Firefly Axolotl: Species Profile, Care Guide & Pictures

Firefly axolotl top view in its tank
Image credit: boba_the_axolotl / Instagram

The extraordinary firefly axolotl is recognized for its bright neon colors, with their glow as mesmerizing as a summer firefly. This unique feature makes them an interesting addition to your aquarium.

Contrary to their fiery name, these fascinating amphibians dwell underwater, perfectly at home in cool environments. They’ll make captivating pets if you’re prepared to provide them with the care they need.

This guide aims to help you understand these stunning creatures better. You’ll find details on their unique traits, how they are made, and essential care instructions. Let’s dive in!

What Is a Firefly Axolotl?

Firefly axolotl walking in its tank
Image credit: boba_the_axolotl / Instagram

A firefly axolotl, known scientifically as Ambystoma mexicanum, is a fascinating variety of the Mexican salamander species. It is known for its vibrant colors and unique features reminiscent of a firefly. It’s a result of selective breeding practices carried out to achieve its standout physical characteristics.

The mesmerizing display of colors, often a mix of yellow, green, and gold, seems to “glow” in certain light conditions, giving it a firefly-like luminescence. Sometimes, they are also referred to as lightning bug axolotl.

The firefly axolotl’s regenerative capabilities, a common trait among this amphibious species, add to its allure.

Despite its charm, keeping a firefly axolotl requires meticulous care. They are highly sensitive to changes in their aquatic environment, demanding clean water, a balanced diet, and a moderate temperature to thrive.

How Are Firefly Axolotls Made?

Unlike their axolotl relatives, firefly axolotls are not a naturally occurring variant. In fact, they are man-made. To create a firefly axolotl, a process called embryonic grafting is employed. 

This process, widely used in limb regeneration studies, involves the manipulation of the animal at the embryonic stage. The axolotl’s defining feature, a tail of a different color, is obtained through this grafting process. 

But contrary to popular belief, tail-switching doesn’t occur when they are hatchlings. Rather, it takes place during the embryonic stage, when the creature cannot yet feel pain.

Once the firefly axolotls hatch, they display varying tail colors from the grafting process. These contrasting hues between the body and tail lead to their unique appearance, often compared to the illumination of a firefly. 

Each firefly axolotl looks different due to the variability in this process, resulting in a broad array of enchanting color combinations.

Having spent a considerable amount of time researching and writing about exotic pets, I developed a keen interest in axolotls. 

They were first brought to my attention during a conversation with a renowned herpetologist who had spent a significant part of his career researching axolotls.

A few years ago, I was fortunate enough to be invited to a laboratory specializing in axolotl research. Here, I got a firsthand view of the embryonic grafting process.

This scientific procedure involved the fusion of different parts from axolotl embryos, creating a creature with a colorful and contrasting body and tail. It was definitely a meticulous process.

The fact that axolotls never truly “grow up,” combined with their adorable appearance, not only adds to their allure but also underscores the urgent need to protect them from extinction. 

The Ethics of Firefly Axolotls

Firefly axolotl front view
Image credit: boba_the_axolotl / Instagram

Firefly axolotls are unique amphibians that were first created through embryonic skin grafting by Lloyd Strohl II for melanocyte distribution research. 

This process didn’t harm the axolotls, as the grafting occurred before they could feel pain. The result was axolotls with swapped tails, which gained popularity and were sold as pets.

However, the ethics surrounding the creation of firefly axolotls have been questioned. The axolotls being created today undergo grafting after hatching. 

Despite being anesthetized during surgery, these axolotls receive no pain relief afterward. Furthermore, these operations are performed for cosmetic purposes, unlike Strohl’s research-based intent.

There’s a growing market for these artificially altered axolotls. Some operations now target more invasive areas like the abdomen, face, and eyes. 

Consequently, there have been instances of disfigurement and even induced blindness. Axolotls are increasingly being mutilated for more intricate tail patterns, such as checkerboard or candy corn designs.

Many in the axolotl community find these practices unethical, especially as the axolotls are no longer embryonic during these alterations. 

Yet, as long as demand for unique axolotl morphs exists, there will likely be breeders continuing these procedures.

Firefly Axolotl Appearance

Firefly axolotl in a tank
Image credit: boba_the_axolotl / Instagram

The firefly axolotl offers a peculiar yet captivating look. This is primarily due to its dual color scheme, which involves both albino and wild axolotl traits. 

This contrast of colors, composed of a dark body and a brightly glowing tail, inspires the name “firefly.” The fluorescence in their tail is especially eye-catching in the dark, akin to a firefly’s luminescence.

The glow-in-the-dark quality of their tails is a product of a green fluorescent protein present in the albino portion, similar to those found in GFP axolotls.

I was able to take care of one of these beautiful creatures, and I can attest that regardless of their uncommon coloring, firefly axolotls share common characteristics with their axolotl cousins.

I can fondly remember my pet’s body structure, which features an ever-smiling face, a round, broad head, and an eel-like body. 

They also have short legs and external gills that look like fins. These features remain constant, marking them clearly as axolotls despite their unique colors.

Despite the various color combinations, no two firefly axolotls look the same. This uniqueness in their appearance makes them incredibly appealing as pets.

Fun Fact: Aside from axolotls, did you know that there are a lot of other fish species with legs? Check them out here!

Firefly Axolotl Temperament and Behavior

Despite their striking appearance compared to normal axolotls, they exhibit the same behaviors, requiring a specific approach to their handling and care.

Axolotls, including the firefly variant, are completely aquatic creatures with delicate bodies, meaning they’re not pets to be frequently handled. 

Interaction with them is primarily visual, with these interesting creatures providing amusement through their movements within their aquatic environment. 

They can be quite bold, often moving around their tank unbothered by human observation.

Interestingly, some firefly axolotls will approach the side of their tank when a person is nearby, exhibiting a form of curiosity in their own special way.

But remember, they aren’t social animals and prefer to live alone. They can potentially live with other axolotls, but there’s a risk of cannibalistic tendencies, especially among juveniles.

As owners or potential owners, remember that axolotls are a species to admire, observe, and care for with respect and sensitivity to their unique needs.

Firefly Axolotl Lifespan and Health Issues

Firefly axolotl up close
Image credit: boba_the_axolotl / Instagram

Firefly axolotls live fascinating lives that can span up to 15 years. Just like their non-glowing counterparts, they thrive in stable aquatic environments and require diligent care to maintain good health.

However, firefly axolotls are not immune to health issues. Some of the common diseases that may affect them include:

  • Bacterial infection: Firefly axolotls can be affected by red leg bacteria due to poor water quality. This can result in red patches on the axolotl’s body along with fin rot, tail rot, and ulcers. Antibiotics are commonly used to eliminate bacteria.
  • Fungal infection: Your firefly axolotl can also suffer from fungal infections, which usually appear as fuzzy, white patches on the body. Those affected by Saprolegnia fungus, in particular, may have damaged internal tissues and organs.
  • Impaction: This can occur when firefly axolotls ingest gravel or other substrate materials, obstructing their digestive system. If you notice that your pet refuses to eat for several days, it may have swallowed something that caused the blockage.
  • Stress syndrome: When a firefly axolotl is constantly stressed, it can lead to various health problems, including a weakened immune system, weight loss, and lethargy. Bad water parameters, strong water currents, and an overcrowded tank may increase stress levels. 

Keeping the aquarium clean and providing a healthy diet can help prevent these ailments. Regular check-ups and immediate attention to any visible health problems can enhance the axolotl’s lifespan.

Firefly Axolotl Care Guide

Firefly axolotls, like their wild counterparts, have complex care requirements that potential owners should understand before deciding to keep one.

This means having knowledge of how to properly set up their tank and water parameters along with appropriate diet and feeding frequency.

Tank Setup

Axolotls are bottom dwellers that require spacious enclosures. For a single firefly axolotl, it’s suggested to start with at least a 29-gallon aquarium. But if possible, a 40-gallon tank is even better. 

As Fireflies grow fast and produce lots of waste, a larger tank will help manage the waste effectively and provide more room for your pet to roam.

The tank’s shape should favor length over height, giving the axolotl more floor to explore. They are also known to jump, so having a lid on your tank is a safety must.

A good tank setup also includes appropriate decorations and substrates. Avoid sharp objects that could cause injuries, and include plenty of hiding spaces. Remember, these axolotls are shy and enjoy their privacy.

Water Parameters

Firefly axolotls, like their axolotl kin, thrive in cooler water conditions. The temperature should be kept between 60 and 65°F. Regular monitoring is crucial to prevent fluctuations that can stress or harm your axolotl.

These pets also need stable water parameters. The pH should range from 6.5 to 8. A nitrate level below 20 ppm is essential, as high nitrate levels are harmful. 

Water conditioners can be used to neutralize harmful chemicals in tap water, ensuring a safe and stable environment for your axolotl.

In addition, be sure to choose a filter that doesn’t create a strong water flow, as axolotls aren’t fast swimmers and don’t enjoy overpowering currents. 

Some owners use sponge filters as they process water without creating too much flow.

Diet and Feeding

Axolotls are carnivorous. A varied diet rich in proteins is ideal for their growth and health. Feeding can be done with worms or specialized pellets. 

It is important to provide an appropriate amount of food to prevent obesity and water contamination.

It’s recommended to establish a feeding schedule, as regular feeding can aid digestion and prevent overfeeding. Remember, every axolotl is unique, so observe your pet’s eating habits and adjust their diet as needed.

Firefly Axolotl Special Abilities: What Makes Them Different?

Firefly axolotl top view
Image credit: boba_the_axolotl / Instagram

Firefly axolotls possess unique features that set them apart. Their special abilities make them captivating creatures with traits that even seem supernatural. 

First, these critters have mastered the art of regeneration. Unlike most animals, they can rebuild almost every part of their body. This includes limbs, spines, internal organs, and even some parts of their brains.

The axolotl displays a characteristic called neoteny. This means they retain juvenile features throughout their life, unlike other salamanders. 

For instance, even though they develop lungs as they grow, they never lose their gills. This enables them to live their entire lives underwater, making them one of the few salamanders to do so.

Firefly axolotls possess a coloration that differs from other axolotls. A mutation allows their skin to glow, making them distinct. 

Their glowing bodies are a sight to behold, presenting a mix of natural axolotl coloring with mesmerizing light-emitting areas. 

Just like the insects they are named after, these firefly axolotls provide their own source of light, making them unique.

Frequently Asked Questions

Firefly axolotl side view
Image credit: boba_the_axolotl / Instagram

Are Firefly Axolotls Rare?

Firefly axolotls are indeed quite rare. Unlike other axolotl variants, firefly axolotls do not exist in nature but are man-made. 

They were artificially developed by Lloyd Strohl through a process known as embryonic graphing involving the fusing of embryos. 

Because they are produced in a laboratory, they are very rarely available. Their unique appearance and rarity make them particularly appealing as pets.

Are Firefly Axolotls Ethical?

The ethics of creating and keeping firefly axolotls is a topic of debate. Some people believe that breeding axolotls in captivity provides educational opportunities.

Through breeding these rare morphs, enthusiasts better understand their natural habitat and contribute to species survival by protecting wild populations from over-collection.

However, others argue that removing axolotls from their natural habitat disrupts the ecosystem, leading to a decrease in naturally occurring gene pools and genetic diversity.

Additionally, the process of embryonic graphing, used to create firefly axolotls, has raised concerns among some animal welfare advocates, who argue that it is unethical to use such methods for creating pets.

Are Firefly Axolotls Endangered?

As per the information available, firefly axolotls, which are a man-made variant, are not classified as endangered. 

However, it’s worth noting that the wild axolotl, native to a small number of lake systems in Mexico, is critically endangered in the wild due to habitat loss and pollution. 

Wild axolotls are currently protected under the law, with capture and trade being highly regulated. Firefly axolotls, on the other hand, do not exist in the wild and are only bred in captivity.


We’d love to hear about your experiences with these wonderful creatures. Please leave a comment below and share your firefly axolotl stories with us.

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