The Fish Guru

Fascinating Facts about Axolotl: From Regeneration to Breeding

Introduction to Axolotl

If you’re a pet enthusiast, or just someone who enjoys quirky animals, chances are you’ve heard about the axolotl. As an amphibian, the axolotl is a unique creature with some fascinating abilities.

In this article, we’ll explore some of the most interesting facts about axolotl- from their physical appearance to their ability to regrow body parts. We’ll also examine why some people choose to keep them as aquarium pets and why they’re considered a delicacy in some cultures.

Axolotl as an Amphibian

The axolotl, also known as the Mexican salamander or the Mexican walking fish, is an amphibian that is native to Mexico. They belong to the family Ambystomatidae, which contains 32 species of salamanders found in North America.

Unlike most amphibians, axolotls retain their larval features throughout their lives, including their gills, which allow them to breathe underwater. They can also breathe air through their lungs, making them a unique kind of amphibian.

Axolotls are fascinating creatures because of their ability to regenerate limbs, spinal cord, heart, and other organs. This remarkable ability has made them a popular subject for scientific research into tissue regeneration.

Axolotls have been used as models in research into spinal cord injury, heart disease, and cancer.

Axolotl as a Quirky Aquarium Pet

If you’re looking for an unconventional pet, look no further than the axolotl. While not a mainstream choice, some people do keep axolotls as pets in their aquariums.

With their quirky appearance and unique characteristics, axolotls can make an interesting addition to any aquarium.

However, axolotls require specific care to thrive.

They do best in a large tank with clean, cool water that is changed often. They also need a varied diet of aquatic insects, worms, and shrimp to stay healthy and happy.

Additionally, axolotls are social creatures and should be kept with other axolotls for companionship.

Facts about Axolotl


One of the most fascinating facts about the axolotl is its incredible ability to regrow body parts. Axolotls can regenerate limbs, spinal cords, hearts, and other vital organs, which sets them apart from other animals.

Scientists have been studying axolotl regeneration for decades in the hope of applying its principles to human medicine.

Physical Characteristics

Axolotls have a unique appearance that is part of their charm. They have a wide, flat head, feathery gills, and a long tail.

Their skin ranges in color from light brown to black and can even be white or pink. Axolotls also have two tiny, lidless eyes that can move independently of each other, allowing them to keep an eye on their surroundings.

Axolotl as an Edible Species

While axolotls are often kept as pets, they are also considered a delicacy in some cultures. In Mexico, they are used in traditional dishes like ajolote, which is a stew made with axolotl meat.

Historically, axolotls were farmed for food before they became an endangered species. Today, the Mexican government has made it illegal to export or sell axolotls, as they are a protected species.


Axolotls are fascinating creatures that capture the attention of pet enthusiasts and scientists alike. Their unique physical characteristics and ability to regenerate body parts have made them popular research subjects and increasingly popular pets.

While they are not a mainstream pet, axolotls can make an interesting addition to any aquarium with proper care and attention. The axolotl’s unique place in the animal kingdom makes them an essential species to preserve for future generations to enjoy.

Where to Find Axolotl in the Wild

The axolotl is native to Mexico, specifically the Lake Xochimilco and Chalco complex. These lakes are located in the valley of Mexico City and are the only known natural habitat for axolotls.

In the wild, axolotls are omnivores and feed on small aquatic animals, such as insects, crustaceans, and fish.

Endangered Status of Axolotl

Axolotls are listed as critically endangered by the International Union for Conservation of Nature (IUCN). Over the years, the population of axolotls in the wild has drastically declined.

This decline is due to several factors, including habitat destruction, pollution, and overexploitation. The introduction of non-native fish species, such as tilapia and carp, has also had a negative impact on axolotls.

These fish eat the same prey as axolotls and compete with them for resources.

Rarity of Sightings

Axolotls are challenging to spot in the wild. They are nocturnal and tend to hide during the day, making them difficult to see.

Additionally, they are skilled at blending in with their surroundings, so even if you were to encounter one, it may be challenging to recognize. Unfortunately, the decline in the population of axolotls has also contributed to a reduced chance of sightings.

Habitat of Axolotl

Axolotls are found exclusively in freshwater habitats, specifically the shallow, muddy waters of the Lake Xochimilco and Chalco complex. These lakes are surrounded by wetlands and are fed by underground springs.

The habitat of axolotls is unique because of the muddy, weedy, and murky waters they inhabit. The pH levels in the water are also crucial, and axolotls prefer water with a pH of around 7.4.

Axolotl Breeding

Breeding axolotls is a complex process that requires attention to detail and specific conditions. In the wild, axolotls breed once a year, usually in late winter or early spring.

However, in captivity, axolotls can breed year-round. Understanding the breeding process of axolotls is crucial to successful breeding.

Reproductive Process

Axolotls are sexually mature at around 12 to 18 months of age. Females are slightly larger than males, and eggs are produced by the female after a successful mating.

The eggs are typically laid on the substrate, and the male then fertilizes them. After fertilization, axolotl eggs take around 14 days to hatch, and the larvae will remain attached to the substrate for a few days before becoming free-swimming.

Age and Size Considerations for Breeding Axolotl

Axolotls reproduce best when they are at least 18 months old and are sexually mature. Males should be 6 to 8 inches long before they are used for breeding, while females should be at least 10 inches long.

Additionally, breeding axolotls should be healthy and well-fed. Underfed or unhealthy axolotls can suffer adverse effects, such as reduced fertility or stunted growth.

Breeding Conditions for Axolotl

Axolotls need specific tank conditions to thrive and reproduce successfully. The breeding tank should be at least 18 inches deep and 30 inches long to provide enough space for three to four axolotls.

The water temperature should be maintained between 14 and 18 degrees Celsius, which is the optimal temperature for breeding. The substrate should be coarse sand or gravel to provide spawning sites for the eggs.

Additionally, the breeding tank should have ample plants and hiding places to keep the axolotls comfortable and relaxed. Lastly, the tank should receive appropriate lighting to mimic the natural cycle of daylight.


Axolotls face several challenges that have made them critically endangered, but they still thrive in specific areas of Mexico. Breeding axolotls requires proper attention to detail, specific breeding conditions, and consideration of age and size.

It is essential to understand the breeding process of axolotls to successfully breed them. By continuing to learn about axolotls, we can work to preserve their habitat and protect this unique species from extinction.

Handling Axolotl Eggs and Larvae

Breeding axolotls can be a rewarding experience, as it allows you to witness the unique reproductive process of these fascinating creatures. But once the eggs are fertilized, they need special attention to ensure their survival.

In this article, we’ll discuss how to separate axolotl eggs from adults and how to care for axolotl larvae.

Separating Axolotl Eggs from Adults

Once axolotl eggs are fertilized, it’s essential to separate them from the adults. Separating eggs from adults ensures that the eggs are not accidentally eaten or trampled.

To separate the eggs, you should first transfer them from the breeding tank to an egg separator – a container that is specifically designed to keep the eggs safe and healthy. The separator should have a weak aeration system, and a filter should be installed to keep the water clean.

During the first few days after hatching, the larvae are relatively delicate and fragile, so it is best to leave them in the egg separator until they are a bit older and more robust. Once the larvae are around 4 to 5 days old, they can be transferred to a rearing tank, which is set up specifically for their needs.

Caring for Axolotl Larvae

The larvae of axolotls require specific care to thrive and grow into healthy adults. One of the critical aspects of caring for axolotl larvae is their diet.

They need live food to survive, and their diet consists of small aquatic organisms and brine shrimp. Live food can be purchased from a pet store, or you can cultivate it yourself.

Culturing your own live food is an affordable and straightforward option that produces fresher and healthier food for your larvae. Another aspect of caring for axolotl larvae is the water quality.

The water in the rearing tank needs to be kept clean and healthy to avoid any contamination that could cause health issues for the larvae. A filter should be installed to remove waste and debris, and the water should be changed often, about 25% per day.

The temperature of the water is another crucial consideration when caring for axolotl larvae. The rearing tank water should be heated and maintained at around 18 to 20 degrees Celsius to provide the optimal temperature for growth and development.

In addition to ensuring proper nutrition, water quality, and temperature, the larvae’s physical surroundings are essential to their growth. The rearing tank should have hiding places and plants for the larvae to cling to, as they don’t have the strength to swim for long periods.

Providing a comfortable and safe environment for the larvae helps prevent malformations and stress.


Breeding axolotls and caring for their eggs and larvae is an enriching experience that can provide a unique insight into the fascinating world of these creatures. Proper separation of eggs from adults, setting up a specialized rearing tank, and providing a nutritious diet are crucial to the survival and growth of axolotl larvae.

With the right care and attention, axolotl larvae eventually transform into robust and healthy adults, adding to the ever-growing population of this unique and endangered species. Breeding and caring for axolotls require attention to detail and specific conditions.

Separating axolotl eggs from adults and caring for their larvae are crucial to their survival and growth. Proper nutrition, water quality, and temperature help axolotl larvae develop into healthy adults, while providing a comfortable and safe environment aids in preventing health malformations and stress.

Breeding axolotls can provide a unique insight into their fascinating world, with the right care and attention leading to a healthy and growing population of these unique and endangered creatures. It’s crucial to learn about axolotls to preserve their habitat and protect them from extinction.

Popular Posts