Neon Color Moenkhausia costae – Elegant Brazilian Tetra with Shimmering Iridescence
The Neon Color Moenkhausia (Moenkhausia costae) is an attractive South American freshwater fish admired for its streamlined body, distinctive dark markings, and subtle metallic reflections.
Native to Brazil's São Francisco River system, this active tetra features a silvery body accented by a prominent dark lateral stripe and reflective scales that can display beautiful iridescent highlights under aquarium lighting.
The commercial name "Neon Color" emphasizes the fish's shimmering appearance, although colour intensity can vary with lighting, maturity, and individual specimens.
These social fish are best maintained in groups, where their coordinated swimming and active behaviour create an appealing display in spacious freshwater aquariums.
With their elegant body shape, interesting natural markings, and energetic personality, Neon Color Moenkhausia are an attractive choice for aquarists interested in distinctive South American freshwater fish.
Care Guide
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Parameter
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Details
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Scientific Name
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Moenkhausia costae
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Common Name
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Neon Color Moenkhausia
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Other Trade Name
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Signal Stripe Moenkhausia
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Origin
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São Francisco and Itapicuru River Basins, Brazil
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Adult Size
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Up to 7 cm standard length
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Temperature
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23–28°C
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pH
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6.0–7.5
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Water Hardness
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Approximately 4–12 dGH
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Recommended Tank Size
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120–150 L+
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Recommended Tank Length
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80–100 cm+
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Diet
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Omnivore
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Temperament
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Generally peaceful, active
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Care Level
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Easy to Intermediate
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Group Size
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8–10+ recommended
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Lifespan
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Approximately 5 years; estimated
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Swimming Level
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Middle / Upper
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Water Flow
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Gentle to Moderate
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Aquarium Type
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Spacious Planted Community Aquarium
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Special Requirements
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Open swimming space, stable water conditions, group housing
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