Galaxy Blue Tail Guppy (Poecilia reticulata) - Tank Bred
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The Galaxy Blue Tail Guppy (Poecilia reticulata) is a stunning modern fancy guppy admired for its intricate galaxy-like body pattern, brilliant iridescent coloration, and vivid blue tail. Carefully tank bred for exceptional health, vibrant color, and aquarium adaptability, this striking livebearer combines dazzling beauty with the peaceful personality and hardy nature that have made guppies one of the world's most popular freshwater aquarium fish.
Male Galaxy Blue Tail Guppies develop the most dramatic coloration, displaying shimmering metallic scales accented by intricate galaxy markings that contrast beautifully with their vibrant blue caudal fin. Under quality aquarium lighting, the iridescent body coloration appears to sparkle as the fish swim through the aquarium, creating a constantly changing display of color. Females exhibit a more subtle appearance with a fuller body shape while retaining the excellent health and genetics that make them ideal for breeding healthy colonies.
Now available in both Regular and Ribbon varieties, hobbyists can choose the body style that best complements their display aquarium or breeding goals. Regular Galaxy Blue Tail Guppies feature the classic streamlined body and finnage associated with fancy guppies, while Ribbon Guppies develop dramatically elongated fin rays that create an exceptionally graceful, flowing appearance that further enhances the beauty of their brilliant blue tail.
Ribbon Males are especially admired for their spectacular extended fins but are generally unable to reproduce naturally because the elongated gonopodium (modified anal fin) prevents successful mating. Ribbon Females, however, remain fully capable of reproducing and are highly sought after by breeders interested in maintaining and improving ribbon-fin bloodlines. Their rarity and breeding value make Ribbon Females one of the most desirable variants available to dedicated guppy enthusiasts.
What We Love About This Fish
- Stunning galaxy-like body pattern paired with a brilliant blue tail that creates a dazzling display under aquarium lighting.
- Available in both Regular and elegant Ribbon varieties to suit display aquariums and selective breeding projects.
- Peaceful, hardy livebearer that thrives in planted aquariums and freshwater community tanks.
- Tank bred for exceptional health, vibrant coloration, and outstanding aquarium performance.
Quick Care Guide
Care Level: Easy. Galaxy Blue Tail Guppies are hardy, adaptable fish that make an excellent choice for both beginner and experienced aquarium hobbyists.
Temperament: Peaceful. These active livebearers coexist well with other small, non-aggressive freshwater fish and invertebrates.
Diet: Omnivore. A varied diet of high-quality flakes, micro pellets, frozen foods, live foods, and vegetable-based supplements helps maintain vibrant coloration, healthy growth, and long-term vitality.
Source: Tank Bred. Carefully bred in captivity for exceptional health, vivid coloration, and excellent aquarium adaptability.
Average Adult Size: Up to 2.25 inches (5.7 cm). Males remain slightly smaller while developing more intense coloration and larger fins, while females grow larger with a fuller body.
Suggested Minimum Aquarium Size: 10 gallons. A planted aquarium with open swimming areas provides plenty of room for a small group to thrive.
Swimming Zone: Upper to Middle Water Column. Galaxy Blue Tail Guppies are constantly active swimmers that bring movement and brilliant color to the upper regions of the aquarium.
Activity Level: Active. These curious fish spend much of the day exploring their surroundings, foraging, and interacting with other members of the group.
Social Behavior: Social. Galaxy Blue Tail Guppies are happiest when maintained in groups where they can display their natural schooling tendencies and active personalities.
Breeding: Livebearer. Females give birth to fully formed, free-swimming fry under suitable aquarium conditions.
Approximate Purchase Size: 1 to 1.25 inches. Young, healthy fish with outstanding coloration and excellent growth potential.
Water Parameters
Temperature: 72°–82°F (22°–28°C). Warm, stable temperatures promote healthy growth, vibrant coloration, and active behavior.
pH: 7.0–8.2. Galaxy Blue Tail Guppies thrive in neutral to moderately alkaline water with stable chemistry.
General Hardness (GH): 8–18 dGH. Moderately hard to hard water provides the minerals needed for healthy growth, breeding success, and long-term vitality.
Carbonate Hardness (KH): 4–12 dKH. Adequate carbonate hardness helps stabilize pH and creates a consistent aquarium environment.
Galaxy Blue Tail Guppies are active, curious fish that spend the day exploring every level of the aquarium while constantly interacting with one another and their surroundings. Their peaceful temperament, eye-catching coloration, and ease of care make them an outstanding choice for planted aquariums, freshwater community tanks, and specialty livebearer collections.
The Galaxy Blue Tail Guppy (Poecilia reticulata) is a selectively bred domestic strain descended from wild guppies native to northern South America and several Caribbean islands. In nature, guppies inhabit slow-moving streams, ponds, marshes, irrigation canals, flooded grasslands, and other calm freshwater environments where aquatic vegetation, submerged roots, and natural structure provide both shelter and abundant feeding opportunities.
These natural habitats support a diverse diet of algae, biofilm, tiny aquatic insects, insect larvae, zooplankton, and microcrustaceans. Wild guppies spend much of the day actively foraging throughout the upper and middle portions of the water column while taking advantage of dense vegetation for protection and breeding.
Our Galaxy Blue Tail Guppies are carefully tank bred for exceptional health, brilliant coloration, and strong aquarium adaptability. Although generations removed from their wild ancestors, they retain the active personality, peaceful temperament, and constant curiosity that have made guppies one of the world's most popular freshwater aquarium fish.
Galaxy Blue Tail Guppies truly stand out in well-planted freshwater aquariums that combine lush vegetation with generous open swimming space. Plant taller species around the back and sides of the aquarium while leaving open areas through the center where these active fish can continuously display their shimmering galaxy pattern and vibrant blue tails. Fine-leaved plants, floating vegetation, and patches of aquarium moss provide additional security while creating ideal refuge for fry if breeding occurs.
Natural hardscape such as driftwood, rounded river stones, and carefully arranged rockwork creates visual interest without limiting swimming space. A darker substrate often enhances the metallic body pattern and brilliant blue tail, allowing the iridescent coloration to appear even more vibrant under quality LED aquarium lighting.
Galaxy Blue Tail Guppies appreciate clean, well-oxygenated water with gentle to moderate circulation and stable water parameters. Regular maintenance, routine water changes, and a thoughtfully aquascaped aquarium help maintain vibrant coloration, healthy finnage, and active social behavior. Whether showcased in a planted community aquarium, a dedicated livebearer display, or a selective breeding project, Galaxy Blue Tail Guppies reward aquarists with constant movement, brilliant color, and exceptional visual appeal.
In the wild, the ancestors of Galaxy Blue Tail Guppies spend much of the day grazing on biofilm, algae, tiny aquatic insects, insect larvae, zooplankton, microcrustaceans, and other naturally available food sources. Their constant grazing behavior makes guppies true omnivores that benefit from a diverse, nutrient-rich diet in the home aquarium.
Galaxy Blue Tail Guppies readily accept a wide variety of prepared aquarium foods. A high-quality tropical flake or micro pellet should form the foundation of their daily diet, providing balanced nutrition that supports healthy growth, immune function, and long-term vitality. Offering several small feedings throughout the day more closely replicates their natural feeding behavior and helps maintain excellent body condition.
To maximize the brilliant metallic body coloration and vibrant blue tail, supplement prepared foods with frozen or live offerings such as baby brine shrimp, daphnia, cyclops, microworms, and finely chopped bloodworms. These protein-rich foods help promote healthy finnage, encourage natural breeding behavior, and bring out the shimmering iridescent colors that make this strain so distinctive.
Galaxy Blue Tail Guppies also benefit from vegetable-based foods and naturally occurring algae. Spirulina flakes, algae-based pellets, and occasional blanched vegetables provide valuable plant matter that supports healthy digestion while creating a more balanced omnivorous diet.
A varied feeding routine combined with excellent water quality is one of the best ways to maintain the vivid coloration, flowing fins, and active personality of Galaxy Blue Tail Guppies. Proper nutrition supports healthy growth, successful reproduction in breeding females, and the dazzling appearance that makes this strain a favorite among fancy guppy enthusiasts.
In the wild, the ancestors of Galaxy Blue Tail Guppies spend much of the day grazing on biofilm, algae, tiny aquatic insects, insect larvae, zooplankton, microcrustaceans, and other naturally available food sources. Their constant grazing behavior makes guppies true omnivores that benefit from a diverse, nutrient-rich diet in the home aquarium.
Galaxy Blue Tail Guppies readily accept a wide variety of prepared aquarium foods. A high-quality tropical flake or micro pellet should form the foundation of their daily diet, providing balanced nutrition that supports healthy growth, immune function, and long-term vitality. Offering several small feedings throughout the day more closely replicates their natural feeding behavior and helps maintain excellent body condition.
To maximize the brilliant metallic body coloration and vibrant blue tail, supplement prepared foods with frozen or live offerings such as baby brine shrimp, daphnia, cyclops, microworms, and finely chopped bloodworms. These protein-rich foods help promote healthy finnage, encourage natural breeding behavior, and bring out the shimmering iridescent colors that make this strain so distinctive.
Galaxy Blue Tail Guppies also benefit from vegetable-based foods and naturally occurring algae. Spirulina flakes, algae-based pellets, and occasional blanched vegetables provide valuable plant matter that supports healthy digestion while creating a more balanced omnivorous diet.
A varied feeding routine combined with excellent water quality is one of the best ways to maintain the vivid coloration, flowing fins, and active personality of Galaxy Blue Tail Guppies. Proper nutrition supports healthy growth, successful reproduction in breeding females, and the dazzling appearance that makes this strain a favorite among fancy guppy enthusiasts.
Tank Mates & Compatibility
Galaxy Blue Tail Guppies are exceptionally peaceful community fish that thrive alongside other small, non-aggressive freshwater species. Their active swimming behavior and outgoing personality make them an excellent choice for planted aquariums, livebearer communities, and peaceful freshwater displays where they can confidently explore the upper and middle portions of the aquarium without intimidating their tank mates.
There is no single "best" tank mate for Galaxy Blue Tail Guppies because many peaceful freshwater species can thrive alongside them. The ideal companions share similar water parameters, have a non-aggressive temperament, and occupy different areas of the aquarium to create a balanced, active community.
Ember Tetra (Hyphessobrycon amandae) – A peaceful nano schooling fish whose brilliant orange coloration creates beautiful contrast against the shimmering blues of Galaxy Blue Tail Guppies.
Neon Tetra (Paracheirodon innesi) – A classic community fish that shares similar care requirements while adding vibrant blue and red coloration to the aquarium.
Harlequin Rasbora (Trigonostigma heteromorpha) – A hardy schooling fish that thrives under the same water conditions and complements the peaceful nature of Galaxy Blue Tail Guppies.
Kubotai Rasbora (Microdevario kubotai) – An energetic nano fish that adds constant movement without competing for territory or resources.
Chili Rasbora (Boraras brigittae) – A tiny, peaceful schooling species that occupies the middle water column while remaining completely compatible with Galaxy Blue Tail Guppies.
Celestial Pearl Danio (Danio margaritatus) – A beautifully patterned nano fish that flourishes in planted aquariums and shares the calm temperament of Galaxy Blue Tail Guppies.
Pygmy Corydoras (Corydoras pygmaeus) – A gentle bottom-dwelling catfish that peacefully occupies the substrate while helping create a balanced community aquarium.
Otocinclus Catfish (Otocinclus spp.) – A peaceful algae grazer that naturally complements planted aquariums while remaining fully compatible with Galaxy Blue Tail Guppies.
Kuhli Loach (Pangio kuhlii) – A shy bottom-dweller that occupies a different level of the aquarium while adding interest without disturbing the guppies.
Mystery Snail (Pomacea diffusa) – A colorful freshwater snail that peacefully coexists with guppies while feeding on algae, biofilm, and leftover foods.
Nerite Snail (Family Neritidae) – One of the best freshwater algae-eating snails, making an outstanding addition to planted aquariums with Galaxy Blue Tail Guppies.
Avoid housing Galaxy Blue Tail Guppies with aggressive or fin-nipping species such as Tiger Barbs, Serpae Tetras, large Cichlids, or other fish that may damage their flowing fins. Ribbon Males deserve additional consideration, as their elongated finnage makes them especially susceptible to fin damage from aggressive or overly active tank mates.
When maintained with compatible species in a stable, well-planted aquarium, Galaxy Blue Tail Guppies display their best coloration, natural behavior, and active personality while creating a vibrant, harmonious freshwater community.
Shrimp Safe
Yes, with consideration. Adult Galaxy Blue Tail Guppies generally coexist well with Cherry Shrimp (Neocaridina davidi), Amano Shrimp (Caridina multidentata), and many other larger dwarf shrimp species. Like most small omnivorous fish, however, they may opportunistically consume newly hatched shrimplets if given the opportunity.
A mature aquarium with dense aquatic plants, mosses, floating vegetation, driftwood, and other natural hiding places greatly improves shrimplet survival while allowing both shrimp and guppies to thrive together. For hobbyists focused on maximizing shrimp reproduction, a shrimp-only aquarium is the best option. In mixed community aquariums, Galaxy Blue Tail Guppies are considered one of the more shrimp-compatible livebearers when adequate cover is provided.
Breeding Difficulty: Easy (Regular Varieties), Intermediate to Advanced (Ribbon Bloodlines)
Reproduction Type: Livebearer
Galaxy Blue Tail Guppies are prolific livebearers that readily reproduce in healthy, well-maintained aquariums. Under suitable conditions, females typically give birth to fully formed, free-swimming fry every 21 to 30 days after mating. Brood sizes commonly range from 20 to 50 fry depending on the age, size, and condition of the female.
A densely planted aquarium with floating plants, fine-leaved vegetation, and aquarium moss provides newly born fry with excellent shelter during their first weeks of life. Feeding newly hatched brine shrimp, microworms, infusoria, and high-quality powdered fry foods promotes rapid growth, healthy development, and exceptional coloration as the young fish mature.
Excellent water quality, stable temperatures, and a varied, protein-rich diet help condition breeding adults while improving fry survival. Providing abundant plant cover or separating pregnant females shortly before they give birth can significantly increase the number of fry that reach adulthood.
Breeding Ribbon Galaxy Blue Tail Guppies requires additional planning. Ribbon Males are generally unable to reproduce naturally because their elongated gonopodium (modified anal fin) prevents successful mating. As a result, Ribbon Males are primarily maintained as ornamental fish where their spectacular finnage can be fully appreciated.
Ribbon Females remain fully fertile and play an essential role in maintaining ribbon-fin bloodlines. Experienced breeders typically pair Ribbon Females with carefully selected non-ribbon males carrying the desired genetics to continue producing Ribbon offspring through selective breeding. Because of their breeding value and comparatively limited availability, Ribbon Females are considered one of the most desirable variants among dedicated guppy breeders.
With careful selective breeding, excellent nutrition, and consistent aquarium maintenance, Galaxy Blue Tail Guppies reward hobbyists with healthy fry, brilliant coloration, and opportunities to preserve and further develop this spectacular modern fancy guppy strain.
Is the Galaxy Blue Tail Guppy a good fish for beginners?
Yes. Galaxy Blue Tail Guppies are hardy, adaptable, and easy to care for, making them an excellent choice for both beginner and experienced aquarium hobbyists. Their peaceful temperament and willingness to accept a wide variety of foods make them one of the easiest fancy guppies to maintain.
How large do Galaxy Blue Tail Guppies get?
Adult Galaxy Blue Tail Guppies typically reach approximately 2 to 2.25 inches (5 to 5.7 cm) in length. Males remain slightly smaller while developing more vibrant coloration and larger fins, while females grow larger with a fuller body shape.
What makes the Galaxy Blue Tail Guppy different from other guppies?
Galaxy Blue Tail Guppies are admired for their shimmering metallic "galaxy" body pattern combined with a brilliant blue tail. The iridescent scales create a sparkling appearance under aquarium lighting, making this one of the most visually striking modern fancy guppy strains.
Are Galaxy Blue Tail Guppies peaceful?
Yes. Galaxy Blue Tail Guppies are peaceful community fish that coexist well with other small, non-aggressive freshwater species. They are social, active fish that thrive in planted community aquariums.
Can Galaxy Blue Tail Guppies live in a community aquarium?
Absolutely. Galaxy Blue Tail Guppies are excellent community fish when housed with peaceful tetras, rasboras, corydoras, otocinclus, kuhli loaches, and compatible freshwater snails.
Can Galaxy Blue Tail Guppies live with shrimp?
Yes, with consideration. Adult Cherry Shrimp (Neocaridina davidi), Amano Shrimp (Caridina multidentata), and other larger dwarf shrimp generally coexist well with Galaxy Blue Tail Guppies. Newly hatched shrimplets, however, may occasionally become food if sufficient cover is not available.
What do Galaxy Blue Tail Guppies eat?
Galaxy Blue Tail Guppies are omnivores that thrive on a varied diet consisting of high-quality flakes, micro pellets, frozen foods, live foods, spirulina-based foods, and occasional vegetable matter. A diverse diet helps maintain vibrant coloration, healthy growth, and overall vitality.
How often should I feed Galaxy Blue Tail Guppies?
Galaxy Blue Tail Guppies benefit from two to three small feedings each day. Offering smaller meals more closely resembles their natural feeding behavior while helping maintain excellent water quality.
Can Galaxy Blue Tail Guppies be bred at home?
Yes. Galaxy Blue Tail Guppies are prolific livebearers that reproduce readily in healthy aquariums. Females typically give birth to fully formed, free-swimming fry every three to four weeks.
Can Ribbon Male Galaxy Blue Tail Guppies reproduce?
In most cases, no. Ribbon Male Galaxy Blue Tail Guppies are generally unable to reproduce naturally because their elongated gonopodium prevents successful mating. They are primarily maintained for their exceptional ornamental beauty.
Can Ribbon Female Galaxy Blue Tail Guppies breed?
Yes. Ribbon Female Galaxy Blue Tail Guppies remain fully fertile and are highly valued by breeders interested in maintaining and improving ribbon-fin bloodlines.
Why are Ribbon Female Galaxy Blue Tail Guppies so rare?
Ribbon Female Galaxy Blue Tail Guppies are produced in much smaller numbers than standard females and are frequently retained by breeders for future breeding projects. Their limited availability makes them one of the most desirable ribbon guppy variants.
Do Galaxy Blue Tail Guppies need a heater?
Yes. Galaxy Blue Tail Guppies are tropical freshwater fish and should be maintained between 72° and 82°F, with stable temperatures helping promote healthy metabolism, vibrant coloration, and long-term health.
Do Galaxy Blue Tail Guppies prefer hard or soft water?
Galaxy Blue Tail Guppies thrive in moderately hard to hard water with a GH of 8 to 18 dGH and a KH of 4 to 12 dKH. These mineral-rich conditions closely resemble what guppies have adapted to over generations and support healthy growth, breeding, and overall vitality.
How long do Galaxy Blue Tail Guppies live?
With proper care, Galaxy Blue Tail Guppies typically live 2 to 3 years, although exceptional water quality, excellent nutrition, and low-stress conditions may help some individuals live even longer.
Do Galaxy Blue Tail Guppies need to be kept in groups?
Yes. Galaxy Blue Tail Guppies are naturally social fish that are most active and confident when maintained in small groups. Keeping multiple guppies allows them to display their natural social behavior while creating a more vibrant aquarium.
Are Galaxy Blue Tail Guppies active swimmers?
Very much so. Galaxy Blue Tail Guppies spend much of the day swimming throughout the upper and middle portions of the aquarium, exploring plants, interacting with one another, and constantly foraging for food.
Will Galaxy Blue Tail Guppies eat algae?
Galaxy Blue Tail Guppies will graze on soft algae, biofilm, and microorganisms growing on aquarium surfaces, but they should not be relied upon as primary algae control. Their grazing behavior simply provides an additional natural food source between feedings.
What size aquarium is best for Galaxy Blue Tail Guppies?
A 10-gallon aquarium is suitable for a small group, while 20 gallons or larger provides additional swimming space, greater water stability, and more opportunities to create a lush planted aquascape where Galaxy Blue Tail Guppies can display their best coloration.
What fish should not be kept with Galaxy Blue Tail Guppies?
Avoid aggressive or fin-nipping species such as Tiger Barbs, Serpae Tetras, many larger Cichlids, and other fish that may harass or damage their flowing fins. Ribbon Males should be given extra consideration because their elongated fins are even more vulnerable to fin nipping.
How can I make the colors of my Galaxy Blue Tail Guppies more vibrant?
Brilliant coloration develops through a combination of genetics, excellent water quality, a varied diet rich in quality proteins and carotenoids, stable water parameters, and quality aquarium lighting. A dark substrate and heavily planted aquarium also help accentuate the shimmering galaxy pattern and vivid blue tail.
What is the difference between a Galaxy Blue Tail Guppy and a Blue Moscow Guppy?
While both strains feature beautiful blue coloration, Galaxy Blue Tail Guppies are recognized for their intricate metallic galaxy pattern combined with a brilliant blue tail. Blue Moscow Guppies typically display a more uniform, solid blue coloration that extends across much of the body and fins.
What is the difference between a Galaxy Blue Tail Guppy and a German Tuxedo Guppy?
Galaxy Blue Tail Guppies emphasize their sparkling metallic body pattern and vibrant blue tail, creating a modern, highly iridescent appearance. German Tuxedo Guppies are known for their classic tuxedo body pattern, contrasting coloration, and elegant, time-tested bloodline that has remained popular with guppy enthusiasts for decades.
Would Aquatic Arts recommend the Galaxy Blue Tail Guppy for my aquarium?
Absolutely. If you're looking for a peaceful, active, and exceptionally colorful livebearer, the Galaxy Blue Tail Guppy is one of our favorite recommendations. Its shimmering galaxy pattern, vivid blue tail, easy care requirements, and availability in both Regular and Ribbon varieties make it an outstanding choice for planted aquariums, freshwater community tanks, and dedicated fancy guppy collections alike.
For the safety of our animals, we only ship live fish, crabs, and select other inverts exclusively via UPS 1 Day Air. If your order contains this item, you will only see UPS 1 Day Air as a shipping option during checkout. If other items are in your cart that can ship with 2 day or standard shipping options the only shipping method you can still select is UPS 1 Day Air.
UPS 1 Day is a description of the duration of time a shipment will spend in transit once it has been shipped. This does not guarantee the package will be shipped the same or next day from which the order was placed.
Shipping Schedule for this service
Current Handling Time:
1-9 business days
Here at Aquatic Arts, we consider the welfare of the live animals we are shipping to be of the foremost importance. This process is much more involved than simply creating a shipping label and affixing it to a box. Depending on the order, it takes from 4 to 7 people to complete this process properly. We check the weather conditions here where they fly out of the Indianapolis UPS facility and the destination for each shipment. We start early each morning and go through a multi-step process to have the day's shipments prepared in time for the UPS pickup. The volume of orders in our system also affects the processing time. Therefore our stated handling time is 1-9 business days.
Shipping Rate
Pricing is by size of package needed to fill entire order and distance it must travel. It will be calculated at checkout.
Live Arrival Guarantee
We stand behind the health and quality of every Galaxy Blue Tail Guppy (Poecilia reticulata) we ship. Each fish is carefully quarantined, observed, and conditioned before shipment to help ensure it arrives healthy, active, and ready to thrive in its new aquarium.
Every Galaxy Blue Tail Guppy is covered by our 100% Live Arrival Guarantee. In addition, every fish order ships in the Aquatic Arts Live Arrival Guarantee Box at no additional charge, providing the insulation and protection needed for safe transit throughout the year.
If an issue occurs during shipping, please email clear photos of the fish along with your order information to info@aquaticarts.com as soon as possible so our team can assist you promptly.
For complete details about our Live Arrival Guarantee and claim process, please visit our Refund Policy:
https://aquaticarts.com/policies/refund-policy
Thank you for choosing Aquatic Arts. We appreciate the opportunity to be part of your aquarium journey.
Best Fishes,
The Aquatic Arts Team