Red Line Axelrodi Rasbora (Sundadanio axelrodi "Red Line") - Live Fish

A brilliant nano fish with glowing red lines and peaceful schooling behavior — perfect for planted tanks!

The Red Line Axelrodi Rasbora is a tiny but stunning freshwater gem that brings life, color, and shimmer to small, peaceful aquariums. Known for its iridescent body and bold horizontal red stripe, this nano rasbora thrives in planted tanks and loves to school with its own kind.

Native to the peat swamp forests of Borneo and Sumatra, these fish do best in soft, slightly acidic water with gentle filtration and natural decor.

🔍 Quick Facts:

• Common Names: Red Line Axelrodi Rasbora, Sundadanio Rasbora

• Scientific Name: Sundadanio axelrodi "Red Line"

• Origin: Borneo and Sumatra (blackwater swamps)

• Size: ~0.75–1 inch (very small)

• Temperament: Peaceful, active schooling fish

• Lifespan: 3–5 years

• Care Level: Moderate (due to water parameters)

🏡 Ideal Aquarium Setup:

• Minimum Tank Size: 5–10 gallons (best in species-only or nano community tanks)

• Temperature: 72–80°F (22–27°C)

• pH Range: 5.0–7.0 (slightly acidic preferred)

• Water Hardness: Soft (0–6 dGH)

• Aquascape Tips:

  • Use driftwood, leaf litter, and live plants to mimic blackwater habitat

  • Gentle flow and dim lighting to enhance their natural iridescence

  • Best kept in schools of 8 or more for comfort and color display

  • Ideal tankmates: other nano fish (chili rasboras, pygmy corydoras, ember tetras)

🍽️ Diet:

Micro-predator (omnivore)

• Crushed high-quality micro pellets or nano flakes

• Frozen or live baby brine shrimp, microworms, and daphnia

• Needs small particle sizes due to tiny mouths

• Feed small amounts 1–2 times daily

🐣 Breeding Info:

• Egg scatterers — breed in soft, acidic water

• Use fine-leaved plants or spawning mops

• Adults may consume eggs; best removed post-spawning

• Fry require infusoria or liquid fry food initially

🌟 Fun Facts:

• Named in honor of ichthyologist Dr. Herbert R. Axelrod

• Their vivid red line becomes more intense in blackwater conditions

• Despite their size, they’re incredibly active and social

💡 Pro Tip:

To truly bring out their color, use blackwater extract or Indian almond leaves and maintain dim, natural lighting.

🔴 Red Line Axelrodi Rasboras are a captivating choice for nano aquariums — subtle elegance meets shoaling beauty!

🛒 Available now at Stillwater Aquaria – bring your tank to life with these glowing gems!