New Guinea Red Rainbowfish – Glossolepis incisus
Bring bold color and lively energy to your aquarium with the New Guinea Red Rainbowfish, also known as the Red Rainbowfish. Males display vibrant, fiery-red bodies that deepen with maturity, while females are more subdued in color, creating a striking contrast in groups. These active, schooling fish are perfect for larger community tanks where their shimmering hues and constant activity can truly shine.
Key Details:
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Scientific Name: Glossolepis incisus
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Common Name: New Guinea Red Rainbowfish, Red Rainbowfish
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Origin: Lake Sentani, New Guinea
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Size Purchased: 1.5" – 2.5"
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Adult Size: ~5" – 6"
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Type: Freshwater Rainbowfish
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Temperament: Peaceful, schooling
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Tank Size: 55+ gallons
Water Parameters:
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Temperature: 74–80°F
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pH: 6.5–7.5
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Hardness: Moderate
Diet:
Omnivorous. Thrives on high-quality flakes, small pellets, and frozen or live foods such as brine shrimp, bloodworms, and daphnia. A varied diet helps intensify their natural red coloration.
Care Notes:
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Best kept in groups of 6 or more to reduce stress and display their best colors.
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Provide plenty of open swimming space with some plants and driftwood for cover.
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Ideal for peaceful community tanks with other medium-sized fish.
Why Choose the New Guinea Red Rainbowfish?
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Brilliant red coloration that becomes more intense with age.
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Active schooling fish that bring nonstop movement and beauty.
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Hardy and adaptable, making them great for intermediate hobbyists.