Keeping Neon Green Rasbora (Microdevario kubotai) in Your Home Aquarium

Neon Green Rasbora, also known as Kubotai Rasbora or Green Rasbora, are captivating little fish that can add a vibrant touch to your home aquarium. Their eccentric green and yellow bodies make them stand out, and a well-established group of Neon Green Rasboras can become the center of attention in any tank.

Neon Green Rasbora Care Guide

1. Tank Setup and Environment:

  • Origin: These fish hail from the rivers and streams of Southeast Asia, particularly Thailand and Myanmar.
  • Water Parameters:
    • Temperature: Maintain a range of 68-80.6°F (20-27°C).
    • pH: Keep the water slightly acidic to neutral, around 6.0-7.0.
    • Water Flow: Neon Green Rasboras prefer gentle water flow, mimicking their natural habitat.
    • Vegetation: Set up a planted tank with areas of dense growth. Floating plants can help reduce bright light.
    • Driftwood: Adding driftwood provides hiding spots and may help lower pH.
  • Tank Size: A minimum of 15 gallons (54 liters) is suitable for a small group of Neon Green Rasboras.

2. Schooling Behavior:

  • Keep Neon Green Rasboras in groups of at least 8 individuals. More is better.
  • A well-established school feels safer and displays better coloration.

3. Tank Mates:

  • Compatible with other peaceful community fish such as rasboras, tetras, and danios.
  • Avoid aggressive or large tank mates.

4. Feeding:

  • Neon Green Rasboras are omnivorous. Offer a varied diet including high-quality flakes, pellets, and live or frozen foods.
  • Feed small amounts multiple times a day.

5. Breeding:

  • These fish are egg scatterers. Provide fine-leaved plants or spawning mops for them to lay eggs.
  • Separate adults from eggs to prevent predation.
  • Fry are tiny and need infusoria or specialized fry food.

6. Health and Disease:

  • Neon Green Rasboras may be prone to diseases such as ich, velvet, and fungal infections.
  • Maintain good water quality and avoid sudden changes.


Neon Green Rasboras may not be the hardiest fish, but with proper care and attention, they can thrive and become a delightful addition to your aquarium. Their vivid colours and schooling behaviour make them a joy to watch. Remember to create a well-planted, peaceful environment, and enjoy the beauty of these charming little fish! 🌿🐟

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