Shoal & Stem
75 Gallon Community Tank

Harlequin Rasbora

Trigonostigma heteromorpha

9 in the tank

Where it's from

Native to the Chantaburi, Chao Phraya, Endau, Gombak and 16 other river basins

Thailand, Malaysia, Laos, Indonesia and Singapore

Recorded as introduced in Colombia and Mexico

Native range: Global Register of Introduced and Invasive Species (CC BY 4.0); Tedesco et al. 2017 (CC0).

At a glance

Size
2 in
5 cm
Min tank
10 gal
38 L
Group
6+
Temp
72–81°F
22–27°C
pH
6.0–7.5
GH
18–214 ppm
1–12 dGH
Temperament
Peaceful
Swims
Middle
Lifespan
5–8 yrs

Ammonia 0 ppm and nitrate under 20 ppm.

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Everything about Harlequin Rasbora

Care guide, common diseases, tank mates, keepers' experiences and more