Purple Mosaic Guppy Care Guide: Breeding, Tank Setup, Feeding, Disease Prevention and more

Purple Mosaic Guppy

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Purple Mosaic Guppy Care Guide: Breeding, Tank Setup, Feeding, Disease Prevention and more

A Purple Mosaic Guppy is a beautiful and popular variety of guppy that is known for its vibrant purple and blue colors. The male Purple Mosaic Guppy has a large, fan-shaped tail that is often covered in a mosaic of purple, blue, and sometimes green spots. The female Purple Mosaic Guppy has a smaller tail that is also often covered in a mosaic of purple, blue, and sometimes green spots. In this comprehensive care guide, we will explore every aspect of caring for Purple Mosaic Guppies, including their appearance, origin, tank setup, breeding, feeding, diseases, and more.

What is a Purple Mosaic Guppy?

Purple Mosaic Guppies are a distinctive variety known for their intricate, patchwork-like coloration. The “mosaic” name comes from the irregular, mosaic-like arrangement of their colors, which can include a mix of vibrant purples, blues, and other shades. Unlike other guppy types with solid colors or distinct patterns, the mosaic guppy’s appeal lies in its unique and eye-catching look.

Appearance of purple mosaic guppies

purple mosaic guppy, purple mosaic guppies, purple guppies
Credit: aquatic arts

Purple Mosaic Guppies, in particular, exhibit a deep purple base color that forms the backdrop for their mosaic pattern. The scales are often adorned with splashes of various shades of purple and blue, creating a mesmerizing tapestry on their bodies. Their tails may have spots, stripes, or even metallic sheens, adding to their allure.

Guppy Origin

The Purple Mosaic Guppy is a tank-bred variety of guppy. It is believed to have originated from selective breeding, with breeders selecting guppies with the most prominent mosaic pattern and breeding them together over generations to produce the striking appearance that is characteristic of this strain.

The exact origins of the Purple Mosaic Guppy are unknown, but it is thought to have been developed in the United States in the early 2000s. It has since become a popular variety of guppy all over the world.

Purple Mosaic Guppies are not found in the wild. They are only bred in captivity.

Tank Setup

Creating the ideal environment for your Purple Mosaic Guppies is crucial for their health and happiness. Here are the key factors to consider when setting up their tank:

Guppy Fish Tank
Guppy Fish Tank

Tank Size

Purple Mosaic Guppies are relatively small, with adult males reaching around 1.5 inches in length and females being slightly larger. A 10-gallon tank is an excellent starting point for a small group of these fish, but larger tanks provide more stability and space for additional individuals.

Water Parameters

Maintaining stable water conditions is essential. Guppies, including Purple Mosaic Guppies, prefer slightly alkaline water with a pH between 7.0 and 7.4. The water temperature should be kept between 74°F and 82°F (23°C – 28°C). A good quality heater and thermometer are essential to regulate these parameters.


A reliable filter is a must in your guppy tank. It helps remove toxins, maintains water clarity, and provides oxygen for your fish. Guppies are known for their high metabolism, so efficient filtration is essential.

Substrate and Decor

You can use fine gravel or sand as the substrate for your guppy tank. Provide some live or silk plants, as well as decorations like caves or driftwood, to create hiding spots and enrich the environment.


Guppies, including Purple Mosaic Guppies, thrive in well-lit tanks. Use a low to moderate intensity aquarium light to encourage the growth of plants and showcase their vibrant colors.

Tank Mates

Guppies are generally peaceful fish, but avoid housing them with aggressive or fin-nipping species. Consider tankmates like neon tetras, platies, or corydoras catfish, which are compatible with guppies and share similar water parameter preferences.

How to breed Purple Mosaic Guppies

pregnant guppy, how to breed guppies
pregnant guppy, how to breed guppies

To breed Purple Mosaic Guppies, you will need a pair of healthy adults. The male should be large and colorful, with a large, fan-shaped tail. The female should be smaller and less colorful, with a smaller tail.

You should also have a breeding tank. This tank should be at least 10 gallons in size, and it should be planted with live plants. Live plants will provide hiding places for the fry and help to keep the water quality high.

Once you have your pair of guppies and your breeding tank, you can start the breeding process.

  1. Place the male and female guppies in the breeding tank.
  2. The male guppy will chase after and mate with the female guppy.
  3. Once the female is pregnant remove all the males and only keep the pregnant females in the breeding tank.
  4. The female guppy will then give birth to live fry.
  5. The fry are very small and need to be fed a special diet of infusoria or baby brine shrimp.
  6. You can remove the adult guppies from the breeding tank once the fry are born.

The fry will grow quickly, and they will be ready to breed in about 6 months.

Here are some additional tips for breeding Purple Mosaic Guppies:

  • Make sure that the breeding tank is clean and well-maintained.
  • Keep the water temperature in the breeding tank between 76-78 degrees Fahrenheit.
  • Feed the adult guppies a high-quality diet.
  • Provide plenty of hiding places for the fry in the breeding tank.
  • Remove the adult guppies from the breeding tank once the fry are born.

With proper care, you can successfully breed Purple Mosaic Guppies and enjoy their beautiful colors and easy-going nature for many years to come.


Guppy food
Guppy food

Proper nutrition is essential for the health and vitality of your Purple Mosaic Guppies. These fish are omnivores, meaning they require a balanced diet that includes both animal and plant-based foods.

Commercial Guppy Food

High-quality commercial guppy flakes or pellets should be the primary component of their diet. Look for those with a balanced nutritional profile, including proteins, fats, and vitamins. Feeding guppies once or twice a day is generally sufficient.

Live and Frozen Foods

Variety is key to their diet. Supplement their diet with live or frozen foods like daphnia, brine shrimp, and bloodworms. These foods provide essential proteins and simulate their natural diet in the wild.

Plant Matter

Don’t forget to include plant matter in their diet. Guppies nibble on algae and may also consume small plant fragments in your aquarium. Live or blanched vegetables like spinach or zucchini can be offered as occasional treats.

Avoid Overfeeding

Overfeeding can lead to health issues and deteriorating water quality. Make sure to feed them in small portions that they can consume within a few minutes. Remove any uneaten food promptly.

By offering a balanced diet and monitoring their feeding habits, you can ensure the well-being of your Purple Mosaic Guppies.


Like all aquarium fish, Purple Mosaic Guppies are susceptible to certain diseases. Being proactive in disease prevention and early detection is essential for keeping your fish healthy.

Common Diseases

Some common diseases that can affect guppies, including Purple Mosaic Guppies, are:

1. Ich (White Spot Disease)

  • Symptoms: White spots on the fish’s body, rapid gill movement, rubbing against objects.
  • Treatment: Increase the temperature to 82-86°F (28-30°C) and use an appropriate medication.

2. Fin Rot

  • Symptoms: Torn or frayed fins, discoloration.
  • Treatment: Isolate the infected fish and use antibiotics.

3. Dropsy

  • Symptoms: Swollen abdomen, raised scales.
  • Treatment: Isolate the affected fish, improve water quality, and use antibiotics.

4. Fungal Infections

  • Symptoms: White cotton-like growth on the fish.
  • Treatment: Use antifungal medication and maintain good water quality.

Disease Prevention

Preventing disease is easier than treating it. Ensure good water quality, proper nutrition, and a stress-free environment. Quarantine new fish before introducing them to your main tank to prevent the spread of diseases. Regularly observe your guppies for any signs of illness, and take action promptly if you notice any symptoms.

Where to buy purple mosaic guppies?

Purple mosaic guppies can be hard to find but there are some places to look to find them.

Local Aquarium Stores:

  • Start your search by visiting local aquarium or pet stores. They often carry a variety of guppy strains, including Purple Mosaic Guppies.

Aquarium Clubs and Associations:

  • Joining a local aquarium club or association can be a great way to connect with fellow hobbyists who may breed and sell guppies, including Purple Mosaics.

Online Marketplaces:

  • Online marketplaces like Aquabid, eBay, and various aquarium forums have sellers who offer guppies and other fish. You can browse listings and contact sellers directly.

Specialized Guppy Breeders:

  • Some breeders specialize in guppies and may have a selection of unique strains, including Purple Mosaic Guppies. A quick online search for guppy breeders in your area or region can yield promising results.

Social Media and Forums:

  • Check out aquarium-related groups and forums on platforms like Facebook, Reddit, or Fishlore. Many hobbyists and breeders use these platforms to advertise their guppies.

Aquatic Expos and Shows:

  • Attend local aquarium expos, fish shows, or swap meets. These events often feature vendors and hobbyists selling a variety of fish, including guppies.

Local Classified Ads:

  • Look in classified ads in newspapers or online platforms like Craigslist for local guppy breeders and sellers.

When buying Purple Mosaic Guppies, it’s essential to consider the reputation of the seller and the health of the fish. Ask about the guppies’ care and breeding conditions, and request to see the fish in person or receive clear photos if buying online. Ensure that the seller has a good track record for providing healthy fish.

How much do purple mosaic guppies cost?

The price of Purple Mosaic Guppies can vary depending on a number of factors, such as the quality of the fish, the size of the fish, and the seller. However, Purple Mosaic Guppies are generally considered to be a relatively affordable variety of guppy.

You can expect to pay between $5 and $10 for a high-quality Purple Mosaic Guppy. If you are buying from a breeder, you may pay a bit more, but you can be sure that you are getting healthy fish from a reputable source.

If you are on a tight budget, you may be able to find Purple Mosaic Guppies for sale at a local fish store for less than $5. However, it is important to inspect the fish carefully before you buy them, as these fish may not be of the highest quality.

Here are some tips for finding the best deals on Purple Mosaic Guppies:

  • Shop around and compare prices from different sellers.
  • Ask about discounts for bulk purchases.
  • Look for sales and promotions.
  • Consider buying from a breeder.

With a little bit of shopping, you can find Purple Mosaic Guppies at a price that you can afford.

Additionally, be prepared with a suitable tank and setup to accommodate your new guppies before bringing them home. Proper acclimation to their new environment is crucial for their well-being.

Remember to research the specific care requirements for Purple Mosaic Guppies to provide them with the best possible environment in your aquarium.

In conclusion, Purple Mosaic Guppies are a captivating addition to any aquarium, and with proper care, they can thrive and display their stunning colors. By understanding their unique characteristics, origin, tank setup, breeding, feeding, and disease management, you can enjoy the beauty of these fish in your own aquatic haven.

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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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