Harlequin Rasbora (Rasbora heteromorpha)
Description
The Harlequin Rasbora is a timeless favorite in the aquarium hobby, admired for its distinctive black triangular marking and shimmering orange-pink body. These peaceful schooling fish originate from Southeast Asia and thrive in well-maintained community tanks. Their active swimming and synchronized schooling behavior add a lively and harmonious dynamic to any aquarium.
Key Features
- Scientific Name: Rasbora heteromorpha
- Common Name: Harlequin Rasbora
- Size: Up to 2 inches (5 cm)
- Temperament: Peaceful, schooling fish
- Lifespan: 5-6 years with proper care
- Diet: Omnivorous – prefers high-quality flakes, micro pellets, and occasional live or frozen treats like brine shrimp and daphnia.
- Tank Level: Mid to upper levels of the tank
Tank Requirements
- Tank Size: Minimum 10 gallons for a small group (preferably 6 or more)
- Water Temperature: 72°F to 81°F (22°C to 27°C)
- pH Range: 6.0 to 7.5
- Water Hardness: 2-15 dGH
- Substrate: Dark substrates enhance their vibrant coloration.
- Tank Setup: Include live plants, driftwood, and open swimming areas to create a natural and comfortable environment.
Care Tips
- Keep in schools of at least 6-8 individuals to encourage natural behavior and reduce stress.
- Perform regular water changes to maintain stable water conditions.
- Use gentle filtration to avoid creating strong currents, as they prefer calm water.
Compatibility
Harlequin Rasboras are ideal for peaceful community tanks and get along well with species such as:
- Neon Tetras
- Corydoras Catfish
- Honey Gouramis
- Cherry Shrimp
Breeding Notes
Harlequin Rasboras are egg layers and prefer to spawn on the undersides of broad-leaf plants. A separate breeding tank with soft, slightly acidic water and plenty of plant cover increases the likelihood of successful breeding.
Why Choose Harlequin Rasboras?
The Harlequin Rasbora’s striking appearance, easy care, and harmonious temperament make it an excellent choice for aquarists of all levels. Their schooling behavior and vibrant colors bring a sense of energy and unity to any aquarium setup.
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Great shipping!
Fish arrived overnight and in perfect health.
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Nice fish
Bought 15 to add to my existing school of twenty-something. They all arrived fine and in very good health
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Great, lively fish
They adapted easily to their new tank. They ate shortly after being introduced and really liven up my tank!
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Schooling fish are cool
underdog fish i keep inside planted tank. good to watch.
