Super Red Ruby Tetra – A Tiny Jewel of the Freshwater Aquarium
Add a brilliant splash of ruby-red colour to your aquascape with the Super Red Ruby Tetra (Axelrodia riesei), a beautiful miniature freshwater fish prized for its rich red appearance and delicate size.
Native to the blackwater streams of Colombia, this fascinating tetra is especially attractive in mature planted aquariums with dark substrates, natural driftwood, and gentle lighting.
Its compact body and warm ruby-red tones create a striking contrast against lush green aquatic plants, making it a wonderful choice for carefully designed nano aquascapes.
Super Red Ruby Tetras thrive in peaceful groups, where their subtle movements and vibrant coloration bring life to the aquarium.
For the best colour development, provide soft, slightly acidic water, shaded areas, and a varied diet of appropriately sized foods.
Ideal for dedicated nano-fish enthusiasts, the Super Red Ruby Tetra combines elegant beauty, peaceful behaviour, and remarkable colour in a truly miniature package.
Care Guide
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Parameter
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Details
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Scientific Name
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Axelrodia riesei
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Common Name
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Super Red Ruby Tetra
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Origin
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Colombia, Upper Río Meta
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Adult Size
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Approximately 1.5–2 cm
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Temperature
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20–28°C
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pH
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4.0–6.5
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Water Hardness
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1–5 dGH
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Recommended Tank Size
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Approximately 54 L+
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Recommended Tank Base
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60 × 30 cm+
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Diet
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Micropredator
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Temperament
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Peaceful, Shy
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Care Level
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Intermediate
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Group Size
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8–10+ recommended
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Lifespan
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Approximately 3–4 years
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Swimming Level
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Middle / Lower
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Water Flow
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Gentle
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Aquarium Type
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Mature Planted Aquarium / Blackwater
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Special Requirements
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Soft acidic water, subdued lighting, stable water quality
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