Harlequin Rasbora
Trigonostigma heteromorpha
Also known as: Harlequin
Classic aquarium fish with a distinctive triangular black patch on its copper-orange body. Tight schooling behavior.
Tank Size
10 gal
minimum (20+ preferred)
Temperature
72–82°F
22–28°C
pH Range
6–7.5
water acidity
Max Size
2"
5.1 cm
Lifespan
5–8 years
typical in captivity
Swim Level
Middle
preferred zone
Care Notes
Very hardy and adaptable. One of the best beginner schooling fish.
Feeding
Flakes, micro pellets, and small frozen foods.
Compatible Tank Mates
Use Caution With
Incompatible With
Check Compatibility
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