Rummy Nose Tetra – Brilliant Red-Headed Schooling Fish
The Rummy Nose Tetra (Petitella bleheri, formerly Hemigrammus bleheri) is a beautiful freshwater aquarium fish admired for its brilliant red head, shimmering silver body, and distinctive black-and-white striped tail.
Native to the tropical waterways of South America, this elegant tetra is especially popular among aquascaping enthusiasts for its exceptionally coordinated schooling behaviour.
When maintained in larger groups, Rummy Nose Tetras swim together in graceful formations, creating a stunning visual display in planted aquariums.
Their bright red facial coloration provides a striking contrast against lush green aquatic plants, while their distinctive tail markings add movement and visual interest.
These peaceful fish thrive in mature freshwater aquariums with stable water conditions, gentle to moderate water movement, and plenty of open swimming space.
Rummy Nose Tetras are particularly attractive in nature-style aquariums, where their synchronized swimming and vivid coloration create a beautiful, natural underwater scene.
With their peaceful temperament, unique appearance, and remarkable schooling behaviour, Rummy Nose Tetras are an excellent choice for established freshwater community aquariums.
Care Guide
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Parameter
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Details
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Scientific Name
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Petitella bleheri
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Former Scientific Name
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Hemigrammus bleheri
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Common Name
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Rummy Nose Tetra
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Other Names
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Firehead Tetra, Brilliant Rummy Nose Tetra
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Origin
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Rio Negro and Rio Meta basins, South America
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Adult Size
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Approximately 4–5 cm
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Temperature
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23–26°C
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pH
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5.5–7.0
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Water Hardness
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2–15 dGH; softer water preferred
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Recommended Tank Size
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100–120 L+
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Recommended Tank Length
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90 cm+
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Diet
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Omnivore
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Temperament
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Very Peaceful
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Care Level
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Intermediate
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Group Size
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10+; preferably 12–20
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Lifespan
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Approximately 5 years or longer
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Swimming Level
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Middle
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Water Flow
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Gentle to Moderate
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Aquarium Type
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Planted Aquarium / South American Blackwater
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Special Requirements
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Stable water parameters, group housing, good filtration
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