Freshwater
Dwarf rasbora
Boraras maculatus
Danionidae, Rasborinae
Facts
Characteristics
- Length
- Up to 2.5 cm
- Body shape
- Streamlined
Care
- Group
- At least 6 together
- Smallest aquarium
- 16 liters
- Diet
- Missing
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Behavior
- Temperament
- Peaceful
- Swims
- Missing
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Water values
Smallest tank
16 liters45 × 23 × 15 cm · For 6 fish
Worked out from its length, as we don’t yet know what size tank it should have. Do you? Sign up and tell us in the app.
Try other measures in the appNative
Lives wild in Indonesia, Malaysia, Singapore, and Thailand.
Videos
The Endangered Fish of Thailand’s Peat Swamps and Forest Streams | EP 2 Betta in the Wild
Rodrigo SilvaMay 29, 2026
Cryptocoryne schulzei and Desmopuntius rhomboocellatus, Boraras maculatus in Singkep island
DiscoveryPlanetApr 15, 2016
Cryptocoryne yurithiae, Rasbora agilis and Boraras maculatus in Lingga island
DiscoveryPlanetApr 8, 2016
Boraras maculatus ボララス マキュラータ -DIscoveryPlanet-
DiscoveryPlanetMar 10, 2016
Tank mates
More about the species
About the species
Inhabits quiet forest streams with slow-flowing acidic water. Feeds on worms and small crustaceans. One of the world's smallest cyprinid species.
Source: FishBase
Other names
Other scientific names
- Boraras maculata
- Rasbora maculata
In other languages
- Kääpiörasbora
- Dwarf, Dwarf-spotted rasbora, Pygmy rasbora, Spotted rasbora
Articles
All articles
How many fish can I keep?4 min read
Why "one cm of fish per liter" falls short, and what adult size, schools, territory and swimming zones mean for how many fish a tank can hold.
Velvet and dropsy4 min read
Velvet is a fast-moving parasite. Dropsy is a sign that something is seriously wrong inside the fish. How to recognize them, and what you can do.
How to set up an Asian aquarium5 min read
Two aquariums from Southeast Asia: calm forest streams and peat swamps with soft, brown water, and fast mountain streams with cool, oxygen-rich water.
How to add new fish4 min read
From the store to the tank: how to get the fish used to your water, why you should add only a few at a time, and what to watch for in the first few days.