Tank setup
Size the aquarium to Harlequin Rasbora's adult size and activity level. Match décor to natural behaviour — plants, rockwork, or open swimming room as needed.
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Freshwater Fish
Other Community Fish
Common
Trigonostigma heteromorpha
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What to know before you buy.
The Harlequin Rasbora is a classic community fish, cherished for its metallic, coppery-orange body and distinct black triangular patch. They are a peaceful and hardy schooling fish that adds a touch of elegance and color to any aquarium. They thrive in soft, slightly acidic water, typical of a planted tank.
Key traits
Select a tank to see how this species fits.
Everything you need to keep Harlequin Rasbora healthy in a South African setup.
Size the aquarium to Harlequin Rasbora's adult size and activity level. Match décor to natural behaviour — plants, rockwork, or open swimming room as needed.
Keep pH 6–7.5 and 22–27°C. Stable parameters matter more than chasing perfect numbers — acclimate new arrivals slowly.
Harlequin Rasbora is an omnivore. Feed a varied diet appropriate for freshwater fish — quality flakes, pellets, or frozen foods sized to the mouth.
Harlequin Rasbora is generally peaceful. Keep in a group where possible for natural behaviour.
Pair with similarly sized peaceful tankmates in freshwater fish. Avoid fin-nippers or species that outgrow this fish.
Breeding notes for Harlequin Rasbora vary by line and water chemistry — ask your local shop about proven pairs in SA.
From hobbyists across SA.
Price trends and buyer demand — data only FishHub tracks.
SA price range this month: R35–55 · Average: R46
This data is unique to FishHub
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Species that typically work alongside Harlequin Rasbora in a similar setup.
Clown Killifish
Epiplatys annulatus
Black Tiger Dario
Dario sp. ‘Myanmar’
Australian Rainbowfish
Melanotaenia splendida
Golden Wonder Killifish
Aplocheilus lineatus
Boeseman's Rainbowfish
Melanotaenia boesemani
Bluefin Killifish
Lucania goodei
Giant Gourami
Osphronemus goramy
Kissing Gourami
Helostoma temminckii