Characteristics
They are native to the fresh water rivers and streams of Southeast Asia, but many species are brightly colored, and are available as aquarium fish worldwide. A number of the species, only recently discovered in remote inland areas of Myanmar, do not yet have scientific names.
They have two pairs of long barbels, and are generally characterised by horizontal stripes (with the exception of the glowlight danio, panther danio and black barred danio which have vertical bars). They range from 4–15 cm (1.75–6 in) in length. They generally do not live for more than two to three years, and are probably annual fish in the wild.
In the wild, these fish consume various small aquatic insects, crustaceans, and worms, as well as plankton in the case of fry.
Read more about this topic: Danio