Red Neon Blue-Eye (Pseudomugil Luminatus)

The Red Neon Blue-Eye is one of the most vibrant nano rainbowfish available in the aquarium hobby. Their glowing red-orange bodies, shimmering blue eyes, and energetic behaviour make them a standout species for planted aquariums and nano community tanks.

Native to Papua New Guinea, these small rainbowfish are constantly active and display incredible colour when kept in groups. Males develop extended fins and deep red tones while displaying to females, creating a stunning display of movement and colour throughout the aquarium.

Red Neon Blue-Eyes are especially striking in densely planted aquariums, where their colours contrast beautifully against green plants and natural hardscape.

At N8 Aquatics, our fish are carefully raised and conditioned to ensure healthy stock suited for home aquariums.

Recommended Group Sizes

Red Neon Blue-Eyes are true schooling fish and display their best colour and behaviour when kept in groups.

While small groups can be kept, larger groups allow males to compete for attention and show their brightest colours.

Recommended group sizes:

• 6 fish – starter group
• 8–10 fish – ideal display group
• 12+ fish – full schooling display

Many aquarists find that once the group reaches 10 or more fish, the aquarium becomes significantly more active and colourful as the males constantly display to one another.

Why Larger Groups Look Better

In small groups, males often suppress their colours to avoid conflict.

In larger groups, males feel more confident and will:

• flare their fins
• display bright red colours
• perform short courtship dances
• interact constantly with other fish

This behaviour creates the fast-moving, colourful displays rainbowfish are famous for.

Species Snapshot

• Size Sold: Juveniles (size may vary)
• Adult Size: 3–4 cm
• Tank Size: 40 L minimum
• Temperament: Peaceful schooling fish
• Temperature: 24–28°C
• pH: 6.0 – 7.5
• Difficulty: Easy to Moderate

Key Information

• Scientific Name: Pseudomugil luminatus
• Common Name: Red Neon Blue-Eye / Luminatus Blue-Eye
• Adult Size: Approximately 3–4 cm
• Temperament: Peaceful schooling fish
• Difficulty Level: Easy to moderate

Recommended Tank Setup

Red Neon Blue-Eyes thrive in planted aquariums with gentle flow and open swimming space.

Ideal aquascape features include:

• dense live plants
• floating plants such as frogbit or duckweed
• driftwood or natural hardscape
• fine leaf plants or spawning mops

Planted tanks bring out their colours while providing natural cover and spawning areas.

Water Parameters

These fish are adaptable but prefer clean, stable water conditions.

• Temperature: 24–28 °C
• pH: 6.0 – 7.5
• GH: 3 – 12 dGH
• Water Flow: Low to moderate

Regular water changes help maintain colour and long-term health.

Diet

Red Neon Blue-Eyes are micro-predators that thrive on small foods.

Recommended foods include:

• high quality micro pellets
• crushed flake foods
• baby brine shrimp
• daphnia
• microworms or other live foods

A varied diet will enhance colour and promote healthy growth.

Compatibility

Red Neon Blue-Eyes are peaceful and ideal for community aquariums with other small fish.

Suitable tankmates include:

• small tetras
• rasboras
• Corydoras
• peaceful nano fish
• shrimp in larger planted tanks

Avoid large or aggressive fish.

Behaviour

Male Red Neon Blue-Eyes constantly display to each other and to females, flaring their fins and showing intense colouration.

In larger groups this behaviour becomes especially impressive, creating a beautiful and constantly active display in planted aquariums.

They may also spawn regularly in planted tanks or spawning mops.

Why Buy From N8 Aquatics

• Carefully raised aquarium fish
• Healthy, well-conditioned stock
• Strong genetics and vibrant colouration
• Breeder support if you have questions

Our fish are raised with attention to water quality, diet, and husbandry to ensure customers receive healthy livestock ready for their aquarium.

Pickup Information

N8 Aquatics currently operates as a local pickup-only breeder in Central Queensland.

Orders are collected by appointment after purchase confirmation.

Please ensure you are able to collect your fish before placing an order.

Important

All livestock sold by N8 Aquatics should be introduced to fully cycled aquariums suitable for the species being kept.

Please ensure your aquarium setup and tankmates are appropriate before purchasing.