The Harlequin Rasbora is a small, peaceful freshwater fish that is a favorite among aquarists for its striking coloration and active schooling behavior. Its copper-orange body is marked with a distinctive black triangular patch near the tail, giving it a “harlequin” appearance that stands out beautifully in planted aquariums.

Harlequin Rasboras are social fish that thrive in schools of six or more, which enhances their natural swimming patterns and reduces stress. They prefer well-planted tanks with open swimming areas, gentle filtration, and soft, slightly acidic to neutral water conditions.

These fish are easy to care for and are suitable for both beginner and experienced aquarists. They are omnivorous and will accept high-quality flakes, micro pellets, and occasional live or frozen foods. A varied diet helps maintain their bright coloration and overall health.

Scientific Name: *Trigonostigma heteromorpha*
Common Name: Harlequin Rasbora
Temperament: Peaceful
Adult Size: Up to 1.5–2 inches
Diet: Omnivore (flakes, pellets, live or frozen foods)
Water Conditions: 72–81°F, pH 6.0–7.5
Compatibility: Ideal for community tanks with other small, peaceful species

The Harlequin Rasbora is an active, colorful, and hardy fish that brings movement, charm, and elegance to any freshwater aquarium.