The Gertrude Rainbow, or Spotted Blue-eye Rainbowfish, is a small, beautifully patterned species known for its blue eyes and spotted fins. They thrive in planted nano tanks and are perfect for peaceful aquariums
Gertrudae Rainbowfish stay very small (around 2.5–3 cm), making them ideal for nano tanks. They display striking colours—blue eyes, spotted fins, and yellow or orange accents that intensify during group displays. They thrive best in groups of 8 or more, showing natural schooling and playful swimming behaviour.
They prefer densely planted tanks with floating plants, low–moderate flow, and stable warm water. These fish are peaceful and pair well with shrimp, small rasboras, micro-danios, and other nano community species. They enjoy micro-pellets, baby brine shrimp, daphnia, and high-quality flake foods. With good care, they live about 3–5 years.
Why have them
Gertrude Rainbowfish are tiny, colourful, and incredibly lively fish that brighten up any nano or planted aquarium.
Their spotted bodies, glowing blue eyes, and fluttering fins make them one of the most attractive micro-rainbows for peaceful community tanks.
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