Red Neon Blue Eye Rainbowfish (Pseudomugil luminatus) – Dazzling Nano-Sized Rainbowfish for Planted Aquariums
The Red Neon Blue Eye Rainbowfish is a brilliantly colored nano fish that brings striking contrast and motion to any freshwater aquarium. Known for its vibrant red-orange body, electric blue irises, and iridescent shimmer, this species lights up planted tanks and nano communities alike. Small but full of personality, these fish display incredible coloration in both natural and LED lighting.
Ideal for peaceful community setups, these fish thrive in schools of 6 or more, where their group behavior becomes even more lively and engaging. They prefer mature aquariums with stable parameters and gentle filtration.
Scientific Name: Pseudomugil luminatus
Common Name: Red Neon Blue Eye Rainbowfish
Size Shipped: ~0.5–0.75 inches
Adult Size: ~1 inch
Temperament: Peaceful, active, social
Swimming Level: Mid to upper water column
Origin: Tank-bred
Ideal Tank Conditions
Temperature: 72°F – 80°F
pH: 6.0 – 7.4
GH: 4 – 10
KH: 1 – 5
Minimum Tank Size: 10 gallons (larger recommended for schools)
Decor: Heavily planted with some open swimming space and low flow
Lighting: Moderate to highlight their shimmer
Diet
Eats micro pellets, crushed flakes, and small frozen or live foods like baby brine shrimp and daphnia. Feed small portions 1–2 times daily for best coloration and health.
Why Choose Red Neon Blue Eye Rainbowfish
Glowing red bodies with neon-blue eyes
Peaceful, ideal for planted and nano aquariums
Excellent with shrimp, rasboras, and other micro fish
Great for beginner to intermediate hobbyists
Thrives in stable, clean water environments
These fish are perfect for hobbyists looking to add color, activity, and character to smaller tanks. Whether in a desktop aquascape or a carefully curated community setup, Red Neon Blue Eyes are guaranteed to stand out.
Breeding
Typically you want 2 or more pairs and you need to provide a spawning mop or vegetation for them to lay there eggs they will eat the eggs/fry they have so you need to pull the eggs and hatch into a separate container with a air stone and some flow not a ton of flow but just a little to break the surface.
How to trigger spawning most of the time they will breed on there own if you feed them a good varied diet but if you are struggling to get them to lay eggs I recommend doing a cold water change not super cold but maybe a 6 degree temperature difference and also feeding them tons of live foods.
After they hatch you want to feed them a dry fry powder I personally have used Sera Micron Nature Fry Food with very good success. You can also use green water which will also work pretty well for getting them up to size. After about 1-2 weeks they should be big enough to feed live baby brine shrimp or alternatives to get optimal growth I suggest live foods in general and a temperature of around 78 degrees.
Red Neon Blue Eye Rainbowfish (Pseudomugil luminatus) – Dazzling Nano-Sized Rainbowfish for Planted Aquariums
The Red Neon Blue Eye Rainbowfish is a brilliantly colored nano fish that brings striking contrast and motion to any freshwater aquarium. Known for its vibrant red-orange body, electric blue irises, and iridescent shimmer, this species lights up planted tanks and nano communities alike. Small but full of personality, these fish display incredible coloration in both natural and LED lighting.
Ideal for peaceful community setups, these fish thrive in schools of 6 or more, where their group behavior becomes even more lively and engaging. They prefer mature aquariums with stable parameters and gentle filtration.
Scientific Name: Pseudomugil luminatus
Common Name: Red Neon Blue Eye Rainbowfish
Size Shipped: ~0.5–0.75 inches
Adult Size: ~1 inch
Temperament: Peaceful, active, social
Swimming Level: Mid to upper water column
Origin: Tank-bred
Ideal Tank Conditions
Temperature: 72°F – 80°F
pH: 6.0 – 7.4
GH: 4 – 10
KH: 1 – 5
Minimum Tank Size: 10 gallons (larger recommended for schools)
Decor: Heavily planted with some open swimming space and low flow
Lighting: Moderate to highlight their shimmer
Diet
Eats micro pellets, crushed flakes, and small frozen or live foods like baby brine shrimp and daphnia. Feed small portions 1–2 times daily for best coloration and health.
Why Choose Red Neon Blue Eye Rainbowfish
Glowing red bodies with neon-blue eyes
Peaceful, ideal for planted and nano aquariums
Excellent with shrimp, rasboras, and other micro fish
Great for beginner to intermediate hobbyists
Thrives in stable, clean water environments
These fish are perfect for hobbyists looking to add color, activity, and character to smaller tanks. Whether in a desktop aquascape or a carefully curated community setup, Red Neon Blue Eyes are guaranteed to stand out.
Breeding
Typically you want 2 or more pairs and you need to provide a spawning mop or vegetation for them to lay there eggs they will eat the eggs/fry they have so you need to pull the eggs and hatch into a separate container with a air stone and some flow not a ton of flow but just a little to break the surface.
How to trigger spawning most of the time they will breed on there own if you feed them a good varied diet but if you are struggling to get them to lay eggs I recommend doing a cold water change not super cold but maybe a 6 degree temperature difference and also feeding them tons of live foods.
After they hatch you want to feed them a dry fry powder I personally have used Sera Micron Nature Fry Food with very good success. You can also use green water which will also work pretty well for getting them up to size. After about 1-2 weeks they should be big enough to feed live baby brine shrimp or alternatives to get optimal growth I suggest live foods in general and a temperature of around 78 degrees.
1.
100% acrylic yarn spawning mop
2.
5 gallon tank for a pair or 10 gallon tank for a group
3.
Small sponge filter hang on the back filters may suck up small fish or fry so make sure to put a sponge over the intake
4.
Small aquarium heater to control temperature
