Description
Chilli Rasbora (Boraras brigittae) – A Tiny Flame for Nano Tanks
The Chilli Rasbora (Boraras brigittae), also known as the Mosquito Rasbora, is a vibrant nano fish treasured for its intense red coloration and peaceful nature. Native to the blackwater streams of Borneo, this miniature species thrives in densely planted tanks with soft, acidic water. Its small size and schooling behavior make it an ideal choice for nano aquariums and aquascaped setups.
When kept in groups of 10 or more, Chilli Rasboras become more confident and display richer, fiery colors—especially against a dark substrate or in dim lighting.
Key Features:
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Latin Name: Boraras brigittae
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Common Name: Chilli Rasbora, Mosquito Rasbora
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Coloration: Deep red body with a subtle dark midline stripe
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Temperament: Peaceful, shy, and highly social
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Size: Up to 0.75 inches
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Tank Requirements: Minimum 5 gallons; best in heavily planted, low-flow environments with soft, slightly acidic water
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Diet: Omnivorous—powdered flakes, micro pellets, infusoria, and baby brine shrimp
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Compatibility: Ideal with other gentle nano species; thrives in groups of 10 or more
Tips:
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Add Indian almond leaves or botanicals to create natural tannin-stained water.
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Use a sponge filter or gentle flow to avoid stressing these delicate fish.
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Dark backgrounds and substrates enhance their vivid red color.
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Maintain stable water parameters to prevent stress or illness.
Why Choose This Fish?
The Chilli Rasbora is a favorite for aquascapers and nano tank enthusiasts thanks to its vivid coloration, gentle nature, and striking contrast in planted environments. It’s an excellent choice for anyone seeking a visually stunning, low-maintenance species that adds elegance and energy to small aquariums.
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