Blue Cobra Guppy: A Comprehensive Guide to Care, breeding, feeding and more

blue cobra guppy

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Blue Cobra Guppy: A Comprehensive Guide to Care, breeding, feeding and more

Blue Cobra Guppy also known as poecilia reticulata, cobra blue guppy, Blue tail Cobra Guppy or the Blue King Cobra Guppy. We’re going to dive into the care of a special type of freshwater fish called the Blue Cobra guppy. Blue Tail Guppies come in many colors and patterns, and one of the most eye-catching is the Blue Cobra guppy. These little fish are like living jewels in your fish tank.

In this easy-to-understand guide, we’ll learn all about these Blue Cobra guppies. We’ll cover how to take care of them, how they have their babies (fry) , what other fish they get along with (guppy tank mates), what they eat and how to keep them healthy and happy.

So, whether you’re new to fishkeeping or you’ve been doing it for a while, the Blue Cobra guppy is a fantastic addition to your aquarium. Their dazzling colors and cool patterns make them a real treat for your eyes. Let’s start our journey into the world of these wonderful little fish!

Blue Cobra Guppy Origin

The Blue Cobra guppy (Poecilia reticulata), renowned for its striking appearance, has an intriguing history. These fish originated in the freshwaters of northeastern South America, specifically in the Amazon River basin and the Orinoco River drainage. They are part of the Poeciliidae family, commonly referred to as livebearers. Blue Cobra guppies, like other guppy varieties, were first discovered in Trinidad and Tobago.

Blue Cobra Guppy Appearance

 poecilia reticulata, cobra blue guppy, Blue tail Cobra Guppy, blue cobra guppy
©live aquaria

The Blue Cobra guppy is a visually captivating species. They are well-known for their distinct features, which include:

  • Coloration: Blue Cobras exhibit vibrant, iridescent blue coloring along their bodies, often with contrasting patterns that resemble cobra stripes. The metallic blue hue is particularly striking and sets them apart from other guppy varieties.
  • Fins: These guppies have long, flowing fins, including a distinctive dorsal fin that showcases their intricate patterning. The tail fin, known as the caudal fin, is also elongated, adding to their overall elegance.
  • Size: Typically, Blue Cobra guppies reach a size of about 1.5 to 2 inches (3.8 to 5 centimeters) when fully grown.
  • Sexual Dimorphism: Males are usually smaller and more colorful than females, with their elongated dorsal and caudal fins. Females have a rounder, plumper appearance and lack the vibrant coloration of males.
  • Gestation Spot: Female Blue Cobra guppies possess a gravid spot near their anal fin, which darkens as they become pregnant, making it easier to distinguish when they are carrying fry (baby fish).

Blue Cobra Guppy Appearance

ColorationVibrant iridescent blue with cobra-like stripes
FinsElongated dorsal and caudal fins
Size1.5 to 2 inches (3.8 to 5 centimeters)
Sexual DimorphismMales are smaller and more colorful; females are rounder and less colorful
Gravid SpotDarkens in pregnant females
source: rate my fish tank
 Blue cobra guppy, poecilia reticulata, cobra blue guppy, Blue tail Cobra Guppy
©earth and jungle

Blue Cobra Guppy Water Parameters

Maintaining suitable water conditions is essential for the health and well-being of Blue Cobra guppies. These fish are adaptable but thrive under specific water parameters:

  • Temperature: Keep the water temperature in the range of 75-82°F (24-28°C). A heater may be necessary in cooler environments to maintain a stable temperature.
  • pH Level: Blue Cobra guppies prefer slightly alkaline water with a pH between 7.0 and 7.8.
  • Hardness: Maintain water hardness (GH) between 8-12 dGH (degrees of general hardness) for optimal health.
  • Ammonia and Nitrite: Keep ammonia and nitrite levels at or near zero, as guppies are sensitive to water quality issues. Regular water changes are crucial to prevent toxic buildup.
  • Filtration: Use a good-quality aquarium filter to ensure proper circulation and removal of impurities.

Blue Cobra Guppy Water Parameters

ParameterIdeal Range
Temperature75-82°F (24-28°C)
pH Level7.0-7.8
Hardness (GH)8-12 dGH
Ammonia/NitriteNear zero

Blue Cobra Guppy Tank Size and Setup

Blue Cobra guppies are relatively small but still require an appropriately sized aquarium to thrive. For a beginner, a 10-gallon tank is a suitable starting point. As you gain experience and potentially expand your guppy population, consider larger tanks.

Setting up the tank should include:

  • Substrate: A fine gravel or sand substrate works well for Blue Cobra guppies, allowing them to display natural foraging behaviors.
  • Plants: Live or artificial aquatic plants, like java moss and java ferns, provide hiding spots and help maintain water quality by absorbing nitrates.
  • Decor: Include caves, driftwood, and rocks to create hiding places and enrich their environment.
  • Filtration: Use a hang-on-back (HOB) or sponge filter to ensure efficient filtration without creating strong currents that may stress the guppies.

Blue Cobra Guppy Tank Setup

Tank Size10 gallons (for beginners)
SubstrateFine gravel or sand
PlantsLive or artificial aquatic plants
DecorCaves, driftwood, rocks
FiltrationHOB or sponge filter

Blue Cobra Guppy Feeding

Feeding Blue Cobra guppies properly is essential for their health and coloration. Their diet should be well-balanced and diverse:

  • High-Quality Flake or Pellet Food: A staple diet of high-quality guppy flakes or pellets provides essential nutrients.
  • Live and Frozen Foods: Supplement their diet with live or frozen foods such as brine shrimp, daphnia, and bloodworms. This enhances their color and overall health.
  • Vegetables: Guppies benefit from occasional vegetable-based foods like blanched spinach or cucumber.
  • Feeding Frequency: Offer small meals two to three times a day, only providing what the fish can consume in a few minutes to prevent overfeeding.

Blue Cobra Guppy Feeding

Food TypeRecommendations
Flake or Pellet FoodStaple diet, high quality
Live/Frozen FoodsBrine shrimp, daphnia, bloodworms
VegetablesOccasional, blanched spinach, cucumber
Feeding Frequency2-3 times a day, small meals

Blue Cobra Guppy Diseases, Treatment, and Prevention

Blue Cobra guppies, like all guppy varieties, are susceptible to common fish diseases. Staying vigilant and proactive can help prevent and manage these issues:

  • Ich (White Spot Disease): Treat with aquarium salt, increased temperature, and medication like copper-based remedies.
  • Fin Rot: Maintain excellent water quality, and consider antibiotic treatment if necessary.
  • Gill Flukes: Use anti-parasitic medications to combat this common problem.
  • Prevention: Regular water changes, quarantine new fish, and avoid overstocking the aquarium to reduce stress and disease risk.

Blue Cobra Guppy Disease Management

Ich (White Spot Disease)Aquarium salt, increased temperature, medication
Fin RotMaintain water quality; antibiotic treatment if needed
Gill FlukesAnti-parasitic medications
PreventionRegular water changes, quarantine new fish, avoid overstocking

Blue Cobra Guppy Tank Mates

When choosing tank mates for Blue Cobra guppies, it’s essential to consider their peaceful nature and avoid aggressive or fin-nipping species. Suitable tank mates include Tank mates are an important consideration when setting up your guppy aquarium. Guppies are generally peaceful fish, and they can coexist harmoniously with various guppy varieties and other compatible species. Let’s explore some suitable tank mates for not only the Blue Cobra guppy but also for other eye-catching guppy varieties like the Green Cobra, Yellow Cobra Guppy:, Red Cobra, and Cobra Mosaic guppies.

  • Other Guppy Varieties: Guppies of different varieties generally get along well and create a colorful and active community.
  • Swordtails: Swordtails share similar water parameter requirements and are generally peaceful.
  • Platies: These fish are compatible due to their peaceful disposition and vibrant colors.
  • Corydoras Catfish: These bottom-dwelling fish are compatible and help keep the tank clean.

Blue Cobra Guppy Tank Mates

Tank MateCompatibility
Other Guppy VarietiesCompatible
SwordtailsGenerally peaceful
PlatiesPeaceful, vibrant colors
Corydoras CatfishBottom-dwelling, tank cleaning

Blue Cobra Guppy Breeding

Guppy breeding can be an exciting aspect of keeping Blue Cobra guppies. Here are some key points to consider:

  • Livebearer Reproduction: Guppies are livebearers, meaning they give birth to live fry rather than laying eggs.
  • Breeding Setup: Separating a pregnant female to a breeding tank with plants for fry to hide in is essential. Breeding traps or breeding boxes can also be used.
  • Fry Care: Ensure the fry have a separate space with appropriate nutrition, such as powdered fry food or crushed flakes.
  • Maturity: Female Blue Cobra guppies can start reproducing at about 3 months of age.

Blue Cobra Guppy Breeding

Reproduction TypeLivebearer
Breeding SetupSeparate pregnant female; breeding tank with hiding spots
Fry CareSeparate space with proper nutrition
MaturityFemales start reproducing at 3 months

Blue Cobra Guppy Plants

Aquatic plants are a vital component of the Blue Cobra guppy’s habitat. They serve various functions, including:

  • Oxygenation: Plants release oxygen during photosynthesis, contributing to a well-oxygenated environment for your fish.
  • Hiding Places: Plants offer hiding spots for guppies, reducing stress and providing security.
  • Water Quality: Live plants help maintain water quality by absorbing nitrates, ammonia, and other impurities.

Some excellent plant choices for Blue Cobra guppy tanks include Java Moss, Java Fern, Anubias, and Hornwort.

Blue Cobra Guppy Plants

Plant TypeFunctions
OxygenationOxygen release during photosynthesis
Hiding PlacesReduces stress, provides security
Water QualityAbsorbs nitrates, ammonia, and impurities
Recommended PlantsJava Moss, Java Fern, Anubias, Hornwort

In conclusion, the Blue Cobra guppy is a fascinating and visually striking fish species originating from South America. By providing the right water parameters, tank setup, diet, and tank mates, you can ensure their well-being and enjoy their beautiful appearance. Understanding their breeding habits and the benefits of aquatic plants adds to the experience of keeping these captivating fish in your aquarium.

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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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