Blue Neon Moscow Guppy – Poecilia reticulata

The Blue Neon Moscow Guppy (Poecilia reticulata) is a striking selectively bred fancy guppy known for its intense metallic blue coloration, elegant finnage, and active personality.

The Moscow line is prized for strong body-wide coloration, and Blue Neon Moscow Guppies can display shades ranging from icy blue and turquoise to deep electric blue. Their vibrant color makes them especially attractive in planted community aquariums.

Key Features

• Intense metallic blue to electric-blue coloration
• Selective Moscow-line fancy guppy
• Peaceful freshwater community fish
• Active and easy to observe
• Excellent for planted aquariums
• Livebearing species
• Prefers moderately hard to hard, mineral-rich water
• Color and fin shape may vary by individual and breeding line

Fish Information

• Common Name: Blue Neon Moscow Guppy
• Scientific Name: Poecilia reticulata
• Family: Poeciliidae
• Variety: Selectively bred Blue Neon Moscow strain
• Water Type: Freshwater
• Temperament: Peaceful
• Adult Size: Approximately 1.5–2.5 inches depending on sex and strain
• Swimming Level: Middle to upper levels
• Diet: Omnivore
• Care Level: Beginner to Intermediate

Color and Appearance

Blue Neon Moscow Guppies are bred for strong metallic blue coloration that may extend across much of the body and fins.

Depending on the individual and breeding line, coloration may appear:

• Electric blue
• Neon blue
• Turquoise blue
• Steel blue
• Deep royal blue

Males are generally smaller, more colorful, and have larger decorative fins than females.

Exact shade, fin shape, and color intensity can vary between individual fish.

Recommended Aquarium Size

A 10-gallon aquarium or larger can house a small group, but a 20-gallon aquarium or larger is preferred for additional swimming room and greater water stability.

Recommended Water Parameters

• Temperature: Approximately 72–80°F
• pH: Approximately 7.0–8.5
• Water Hardness: Moderately hard to hard
• Ammonia: 0 ppm
• Nitrite: 0 ppm
• Nitrate: Kept low through routine maintenance

Guppies generally perform best in mineral-rich water. Seriously Fish lists the species at approximately 8–30 dGH and specifically notes that long-term maintenance is best in moderately hard or harder water. :contentReference[oaicite:1]{index=1}

Aquarium Setup

• Use a fully cycled freshwater aquarium
• Provide reliable filtration
• Maintain good oxygenation and surface movement
• Avoid excessively strong current
• Add live or artificial plants for cover
• Leave open swimming areas
• Use a secure aquarium lid
• Perform regular partial water changes

Feeding

Blue Neon Moscow Guppies are omnivores and readily accept a varied diet.

Suitable foods include:

• High-quality tropical flakes
• Micro pellets
• Spirulina-based foods
• Frozen brine shrimp
• Baby brine shrimp
• Frozen daphnia
• Bloodworms as an occasional supplemental food

Feed small portions once or twice daily and avoid overfeeding.

Temperament

Blue Neon Moscow Guppies are peaceful community fish. Male guppies may display and chase one another, but serious aggression is uncommon when sufficient space and cover are provided.

Because fancy guppies may have long fins, avoid persistent fin-nipping tankmates.

Compatible Tankmates

Potential tankmates include:

• Other peaceful guppies
• Platies
• Mollies
• Corydoras
• Peaceful rasboras
• Small rainbowfish
• Peaceful tetras that tolerate similar water conditions
• Other gentle community fish

Avoid aggressive fish and persistent fin nippers such as Tiger Barbs and similarly boisterous species. Guppies are generally peaceful community fish but can be vulnerable to fin damage. :contentReference[oaicite:2]{index=2}

Male vs. Female

Males are generally smaller, more intensely colored, and develop larger ornamental fins.

Females are usually larger and fuller-bodied with less intense coloration.

Mature males also have a narrow, pointed reproductive anal fin called a gonopodium.

Breeding

Guppies are livebearers, meaning females give birth to free-swimming fry rather than laying eggs.

If males and females are housed together, breeding can occur readily. Females can store sperm and may produce additional broods after mating. FishBase notes that females may give birth approximately every four weeks, with gestation commonly taking four to six weeks. :contentReference[oaicite:3]{index=3}

When maintaining a specific strain such as Blue Neon Moscow, selective breeding is important because offspring may vary in color intensity, body coverage, and fin shape.

Male-to-Female Ratio

If keeping mixed sexes, a ratio of approximately one male to two or three females can help reduce persistent male attention toward individual females.

Male-only displays are also popular and prevent unwanted fry.

Plants and Aquascaping

Blue Neon Moscow Guppies look especially striking in planted aquariums.

Good plant choices include:

• Java moss
• Guppy grass
• Anubias
• Java fern
• Cryptocoryne
• Vallisneria
• Floating plants

Green plants and darker backgrounds provide excellent contrast with the metallic blue coloration.

Important Care Notes

• Keep in a fully cycled aquarium.
• Maintain ammonia and nitrite at 0 ppm.
• Provide moderately hard to hard, mineral-rich water.
• Avoid very soft or strongly acidic conditions long term.
• Choose peaceful tankmates that will not nip fins.
• Feed a varied diet.
• Use a secure aquarium lid.
• Never release aquarium fish into local waterways.

Frequently Asked Questions

What makes a Moscow Guppy different?
Moscow strains are selectively bred for strong metallic coloration that often covers much of the body and may extend into the fins.

How large do Blue Neon Moscow Guppies get?
Most adults reach approximately 1.5–2.5 inches depending on sex and breeding line. FishBase reports guppies up to approximately 5 cm standard length for males and 6 cm for females. :contentReference[oaicite:4]{index=4}

Are Blue Neon Moscow Guppies peaceful?
Yes. They are generally peaceful and suitable for community aquariums with compatible tankmates.

Can I keep only males?
Yes. Male-only guppy aquariums are popular because they provide strong coloration without producing fry.

Can different guppy strains live together?
Yes. Different ornamental guppy strains can generally live together when their water requirements are compatible.

Do Blue Neon Moscow Guppies need hard water?
They generally do best in moderately hard to hard, mineral-rich water. Seriously Fish lists approximately pH 7.0–8.5 and 8–30 dGH for the species. :contentReference[oaicite:5]{index=5}

Will every Blue Neon Moscow Guppy look identical?
No. Metallic blue intensity, body coverage, tail shape, and fin coloration can vary among individuals.

Available at Tropical Treasures Wyo

Blue Neon Moscow Guppies are available at Tropical Treasures Wyo in Cheyenne, Wyoming, when in stock.

Live fish are available for in-store purchase or local pickup only and are not available for shipping.

Live Fish Sales Policy: Please inspect your fish before leaving the store. All live fish sales are final once they leave our store. We're happy to help with acclimation and care questions.