Details
Harlequin Rasbora (Trigonostigma heteromorpha) – Peaceful Schooling Jewel
Description:
The Harlequin Rasbora is a classic community fish admired for its striking copper-orange body and distinctive black triangular patch. Native to the calm, shaded waters of Southeast Asia, this peaceful species adds beautiful contrast and synchronized schooling motion to planted aquariums. Their shimmering colors and graceful swimming make them a favorite among aquascaping enthusiasts and beginner hobbyists alike.
Care Level: Easy
Temperament: Peaceful, schooling
Size: 1.5–2 inches
Lifespan: 4–6 years
Diet: Omnivorous – accepts quality flakes, micro pellets, and frozen or live foods such as daphnia and brine shrimp. A varied diet enhances color and vitality.
Tank Size: Minimum 15 gallons
Water Parameters:
Temperature: 74–80°F (23–27°C)
pH: 6.0–7.5
Hardness: Soft to moderately hard
Behavior & Compatibility:
Harlequin Rasboras are peaceful, active schooling fish best kept in groups of six or more. They thrive in community tanks alongside tetras, guppies, corydoras, and other gentle species. Their cooperative nature and balanced temperament make them an ideal centerpiece for planted aquariums.
