Yellow Moscow Guppy | Breeding, Ideal Tank Setup and Best Places To Buy

Yellow Moscow Guppy

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Yellow Moscow Guppy | Breeding, Ideal Tank Setup and Best Places To Buy

A “Yellow Moscow Guppy” is a specific variety of the popular tropical fish species known as the guppy (Poecilia reticulata). Guppies are small, freshwater fish that are well-known for their vibrant colors and relatively easy care requirements. The Yellow Moscow Guppy is a selectively bred strain of guppies that are characterized by their bright yellow or lemon-yellow coloration.

This variety of guppy is named after the shape of its tail because it is believed to have been developed and refined by breeders in Russia. Yellow Moscow Guppies typically have solid yellow bodies and fins, although there may be variations in intensity and shade of yellow among individual fish. Selective breeding over generations has led to the development of these striking yellow guppies.

The term “Moscow” is often used in the guppy hobby to describe guppies with solid, intense colors, and it does not refer to their geographical origin. Moscow guppies, including the Yellow Moscow variety, are the result of breeding programs carried out by dedicated hobbyists and breeders to produce guppies with specific and vibrant colorations.

In this Yellow Moscow Guppy Guide we will explore breeding, tank setup, and the best places to buy Yellow moscow guppies.

Key Care Characteristics

  • Appearance: Yellow Moscow Guppy is characterized by its solid yellow or lemon color. The shade of yellow can vary from light to dark, depending on the specific strain and individual fish.
  • Size: Adult Yellow Moscow guppies are generally small in size. They typically reach an average length of about 1.5 to 2.5 inches (3.8 to 6.4 centimeters), with males usually being slightly smaller than females.
  • Care Requirements: Yellow Moscow guppies are hardy and easy to care for, making them suitable for beginners in the aquarium hobby..
  • Diet: They are omnivorous and accept a wide range of foods. Their diet should include high-quality flake or pellet food, supplemented with live or frozen foods like brine shrimp, daphnia, and bloodworms.
  • Origin: Selective Tank Bred – The exact origin of the Yellow Moscow guppy is not well-documented, but it’s a selectively bred color variant of the common Guppy (Poecilia reticulata) thought to originate from Russia. Guppies are native to various regions in South America, particularly in countries like Venezuela, Trinidad, and parts of Brazil.
  • Lifespan: Yellow Moscow Guppies have a relatively short lifespan compared to some other aquarium fish, typically living for around 2 to 3 years. Proper care, nutrition, and a stress-free environment can contribute to a longer lifespan.
  • Social Behavior: Community fish that is suitable for a community freshwater fish tank. Typically swims in the top half of the aquarium.

The Yellow Moscow Guppy Guide

Yellow Moscow Guppy
Yellow Moscow Guppy

To care for Yellow Moscow Guppies in your aquarium, it’s important to provide them with an appropriate tank setup, a suitable diet, and be vigilant about potential diseases. Here’s a care guide to help you maintain a healthy and thriving community of Yellow Moscow Guppies:

Tank Setup:

  1. Tank Size: A 10-gallon (about 38 liters) aquarium is a suitable starting point for a small group of Yellow Moscow Guppies. If you plan to keep more guppies, a larger tank is advisable.
  2. Filtration: Use a reliable aquarium filter to maintain water quality. Guppies are sensitive to ammonia and nitrites, so regular water changes are essential.
  3. Heating: Maintain a stable water temperature between 72-82°F (22-28°C). Guppies are tropical fish and require warm water for their well-being.
  4. Decor: Provide hiding places and plants, both live and artificial, for the guppies. They appreciate vegetation and hiding spots. Choose plants that can tolerate the conditions in your tank.
  5. Substrate: A fine gravel or sand substrate is suitable. Guppies like to explore the bottom of the tank.


  1. Diet: Yellow Moscow Guppies are omnivores. Offer them a varied diet that includes high-quality flake food, freeze-dried or frozen foods like daphnia, brine shrimp, and bloodworms. You can also feed them live foods for optimal health.
  2. Feeding Frequency: Feed them small amounts 2-3 times a day. Be sure to provide only what they can consume in a few minutes to prevent overfeeding and water quality issues.

Diseases and Health:

  1. Quarantine New Fish: When adding new guppies to your tank, quarantine them for a few weeks to prevent the introduction of diseases.
  2. Common Diseases: Guppies can be susceptible to common aquarium diseases such as fin rot, ich (white spot disease), and velvet. Monitor their behavior and appearance for signs of illness, and treat promptly if necessary.
  3. Water Quality: Regularly test the water parameters and maintain stable conditions. Good water quality helps prevent stress and disease.
  4. Stress Reduction: Guppies can be sensitive to stress, which can make them more susceptible to diseases. Avoid overcrowding, provide hiding spots, and maintain a consistent environment.
  5. Medication: In case of illness, consult with a veterinarian specializing in fish or a knowledgeable aquarium store employee for proper medication and treatment.

Remember that proper care and maintenance are key to keeping your Yellow Moscow Guppies healthy and vibrant. Regular observation of their behavior and appearance can help you catch and address any issues early, ensuring a thriving and colorful aquarium.

How to breed Yellow moscow guppies

Yellow Moscow Guppy
Credit: Tropic Flow

Breeding Yellow Moscow Guppies is a relatively straightforward process, as guppies are known for their prolific and live bearing nature. Here are the steps to breed Yellow Moscow Guppies:

1. Tank Setup:

  • Set up a breeding tank, separate from your main aquarium, to provide an optimal environment for breeding. A smaller tank, around 5-10 gallons (19-38 liters), is usually sufficient.
  • Ensure the tank is well-filtered, and the water parameters match the regular tank, including stable temperature (around 72-82°F or 22-28°C).

2. Selecting Breeding Pairs:

  • Choose healthy and mature Yellow Moscow Guppies as breeding pairs. Select individuals with the best yellow coloration and body shape.
  • You can have a single male with multiple females in the breeding tank to prevent over-harassment of females by the male.

3. Conditioning:

  • Feed the breeding pairs a high-quality diet for a few weeks before breeding. Provide a varied diet that includes live or frozen foods to ensure they are in optimal condition for reproduction.

4. Mating Behavior:

  • Guppies are livebearers, and mating is typically initiated by the male. The male will display his colorful fins and court the female by chasing and flashing.
  • When the female is receptive, the male will approach and inseminate her using a specialized fin called the gonopodium. Yellow Moscow Guppies may engage in courtship displays, but the mating process is generally quick.

5. Gestation:

  • After mating, the female will become gravid (pregnant) and carry the developing fry in her body for about 28-30 days. You can identify a gravid female by her swollen abdomen.

6. Fry Care:

  • Provide ample hiding places in the breeding tank, such as dense vegetation, as adult guppies may eat their own fry.
  • When the female gives birth, she will release live fry. Yellow Moscow Guppies can give birth to 20-30 or more fry in a single drop.
  • You can leave the fry in the breeding tank or transfer them to a separate fry-rearing tank for better survival rates.

7. Fry Diet:

  • Feed the fry with finely crushed flake food, powdered fry food, or special fry-specific foods. As they grow, you can introduce small live or frozen foods like baby brine shrimp.

8. Maintenance:

  • Continue to provide good water quality, stable temperature, and regular feedings to ensure the health and growth of the fry.

Breeding guppies can be a fun and rewarding experience, and Yellow Moscow Guppies can produce vibrant offspring with their distinctive yellow coloration. Just be prepared to care for the fry once they are born, and consider separating them from the adults to ensure their survival.

Best places to buy Yellow Moscow guppies and price

The availability and price of Yellow Moscow Guppies can vary depending on your location and the availability of local breeders and aquarium stores. However, you can generally find Yellow Moscow Guppies for sale through the following sources:

  1. Local Aquarium Stores: Many local fish stores (LFS) may carry a variety of guppy strains, including Yellow Moscow Guppies. Visit your nearest LFS to inquire about availability and prices.
  2. Aquarium Clubs and Expos: Check if there are aquarium clubs or fish expos in your area. These events often have hobbyist breeders who sell their guppies, and you might find unique strains, including Yellow Moscow, at reasonable prices.
  3. Online Classifieds and Auctions: Websites like Aquabid and eBay often have listings from hobbyist breeders and sellers offering various guppy strains. You can compare prices and read seller reviews before making a purchase.
  4. Online Retailers: Some online fish stores and retailers specialize in live fish sales. You can search for guppy varieties, including Yellow Moscow Guppies, and compare prices. Popular websites include LiveAquaria and The Wet Spot Tropical Fish.
  5. Social Media Groups and Forums: Join online fishkeeping communities, guppy enthusiast groups, and forums on platforms like Facebook or Fishlore. These communities often have members who sell or trade guppies, and you can connect with fellow hobbyists.

As for the average price of Yellow Moscow Guppies, it can vary widely based on factors such as the quality, age, and coloration of the fish, as well as the reputation of the breeder or seller. On average, you can expect to pay anywhere from $2 to $10 or more per fish for Yellow Moscow Guppies. Premium or show-quality individuals may be more expensive, while juveniles or less vibrant specimens may be at the lower end of the price range. Prices may be higher if you’re looking for specific color variations or strains within the Yellow Moscow category.

Keep in mind that prices can fluctuate, and it’s essential to do your research and compare offerings from different sources to ensure you’re getting healthy and high-quality Yellow Moscow Guppies at a fair price. Additionally, consider shipping costs if you’re buying online, and make sure the seller follows proper shipping and acclimation procedures to ensure the fish’s well-being.

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Lee Johnson

Lee Johnson

Aquarium Enthusiast

I love sharing my knowledge about all things aquarium related. I have been keeping aquariums for over 20 years and cannot imagine a life without an aquarium. 

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