The spotted danio or dwarf danio (''Danio nigrofasciatus'') is a

tropical The tropics are the regions of Earth surrounding the equator, where the sun may shine directly overhead. This contrasts with the temperate or polar regions of Earth, where the Sun can never be directly overhead. This is because of Earth's ax ...

is a small freshwater

ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of sk ...

belonging to the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Danionidae The danionins are a group of small, minnow-type fish belonging to the family Danionidae. Species of this group are in the genera clades ''Danio'' and '' Devario'' (which also includes ''Chela'', ''Laubuka'', ''Microdevario'', and ''Microrasbora ...

. Originating in northern

Myanmar Myanmar, officially the Republic of the Union of Myanmar; and also referred to as Burma (the official English name until 1989), is a country in northwest Southeast Asia. It is the largest country by area in Mainland Southeast Asia and has ...

, this fish is sometimes found in community tanks by fish-keeping hobbyists. It grows to a maximum length of to . In the wild, the spotted danio is found in rivers in a

climate and prefers water with a pH of 6.5 – 7.0 and a hardness of 5.0 – 12.0 dGH, and an ideal temperature range of . The spotted danio is oviparous (an egg layer).

References

External links

''Danio nigrofasciatus''
nigrofasciatus Fish of Myanmar Fish described in 1870 Taxa named by Francis Day {{Danioninae-stub