Blue Lace Guppy Care Guide | Breeding, Tank Setup, and More

Blue Lace guppy

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Blue Lace Guppy Care Guide | Breeding, Tank Setup, and More

Welcome to the world of Blue lace Guppies (Poecilia reticulata)! These captivating and delicate fish are a favorite among aquarium enthusiasts for their stunning appearance and easy care. In this comprehensive care guide, we’ll delve into every aspect of caring for freshwater blue lace Guppies fish, from understanding their characteristics and origin to setting up the perfect tank and ensuring their health and well-being. Let’s dive in!

What is a Blue Lace Guppy?

The blue lace guppy (Poecilia reticulata) is a beautiful and popular variety of guppy fish. It is characterized by its bright blue coloration and delicate lace-like patterns on its fins. Blue lace guppies are relatively easy to care for and make a great addition to any freshwater aquarium.

Blue lace guppies are omnivores and will eat a variety of foods, including flakes, pellets, and live foods. They are also known to graze on algae in the aquarium. It is important to feed your blue lace guppies a balanced diet to ensure that they stay healthy and vibrant.

Blue lace guppies are generally peaceful fish and can be kept with other peaceful community fish. However, it is important to note that male guppies can be territorial and may chase each other. It is best to keep a group of at least six male guppies together to help reduce aggression.

Blue lace guppies are livebearers, meaning that the female fish give birth to live young. The fry are born fully developed and can swim immediately. Blue lace guppy fry are relatively easy to raise, and you can feed them the same food as the adult fish.

Appearance – Male and Female

Blue lace Guppies exhibit noticeable sexual dimorphism, which means that males and females have distinct physical characteristics:

Blue Lace guppy, Blue Lace guppies
Credit: Jadren Aquatics

Male Blue Lace Guppy

  • Size: Males are generally smaller, reaching an average length of 1.2 to 1.6 inches.
  • Color: The males display the characteristic vibrant blue color with intricate lace patterns on their fins and body.
  • Fins: They have long and flowing dorsal and tail fins, often adorned with colorful streaks.
  • Gonopodium: Males possess a modified anal fin called a gonopodium, which is used for reproduction.

Female Blue Lace Guppy

  • Size: Females are slightly larger, typically growing to 1.6 to 2 inches in length.
  • Color: Females are less vibrant, displaying a subtler blue hue with fewer prominent patterns.
  • Fins: Their fins are shorter and less flamboyant compared to the males.
  • Gravid Spot: Mature females may develop a gravid spot near their anal fin, indicating their readiness to reproduce.


The blue lace guppy is a selectively bred variety of the guppy fish, which is native to South America. The exact origin of the blue lace guppy is unknown, but it is thought to have been developed by aquarists in the United States or Europe in the late 1900s.

Blue lace guppies are not found in the wild, but they are now popular aquarium fish all over the world. They are known for their beautiful coloration and delicate lace-like patterns on their fins. Blue lace guppies are also relatively easy to care for and make a great addition to any freshwater aquarium.

Here are some popular strains of blue lace guppies:

  • Blue lace metal guppy
  • Blue lace tuxedo guppy
  • Blue lace koi guppy
  • Blue lace dragon guppy
  • Blue lace cobra guppy

Blue lace guppies are a relatively new variety of guppy, but they have quickly become one of the most popular. They are a beautiful and hardy fish that is perfect for both beginners and experienced aquarists.

Tank Setup

Creating the perfect habitat for your blue lace Guppies is essential for their health and well-being. Here are the key elements to consider when setting up their tank:

Tank Size

  • Minimum Size: A 10-gallon tank is suitable for a small group of Guppies, but a larger tank, like a 20-gallon long aquarium, is ideal. The more space they have, the happier and healthier your Guppies will be.

Water Parameters

  • Temperature: Maintain a stable water temperature between 75°F and 82°F (24°C to 28°C) to keep your Guppies comfortable.
  • pH Level: Guppies thrive in slightly alkaline water with a pH range of 7.0 to 7.5.
  • Water Hardness: Aim for moderate water hardness, ideally around 10-15 dGH.

Filtration and Aeration

  • Use a quality filter and air pump to ensure proper water circulation and oxygenation, as Guppies appreciate well-aerated water.

Substrate and Decor

  • Opt for fine-grain substrate, such as sand or smooth gravel, and include live or artificial plants for hiding spots and aesthetic appeal.
  • Add some floating plants to provide cover for fry and reduce stress in the tank.


  • Blue lace Guppies don’t have specific lighting requirements, but a standard aquarium light with a 12-hour light-dark cycle is sufficient.


  • Regular water changes (20-25% every 1-2 weeks) are crucial to keep the water quality optimal.
  • Test the water regularly to monitor pH, ammonia, and nitrate levels.

Breeding Blue Lace Guppies

blue lace guppy

Breeding blue lace Guppies can be a rewarding experience, especially if you’re looking to expand your Guppy colony or simply enjoy the process of observing their vibrant offspring. Here’s a step-by-step guide to successful breeding:

1. Selecting Breeding Stock

Choose healthy and vibrant males and females for breeding. Look for males with the most intricate blue lace patterns and females in good condition.

2. Breeding Tank Setup

Set up a separate breeding tank, ideally around 5-10 gallons in size. Ensure it has a sponge filter to provide gentle filtration.

3. Conditioning

Before breeding, condition your Guppies with a varied diet rich in high-quality flakes, frozen, or live foods. This will prepare them for breeding and ensure the females are well-nourished for the pregnancy.

4. Introduction

Place the chosen male and female into the breeding tank. Ensure there are plenty of hiding spots and plants for the female to seek refuge if needed.

5. Courtship and Mating

Mating typically involves the male showcasing his vibrant colors and displaying his fins to court the female. Once she’s ready, the male will transfer sperm using his gonopodium. Multiple matings may occur during this time.

6. Pregnancy and Birth

After mating, the female will develop a gravid spot, indicating she is pregnant. Guppy gestation usually lasts around 21-30 days, depending on factors like temperature. When it’s time, the female will give birth to live fry.

7. Caring for Fry

Once the fry are born, they are entirely independent. You can feed them with powdered or liquid fry food to ensure their rapid growth. Keep in mind that adult Guppies might see the fry as potential snacks, so it’s essential to separate them once they are born.


Blue lace guppies are generally peaceful fish and can be kept with other peaceful community fish. However, it is important to note that male guppies can be territorial and may chase each other. It is best to keep a group of at least six male guppies together to help reduce aggression.

Here are some good tank mates for blue lace guppies:

It is important to avoid housing blue lace guppies with larger or more aggressive fish, such as cichlids and barbs. These fish may prey on the guppies or bully them.

When choosing tank mates for your blue lace guppies, it is also important to consider the size of your aquarium. Guppies are relatively small fish, so they should be kept with other fish that are similar in size.


Guppy food
Guppy food

Proper nutrition is crucial for the health and vitality of your blue lace Guppies. These fish are omnivores, which means they’ll eat both plant matter and small invertebrates. Here’s a feeding guide:

  • Flakes: High-quality Guppy-specific flakes are a staple in their diet. Look for flakes rich in protein and formulated for Guppies.
  • Live and Frozen Foods: Supplement their diet with occasional feedings of live or frozen foods like brine shrimp, daphnia, and bloodworms to provide essential nutrients.
  • Vegetables: Guppies will nibble on blanched vegetables like spinach and zucchini, which offer dietary fiber and vitamins.
  • Frequency: Feed your Guppies small portions 2-3 times a day. Ensure they consume the food within 2-3 minutes to prevent overfeeding.

Common Diseases

Blue lace Guppies are generally hardy fish, but they can still be susceptible to common aquarium diseases. Understanding and preventing these issues is essential for their well-being. Here are a few diseases to be aware of:

  • Ich (White Spot Disease): Ich is characterized by small white cysts on the fish’s skin, gills, and fins. Maintain good water quality, and consider raising the temperature to help treat this condition.
  • Fin Rot: Poor water quality or fin-nipping tankmates can lead to fin rot. Keep the tank clean and ensure tankmates are peaceful.
  • Dropsy: Dropsy is a symptom of an underlying issue and results in bloating. It may be caused by bacterial infections. Quarantine and treat affected fish promptly.
  • Velvet Disease: Velvet appears as a gold or rust-colored dust on the fish’s skin. Quarantine infected fish and treat with copper-based medications.


With proper care, blue lace Guppies can live for an average of 2 to 3 years. Providing a clean and stable environment, a balanced diet, and monitoring their health will help ensure a longer and healthier life for your Guppies.

Where to Buy and Cost

ere are some places where you can buy blue lace guppies and the average cost:

  • Local fish stores: Blue lace guppies are widely available at local fish stores. The average cost of a blue lace guppy at a local fish store is between $5 and $10.
  • Online retailers: There are many online retailers that sell blue lace guppies. The average cost of a blue lace guppy from an online retailer is between $5 and $25.
  • Fish breeders: You can also buy blue lace guppies from fish breeders. Fish breeders often specialize in breeding specific varieties of fish, and they may be able to offer you a wider selection of blue lace guppies than you would find at a local fish store or online retailer. The average cost of a blue lace guppy from a fish breeder is between $20 and $50.

When buying blue lace guppies, it is important to choose a reputable retailer or breeder. Be sure to inspect the fish carefully before you purchase them to make sure they are healthy.

In conclusion, blue lace Guppies are captivating and relatively easy to care for, making them an excellent choice for both beginner and experienced aquarists. By providing them with the right environment, proper nutrition, and attention to their specific needs, you can enjoy the beauty of these stunning fish in your own aquarium for years to come.

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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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