RED NEON RAINBOWFISH (Pseudomugil luminatus)

Red Neon Rainbowfish (Pseudomugil luminatus)

The Red Neon Rainbowfish is a small but spectacular freshwater fish admired for its brilliant red-orange body, shimmering blue eyes, and energetic schooling behaviour. Native to the slow-moving streams and wetlands of New Guinea, this peaceful species is an excellent choice for planted aquariums and nano community tanks.

When kept in groups, males display their brightest colours and perform beautiful courtship displays, making them a captivating addition to any aquarium.

Quick Facts

• Scientific Name: Pseudomugil luminatus
• Common Name: Red Neon Rainbowfish
• Origin: New Guinea
• Adult Size: 1–1.5 inches (2.5–4 cm)
• Lifespan: 3–5 years
• Temperament: Peaceful
• Care Level: Easy

Aquarium Requirements

• Minimum Tank Size: 15 gallons (20+ gallons recommended for larger schools)
• Temperature: 72–80°F (22–27°C)
• pH: 6.5–7.8
• Water Hardness: Soft to moderately hard
• Aquascape: A well-planted aquarium with open swimming areas, gentle water flow, and dark substrate to enhance their vibrant colours.

Diet

Red Neon Rainbowfish are omnivores and thrive on a varied diet. Feed a high-quality micro pellet or flake food, supplemented with frozen or live foods such as baby brine shrimp, daphnia, cyclops, and finely chopped bloodworms to encourage optimal colour and health.

Compatibility

• Best kept in schools of 6 or more, with larger groups bringing out their natural behaviour and colouration.
• Excellent tank mates for other peaceful nano fish such as tetras, rasboras, Corydoras, Otocinclus, kuhli loaches, and small gouramis.
• Safe with shrimp and snails in most well-established aquariums.
• Avoid housing them with large or aggressive fish that may intimidate or prey on them.

Why You’ll Love Them

• Brilliant red-orange colouration with striking blue eyes.
• Peaceful and active schooling fish.
• Males display fascinating courtship behaviour.
• Perfect for planted and nature-style aquariums.
• Hardy, easy to care for, and ideal for community tanks.

The Red Neon Rainbowfish is a vibrant and peaceful species that adds constant movement and incredible colour to any planted aquarium. Whether you’re creating a nano display or a larger community tank, these stunning little rainbowfish are sure to become a favourite. Contact ECOAquariums for current availability and pricing.