Harlequin Rasbora


The Harlequin Rasbora is a small, peaceful, and brightly colored fish, perfect for adding a splash of vibrancy to your aquarium. With an easy care level, they are suitable for beginners. They grow up to 5 cm and prefer a warm, slightly acidic environment. Ideal for community tanks, these schooling fish display their best colors and behaviors when kept in groups. Regular feeding with a varied diet and maintaining a well-planted tank will keep these delightful fish thriving.

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The Harlequin Rasbora, a vibrant and lively addition to any freshwater aquarium, is renowned for its distinctive, almost triangular black patch and shimmering orange body. Originating from the soft, acidic waters of Malaysia, Singapore, and Sumatra, these small, schooling fish are an excellent choice for both novice and experienced aquarists.

Maximum adult size: Typically, Harlequin Rasboras reach a size of about 4-5 cm, making them a suitable choice for small to medium-sized aquariums.

Temperament: Peaceful and sociable, they thrive in groups of six or more, displaying their best colors and behaviors when comfortably shoaling with their kind.

Difficulty of care: Easy. These hardy fish are adaptable and can tolerate a range of conditions, making them ideal for beginners.

Preferred Temperature: They prefer warmer waters, thriving in temperatures between 22°C to 28°C.

Preferred pH of water: A slightly acidic to neutral pH, ranging from 6.0 to 7.0, mimics their natural habitat and promotes optimum health.

Type of breeding: Egg layer. Breeding Harlequin Rasboras can be a rewarding experience, although it requires a separate breeding tank with similar water conditions and fine-leaved plants for egg deposition.

In terms of diet, Harlequin Rasboras are not fussy eaters. They accept a wide variety of foods, including flake, live, and frozen foods such as daphnia, brine shrimp, and mosquito larvae. Regular feeding of small amounts ensures they maintain their vibrant coloration and energy.

A well-planted aquarium with open swimming spaces and subdued lighting is ideal for these fish. Regular maintenance, including partial water changes, will help keep these delightful fish healthy and active.


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