The Neon Green Rasbora (Microdevario kubotai) is a stunning, semi-translucent nano fish celebrated for its striking neon-yellow-green spine that catches and reflects ambient aquarium light. Highly active and peaceful, it brings an electric flash of color to planted freshwater setups, making it a favorite among nano-tank enthusiasts and beginner aquarists alike.

Short Description & Highlights

Microdevario kubotai is a remarkably peaceful shoaling fish that typically reaches a maximum size of less than an inch. Exhibiting a slender body with a glowing golden-green stripe along its dorsal ridge, it thrives best when kept in groups. Its hardy nature, small bioload, and peaceful disposition make it a wonderful addition to community aquariums and planted desktop nano tanks.

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Detailed Beginner Care Guide

1. Aquarium Setup & Schooling

As a strict shoaling species, Microdevario kubotai must be kept in a group of at least 6 to 8 individuals (though 10 or more is preferred) to feel secure and exhibit natural, vibrant schooling behavior. Because of their tiny size, a well-planted aquarium of 10 gallons or larger serves as an ideal home. Ensure the tank features a secure lid, as these active little swimmers can occasionally jump.

2. Tankmates & Community Compatibility

Their gentle and non-aggressive demeanor makes them exceptionally well-suited for peaceful community tanks. They can be safely housed with other small nano fish (such as Chili Rasboras or Ember Tetras), freshwater shrimp (like Cherry Shrimp), and small bottom-dwellers like Corydoras. Avoid housing them with large or aggressive fish that might view them as a snack.

3. Feeding & Nutrition

Feeding is straightforward for beginners. They readily accept high-quality crushed flakes, micro-pellets, cyclop-eeze, and freshly hatched baby brine shrimp. Due to their very small mouths, food particle size is critical; ensure flakes or granules are fine enough for them to consume comfortably.