Danio
A genus of small striped freshwater fish from Asia kept in aquaria.
Danio is a group of small freshwater fish native to South and Southeast Asia. They are widely recognized for their horizontal stripes and are popular in the aquarium trade. The name derives from a Bangla word for rice fields.
- Name comes from Bangla word dhani meaning rice field.
- Francis Hamilton described the genus in the early 1800s.
- Fish eat small aquatic insects, crustaceans, and worms.
- Popular choice for home aquariums.
- Brachydanio is now a synonym of Danio.
What it is
Danio comprises small freshwater fish belonging to the family Danionidae. These animals typically display distinct patterns such as horizontal stripes, rows of spots, or vertical bars along their bodies. Some members possess two pairs of long barbels near their mouths. The common name originates from the Bangla word dhani, which translates to rice field. This group includes well-known varieties like the zebrafish and the glowlight danio.
Where it lives
These fish are found across South and Southeast Asia. They inhabit freshwater environments within this region.
How it lives
Members of this genus feed on various small aquatic organisms including insects, crustaceans, and worms. They are generally characterized by their striped appearance.
Fish and people
Danio species are commonly kept in home aquaria due to their striking visual patterns. The genus has a taxonomic history involving reclassification. Francis Hamilton described the genus in the early nineteenth century. Later revisions merged smaller genera into Danio, while larger species were moved to Devario.
Status and threats
No conservation status or threat information is available in the provided material.
Questions people ask about Danio
What does the name Danio mean?
The name Danio comes from the Bangla word dhani, which means of the rice field.
What do Danio fish eat?
They consume various small aquatic insects, crustaceans, and worms found in their freshwater habitats.
Are Danio fish good for aquariums?
Yes, they are commonly kept in aquaria because of their distinctive horizontal stripes and spotted patterns.
Who first described the Danio genus?
Francis Hamilton described the genus in the early nineteenth century, identifying species like D. dangila and D. rerio.
Good reading and sources
The facts on this page come from the Wikipedia article "Danio", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). EveryFish rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.
It may contain mistakes, and figures change over time. Nothing here is investment or buying advice. If something is wrong, tell us. Last refreshed 2026-11-15.
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