Neon Blue Rasbora (Sundadanio axelrodi)
Sundadanio axelrodi
Origin: Indonesia, Malaysia (Borneo, Sumatra, Riau Archipelago)
Water Parameters
Quick Stats
- Max Size
- 2 cm
- Min Tank
- 30 L
- Lifespan
- 2-4
- Swimming Level
- mid
- Schooling
- Yes (15–30+)
- Diet
- Omnivore; micro-pellets, baby brine shrimp nauplii, crushed flake
- Temperament
- Peaceful; keep only with similarly tiny, gentle species
About
Sundadanio axelrodi is a diminutive gem from the blackwater peat swamps of Borneo, Sumatra, and the Riau Archipelago, displaying an intensely iridescent electric-blue lateral stripe against a deep red-brown body. Blackwater conditions with very soft, acidic water and tannins are essential to unlock its full coloration potential. A mesmerizing nano species that is best displayed in groups of 15 or more, where its collective iridescence creates a sparkling, shimmering cloud effect.
Care Guide
Maintain very soft, acidic blackwater conditions using RO water conditioned with Indian almond leaves, peat, or driftwood. Keep in groups of 15+ in a well-planted nano tank with dim lighting. Feed micro-pellets, baby brine shrimp nauplii, and crushed flake. Avoid large or boisterous tank mates.
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