The zebrafish is a freshwater fish belonging to the minnow family (Cyprinidae) of the order Cypriniformes. Native to India and South Asia, it is a popular aquarium fish, frequently sold under the trade name zebra danio. It is also found in private ponds.
Zebrafish
A leopard danio
Zebrafish chromatophores, shown here mediating background adaptation, are widely studied by scientists.
FDA research used Zebrafish to show the effects of ketamine on neurological development.
Cyprinidae is a family of freshwater fish commonly called the carp or minnow family, including the carps, the true minnows, and their relatives the barbs and barbels, among others. Cyprinidae is the largest and most diverse fish family, and the largest vertebrate animal family overall, with about 3,000 species; only 1,270 of these remain extant, divided into about 200 valid genera. Cyprinids range from about 12 mm (0.5 in) in size to the 3 m (9.8 ft) giant barb. By genus and species count, the family makes up more than two-thirds of the ostariophysian order Cypriniformes. The family name is derived from the Greek word kyprînos.
Cyprinidae
Giant barbs (Catlocarpio siamensis) are the largest members of this family.
Rainbow shark, Epalzeorhynchos frenatum, a somewhat aggressive aquarium fish
Acheilognathus longipinnis: Acheilognathinae