Description
Native to the clear streams and swamp regions of Papua New Guinea, Red Neon Blue Eye Rainbowfish (Pseudomugil luminatus) is one of the most striking species in the Rainbowfish family. Their neon-red body glowed vividly under aquarium lighting, while their iridescent blue eyes added a unique pop of contrast. These fish are active schoolers, making them a centerpiece for any rainbow fish aquarium red neon display.
Red neon rainbowfish are a true nano rainbow freshwater fish, reaching only 1–1.2 inches (2.5–3 cm) in length. Despite their tiny size, their bold red body and metallic-blue eyes ensure they stand out in planted aquariums. Males often display even brighter colors with elongated fins during breeding displays, while females remain slightly smaller with subtler tones.
Red neon blue eye rainbowfish are peaceful and highly active schooling fish, thriving in groups of 8 or more. They make excellent community fish, best paired with other small, gentle species such as Rasboras, Tetras, Guppies, and freshwater shrimp. Their constant swimming and playful nature add movement and color to every corner of the tank, making them a favorite in neon rainbow fish community aquariums.
At Splashy Fish, our Red Neon Blue Eye Rainbowfish for sale and other Rainbowfish for sale are tank-bred with expert care and shipped with Live Arrival Guarantee. We also offer a wide variety of betta fish for sale, freshwater fish for sale, aquarium plants for sale, and other aquarium supplies to complete your setup.
What You Can Expect From This Fish
Stunning neon-red body with striking blue eyes
Small adult size (1–1.2 inches), perfect for nano and planted aquariums
Peaceful schooling fish that thrive in groups of 8+
Hardy and beginner-friendly freshwater rainbow fish
Ideal centerpiece for aquascaped and community aquariums
Recommended Tank Parameters
Tank Size: Minimum 10 gallons for a small school
Temperature: 74°–80°F (23°–27°C)
pH: 6.0–7.5
Hardness: 5–12 dGH
Filtration: Gentle flow with clean, well-oxygenated water
Care Guidelines
Diet: Omnivorous. Provide high-quality micro pellets, crushed flakes, and supplements with live or frozen foods such as baby brine shrimp, daphnia, and bloodworms to enhance color and breeding activity.
Tank Setup: Use soft sand or fine gravel, dense live plants, driftwood, and open swimming areas. Subdued lighting and floating plants can intensify their neon coloration.
Behavior: Social, active, and peaceful. Best kept in groups of 8–12 or more for healthy schooling behavior.
See more details on How to Care for Rainbowfish here.
Red Neon Blue Eye Rainbowfish Frequently Asked Questions (FAQs)
What are the differences between Red Neon Blue Eye and Blue Eye Dwarf Rainbow fish?
The Red Neon Blue Eye Rainbowfish and the Blue Eye Dwarf Rainbowfish are two different species of blue eye rainbowfish. The Red Neon variety displays a brilliant red to orange body with bright blue eyes, while the Blue Eye Dwarf Rainbowfish has a yellow-golden body with spotted fins and iridescent blue eyes. Red Neon Blue Eye Rainbowfish are slightly smaller, reaching about 1–1.2 inches, while Blue Eye Dwarfs grow closer to 1.5–2 inches. Both are peaceful schooling fish, but their coloration and patterns make them visually distinct in the aquarium.
Are Red Neon Blue Eye Rainbow fish easy to care for?
Yes, Red Neon Blue Eye Rainbowfish are considered easy to care for and are suitable for both beginner and experienced aquarists. They are hardy, peaceful, and thrive in well-planted community aquariums with clean, stable water conditions. Feeding them is simple, as they readily accept high-quality micro pellets, crushed flakes, and small live or frozen foods. When kept in groups of 8 or more, they show their brightest neon colors and most natural behavior.
How do Rainbow fish breed?
Rainbowfish, including Red Neon Blue Eye Rainbowfish, are egg scatterers. During spawning, males display brighter colors and court females with fin displays. The female lays small adhesive eggs on plants, moss, or spawning mops, where they remain until hatching. The eggs typically hatch within 7–10 days, depending on water temperature. In a community aquarium, eggs and fry may be eaten, so dedicated breeders often move eggs to a separate rearing tank. Feeding fry with infusoria or baby brine shrimp ensures proper growth.
