Crossocheilus siamensis), the Otto and the Chinese Algae Eater (Gyrinocheilus aymonieri). The Flying Fox is more colorful than the Siamese Algae Eater. It has a black band running from its head to its tail, but the band is much thicker and darker in the tail than that of a Siamese Algae Eater. There is a golden stripe above the black horizontal band, which cannot be found in the Siamese Algae Eater. For a discussion of the differences, see the KRIB.
The Flying Fox can grow to 6 inches in the wild. The adult specimen is territorial and aggressive towards its own kind. Flying Foxes enjoy algae more when younger and do not have an appetite for red algae, which Siamese Algae Eaters do. They will eat common flake foods. There are no apparent sexual differences.