The Harlequin Rasbora is a small but stunning schooling fish known for its distinctive black triangular patch on the rear half of its body and shimmering copper-orange coloration. This peaceful species is a favorite among planted aquarium enthusiasts due to its natural schooling behavior and elegant appearance when swimming in large groups.
Harlequin Rasboras are active mid-water swimmers that look best when kept in groups of 8–12 or more. They bring a sense of natural movement and harmony to planted and biotope aquariums. They are relatively hardy but prefer soft, slightly acidic water with plenty of plants and subdued lighting.
Key Benefits:
- Beautiful copper-orange body with black triangle marking
- Peaceful and active schooling fish
- Excellent for planted aquariums
- Adds natural movement and life to the tank
- Hardy when kept in proper groups
- Suitable for nano and larger tanks
- Low maintenance and peaceful temperament
- Popular in community and biotope setups
They are best fed with small pellets, micro worms, and baby brine shrimp.




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