Red Neon Blue Eye Rainbowfish - Pseudomungil Luminatus

The Red Neon Blue Eye Rainbowfish (Pseudomugil luminatus) is a dazzling micro-rainbowfish prized for its vivid coloration and sparkling personality. Native to Papua New Guinea, this nano-sized species lights up planted tanks with its fiery red body, electric blue eyes, and fluttering, extended fins that shimmer as it dances through the water. Males are especially vibrant and will frequently display to one another or to females in lively, shimmering bursts.

Despite their small size, these fish are full of energy and thrive in groups of 6 or more, where their natural schooling behavior creates a brilliant display of coordinated movement. Ideal for peaceful, well-planted aquascapes, they prefer soft, slightly acidic water with gentle flow and shaded areas. Though they’re peaceful, they may be outcompeted by larger tankmates, so they’re best kept with similarly sized or gentle species.

Difficulty – Moderate
Temperament – Peaceful, active, social
Size – Up to 1.5 inches
Tank Size – 10 gallons+ (20+ for a group)
Temperature – 72°F to 78°F
Diet – Omnivore (micro-pellets, baby brine shrimp, daphnia, crushed flakes)
pH – 6.0 to 7.2
✨ The Red Neon Blue Eye is a tiny treasure—ideal for nano tanks and aquascapers looking to add vivid color, movement, and charm without taking up space.

This listing is for 1 Red Neon Blue Eye Rainbowfish – Pseudomugil luminatus*