Purple Dragon
Guppy Fish
Blue Topaz Big Dorsal Guppy Fish
Blue Topaz Big Dorsal Guppy Fish
Regular price
$15.00 USD
Regular price
Sale price
$15.00 USD
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per
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๐ฆ Live Fish Shipping from $25
ยท Professionally packed for safe arrival
What Guppy Will I Receive?
What Guppy Will I Receive?
Youโll receive a healthy, active guppy matching the strain and gender selected above.
Each fish is individually checked before packing. Because every guppy is unique, natural variations in color, pattern, fin shape and markings are expected.
โ Male vs โ Female โ Which Should I Choose?
โ Male vs โ Female โ Which Should I Choose?
Male
More colorful ยท Larger fins ยท Best for display
Female
Fuller body ยท Usually larger ยท Great for breeding/groups
Want both? Mix males & females in the same order.
ABOUT THIS GUPPY
About the Blue Topaz Big Dorsal Guppy Fish
The Blue Topaz Big Dorsal Guppy Fish combines vivid blue coloration with shimmering highlights and an enlarged dorsal fin that gives this variety a more dramatic profile. Cool blue tones can extend through the body and flowing finnage, while the prominent dorsal rises above the body and adds an extra display element as the fish swims.
This variety belongs naturally within our Premium Blue Guppy Collection , where different strains showcase blue coloration through metallic finishes, patterned tails, and distinctive fin traits. The Blue Topaz Big Dorsal stands apart by combining the recognizable Blue Topaz color family with a noticeably enlarged dorsal fin.
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Blue Topaz Color
Vivid blue tones define the overall appearance
โจ
Shimmering Highlights
Reflective tones add depth under aquarium light
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Big Dorsal Fin
Enlarged dorsal creates a more dramatic profile
๐ง
Flowing Blue Finnage
Cool blue fins add movement and display
HIGHLIGHTS
Why You'll Love the Blue Topaz Big Dorsal Guppy Fish
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Vivid Blue Topaz coloration creates a bright focal point in planted and freshwater aquariums
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Enlarged dorsal fin gives the fish a more pronounced silhouette than standard Blue Topaz varieties
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Shimmering blue highlights can change in appearance as the fish moves beneath aquarium lighting
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Combines strong color and decorative finnage rather than relying on complex body patterning
BLUE TOPAZ BIG DORSAL VARIETY
What Makes the Blue Topaz Big Dorsal Guppy Fish Unique?
The defining character of the Blue Topaz Big Dorsal Guppy Fish comes from the interaction between its cool Blue Topaz coloration and enlarged dorsal fin. While the flowing tail carries much of the bright blue display, the larger dorsal adds another prominent area of color above the body. This changes the overall silhouette and gives the fish a fuller, more decorative profile than Blue Topaz varieties with standard dorsal development.
For the closest comparison, explore the Albino Blue Topaz Big Dorsal Guppy Fish , which keeps both the Blue Topaz coloration and Big Dorsal trait while introducing a lighter Albino appearance. You can also compare the Blue Topaz Fin C Guppy Fish , which stays within the same Blue Topaz family but shifts the visual emphasis from an enlarged dorsal to elongated lower finnage.
โจ
Every Blue Topaz Big Dorsal Guppy Fish Is Unique
This is a Grower Pick variety, so product photos represent the general characteristics of the strain rather than the exact individual fish you will receive. Natural differences can occur in blue intensity, shimmering highlights, dorsal-fin size, tail shape, body coloration, and overall finnage development. Age, genetics, aquarium lighting, shipping stress, and tank conditions can also influence how strongly the Blue Topaz coloration and Big Dorsal trait appear.
EXPLORE MORE
Explore More Fancy Guppy Fish
If you enjoy the vivid blue coloration and prominent finnage of the Blue Topaz Big Dorsal Guppy Fish, explore our Fancy Guppy Fish collection to discover more Blue Guppies, Big Dorsal varieties, fancy-fin Guppies, metallic strains, and colorful patterned Guppies for your freshwater aquarium.
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Purple Dragon
Blue Sapphire Dragon
Purple Lavender Mosaic
Full Gold 24K Ribbon Fin
Koi Red Ear
White Dragon
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Lowest-priced eligible guppy is free. Final discount at checkout.
Handpicked fish. Colors & patterns vary.
Guppy Care GuideCOMPLETE CARE GUIDE
Guppy Fish Care Guide
Everything you need to help your new Guppies settle in, stay healthy, and thrive in your aquarium.
Care LevelEasy
TemperamentPeaceful
Tank Size10+ Gallons
DietOmnivore
AT A GLANCE
Recommended Water Parameters
Temperature72โ82ยฐF
pH6.8โ7.8
Ammonia0 ppm
Nitrite0 ppm
Nitrate<20โ40 ppm
Tank Size10+ Gallons
Adult SizeUp to ~2 inches
Lifespan2โ3 Years
Stability matters most.
Avoid chasing exact numbers with sudden water chemistry changes. A mature, cycled aquarium with stable parameters is generally safer than frequent rapid adjustments.
DAILY CARE
Creating a Healthy Guppy Aquarium
Ideal Tank Setup
Provide a fully cycled, filtered aquarium with plenty of open swimming space. Live plants can provide cover, visual barriers, and a more natural environment.
- Fully cycled aquarium
- Reliable filtration
- Open swimming space
- Live plants recommended
Feeding & Diet
Guppies are omnivores. Offer a varied diet rather than relying on only one food source.
- Quality micro pellets
- High-quality flakes
- Brine shrimp
- Daphnia and other suitable foods
Social Behavior
Guppies are active social fish and generally do well with other peaceful community species when tank size and water requirements are compatible.
- Active swimmers
- Peaceful community fish
- Enjoy group environments
- Avoid aggressive tank mates
Water Quality
Clean, stable water is one of the most important parts of Guppy care. Test the aquarium regularly and perform appropriate routine maintenance.
- Ammonia: 0 ppm
- Nitrite: 0 ppm
- Monitor nitrate
- Perform regular water changes
BEFORE DELIVERY
Prepare Before Your Guppy Arrives
Preparing the aquarium before delivery helps reduce unnecessary stress when your new fish arrives.
1
Cycle the Aquarium
Make sure the aquarium is established and biologically cycled before adding new fish.
2
Test the Water
Check temperature, pH, ammonia, nitrite, and nitrate before delivery day.
3
Prepare the Tank
Confirm filtration is running properly and provide plants or other appropriate cover.
4
Plan for Acclimation
Be available around delivery whenever possible so the fish can be brought indoors and acclimated promptly.
MALE OR FEMALE?
Understanding Guppy Sex Differences
Male Guppy
- Typically brighter and more colorful
- Usually develops longer decorative fins
- Generally has a slimmer body profile
- Popular for colorful display aquariums
GREAT FOR: COLOR & DISPLAY
Female Guppy
- Usually larger and fuller-bodied
- Typically develops shorter fins
- Color may be more subtle than males
- Often selected for groups and breeding
GREAT FOR: GROUPS & BREEDING
Important: Male Guppies may frequently pursue females. If keeping males and females together, provide adequate space, plant cover, and an appropriate group structure. Guppies are livebearers and can reproduce readily in suitable conditions.
DETAILED GUIDE
More Guppy Care Information
Water Parameters & Aquarium Maintenance
Maintain a stable temperature around 72โ82ยฐF and a pH around 6.8โ7.8.
Ammonia and nitrite should remain at 0 ppm. Monitor nitrate and perform routine water changes appropriate for your aquarium's stocking level and filtration.
Avoid making large, sudden adjustments to temperature or water chemistry. Stable conditions are especially important for newly introduced fish.
What & How Often Should I Feed My Guppies?
Feed small portions of high-quality foods that your Guppies can consume within a short period. Avoid allowing large amounts of uneaten food to accumulate in the aquarium.
A varied diet may include quality micro pellets, flakes, brine shrimp, daphnia, and other appropriately sized foods.
Guppy Tank Mates
Guppies generally work best with peaceful, appropriately sized community fish that have compatible water requirements.
Potential tank mates may include peaceful Corydoras catfish, compatible small community fish, and suitable aquarium snails such as Nerite snails. Compatibility can vary depending on aquarium size, stocking, individual behavior, and water conditions.
Adult Neocaridina shrimp may also be an option in a planted tank, but guppies can eat shrimplets. Dense plant cover provides hiding places without guaranteeing their survival.
Keeping Male & Female Guppies Together
Guppies are livebearers and can reproduce readily. Male Guppies may frequently pursue females, so mixed-sex groups require adequate space, cover, and thoughtful group management.
If you do not want fry, consider keeping a same-sex group instead of intentionally mixing males and females.
How to Acclimate a Newly Arrived Guppy
Bring the shipment indoors promptly after delivery. Keep aquarium lighting low and avoid unnecessary handling while the fish is adjusting.
Gradually acclimate the fish to the aquarium's temperature and water conditions. Avoid sudden changes in temperature or chemistry.
Once introduced, allow the fish time to settle before feeding heavily or disturbing the aquarium.
What Is Normal After Shipping?
Newly shipped Guppies can temporarily appear pale, less active, or stressed after transit. Color and activity may improve as the fish adjusts to stable aquarium conditions.
Observe new arrivals carefully. If you notice persistent abnormal behavior or other concerns, check water parameters and document the fish and aquarium conditions.
Every Aquarium & Every Fish Is Different
These care recommendations are general guidelines. Aquarium size, stocking level, filtration, genetics, age, individual behavior, and local water chemistry can affect the needs of your fish.
Customer Review
Customer Reviews
Overall rating: 4.9 / 5 from 27 reviews.
Really nice mix of colors and patterns. All arrived safe and looked healthy right out of the bag.
Very pleased with the quality and packaging. All fish arrived alive and they settled into my planted tank without any issues.
Iโve ordered live fish online a few times and this was one of the smoother experiences. Blue Topaz guppies arrived safe, healthy, and active.
Easy order, good packaging, and healthy fish on arrival. The Blue Topaz color is beautiful and theyโre already doing great in my pond.
Ordered a group for my patio pond and every fish arrived alive, safe, and healthy. The blue color looks amazing in natural sunlight.
My kids picked these because of the bright blue tails and they love them. Fish arrived safe, active, and looking great.
These look awesome in my guppy-only tank. The light blue color gives the whole tank a really clean look.
I bought a small group for my breeding setup and Iโm really happy with them. Healthy fish with strong Blue Topaz color.
Put them in my 20 gallon aquascape and they really stand out against the green plants. Bright blue tails and very active swimmers.
They looked a little pale from shipping at first, but after one night the blue came back strong. Very pretty fish! I will be back for another order
I keep a few different guppy strains and these Blue Topaz are easily one of my favorites. Really clean color and nice body size.
The tails are such a beautiful sky blue. They settled into my community tank fast and started eating the same day.
Added these Blue Topaz guppies to my planted tank and the blue color looks amazing under LED lights. All arrived healthy and active.
I keep several guppy strains and wanted something more elegant looking. These blue topaz guppy is so pretty!
Beautiful and healthy guppies. Very hardy. Already having babies. Amazing !
Beautiful and healthy guppies. Fast shipping. Thank you !!
Heat pack was still warm and the water was clean. Fish were all alive and full of energy!
No stress, no hiding. Just instant energy and color. Great packaging and clear care instructions.
Can't complain, they are pretty with pastel, electric blue
Always easy
The colors on these fish are beautiful, healthy and happyโฆ shipping and packing was perfect โญ๏ธโญ๏ธโญ๏ธโญ๏ธโญ๏ธ
Beautiful fish and it arrived alive and well
Delivered quickly and properly. Live fish was in perfect condition upon receipt.
Arrived live and well!
All my fish arrived alive and healthy. The blue color is even nicer in person than in the pictures.
One male was stressed and hiding near the sponge filter for the first day. He is doing great now and his tail is a beautiful blue.
Arriva alive and healthy, thank you for extra fish
