Goliath Birdeater Tarantula: A Comprehensive Care Guide and Species Profile


If you’re interested in keeping one of the largest and most fascinating arachnids in the world, the Goliath birdeater tarantula (Theraphosa blondi) may be the perfect pet for you. With proper care and attention, these amazing creatures can thrive in captivity and make for a unique and rewarding pet experience. In this comprehensive guide, we’ll explore all aspects of Goliath birdeater tarantula care, from their natural habitat and distribution to their feeding, handling, health, and conservation.

Introduction to the Goliath Birdeater Tarantula

Species Overview

The Goliath birdeater tarantula is a fascinating creature that has captured the attention of many spider enthusiasts. As a member of the tarantula family Theraphosidae, which is one of the biggest spider families in the world, these spiders are known for their impressive size and imposing appearance. They are one of the largest and heaviest spiders in the world, with a leg span of up to 11 inches and a weight of up to 6 ounces. Despite their intimidating size, Goliath birdeaters are generally docile and easy to care for, making them a popular choice among tarantula enthusiasts.

One of the most interesting things about the Goliath birdeater tarantula is its name. Despite what its name suggests, this spider does not eat birds. In fact, its diet primarily consists of insects, rodents, and other small animals that it can catch and subdue with its venomous bite.

Natural Habitat and Distribution

Goliath birdeater tarantulas are native to the rainforests of South America, specifically in countries such as Brazil, Venezuela, and Suriname. These spiders are well adapted to life in the rainforest, where they can be found in dense forest floors, living in burrows or silk-lined tunnels. These burrows can be up to 1.5 meters deep and provide a safe haven for the spider to rest and hide from predators.

Living in the rainforest can be challenging, but the Goliath birdeater tarantula has several adaptations that help it survive. For example, it has specialized hairs on its legs that allow it to detect vibrations in the ground, which helps it sense potential prey or predators. It also has a tough exoskeleton that protects it from the elements and predators.

Size and Appearance

The Goliath birdeater tarantula is an impressive sight to behold. Males can reach a leg span of up to 10 inches, while females can grow up to 11 inches. They have a furry body and legs that are covered in hairs and bristles that aid in their sensing abilities. Their coloration can vary from brown, black, and gray, and they often have distinctive markings on their bodies, such as stripes or patches.

One of the most interesting things about the Goliath birdeater tarantula’s appearance is its fangs. These spiders have huge fangs that can be up to an inch long. While this may seem intimidating, it’s important to note that Goliath birdeater tarantulas are generally not aggressive towards humans unless they feel threatened.

Overall, the Goliath birdeater tarantula is a fascinating creature that is well adapted to life in the rainforest. Its impressive size and appearance make it a popular choice among spider enthusiasts, but it’s important to remember that these spiders are still wild animals and should be treated with respect and caution.

Housing and Enclosure

Goliath birdeater tarantulas are fascinating creatures that require a specific type of housing and enclosure to thrive. As one of the largest spiders in the world, the Goliath birdeater requires a spacious and secure environment to live comfortably.

Choosing the Right Enclosure

When it comes to selecting an enclosure for your Goliath birdeater, there are several things to consider. The enclosure should be large enough to provide ample space for the spider to move around and explore. A tank with a minimum size of 18 inches long, 12 inches wide, and 12 inches tall is suitable for an adult tarantula. It’s also important to choose an enclosure with a secure lid, as Goliath birdeaters are able to push open loose lids or even escape through holes or gaps. A locking lid or clips can be used to ensure the enclosure remains secure.

Substrate and Furnishings

The substrate used in the enclosure should be able to hold its shape and provide good drainage as well as retain some level of moisture due to the tarantula’s natural habitat. A mixture of peat moss, vermiculite, and coco coir can be used as substrate. This substrate will provide a natural environment for the spider to burrow and create tunnels. Logs, bark, and plants can also be added to provide the spider with hiding spots and a natural environment. These furnishings will not only create a comfortable environment for the spider, but also make the enclosure visually appealing.

Temperature and Humidity Requirements

Being rainforest dwellers, Goliath birdeaters require a warm and humid environment. The temperature in the enclosure should be kept around 78 to 82 degrees Fahrenheit, with a humidity level of 75% to 80%. A heat source such as a heat mat or heat lamp can be used to provide warmth to the enclosure. It’s important to monitor the temperature and humidity levels regularly to ensure they remain within the appropriate range. A misting schedule of at least once or twice a week can be used to maintain the appropriate levels of humidity. This can be done using a spray bottle or a misting system.

Ventilation and Lighting

Goliath birdeater tarantulas do not require any special lighting. However, ventilation is important to prevent stagnant air and mold growth in the enclosure. Air circulation can be achieved through small vents or by keeping the enclosure door slightly open. It’s important to strike a balance between ventilation and humidity levels to ensure the spider remains healthy and comfortable.

Overall, providing a suitable housing and enclosure for your Goliath birdeater tarantula is essential to its health and well-being. By following these guidelines, you can create a comfortable and secure environment for your spider to thrive in.

Feeding and Nutrition

Diet in the Wild

Goliath birdeater tarantulas are fascinating creatures that have a diverse and varied diet in the wild. These opportunistic predators will consume a wide range of insects and small animals, including frogs, rodents, and even small birds. With their powerful fangs, they inject venom into their prey, which quickly immobilizes or kills them. This unique hunting strategy has allowed them to thrive in their natural habitat and become one of the largest and most fearsome spiders in the world.

Despite their intimidating size and appearance, Goliath birdeater tarantulas are actually quite fascinating creatures to observe in the wild. Their hunting techniques and feeding habits have been studied extensively by scientists and researchers, who continue to uncover new and exciting information about these incredible arachnids.

Feeding Schedule and Frequency

When it comes to feeding Goliath birdeater tarantulas in captivity, it is important to follow a strict feeding schedule and frequency. These spiders should be fed once a week, with the equivalent of an insect between 1/2 to 2 times its body weight. This ensures that the spider gets the nutrients it needs to thrive, without overfeeding or underfeeding it.

It is also important to ensure that the prey is not larger than the tarantula, as this can lead to the spider becoming injured while attempting to consume the prey. By following these guidelines, you can help ensure that your Goliath birdeater tarantula stays healthy and happy in its new home.

Prey Options and Supplements

If you want to add some variety to your Goliath birdeater tarantula’s diet, there are a number of different prey options and supplements that you can use. Some popular choices include waxworms, grasshoppers, or pre-killed white mice from a pet store.

It is important to gut-load and dust feeders with calcium and other key micronutrients prior to feeding them to the spider. This helps to ensure that the prey items provide balanced nutrition and healthy immune systems, which are essential for the spider’s overall health and well-being.

Water and Hydration

Like all living creatures, Goliath birdeater tarantulas need access to fresh water in order to stay hydrated and healthy. Having a small water dish in the enclosure is good practice, as it allows the spider to lap up water as needed. However, these spiders can also obtain the moisture they need from food sources and humidity in their enclosure.

By providing your Goliath birdeater tarantula with a healthy and varied diet, and ensuring that it has access to fresh water and a suitable environment, you can help ensure that it thrives in captivity and remains a fascinating and awe-inspiring creature to observe.

Handling and Interaction

Goliath birdeater tarantulas are fascinating creatures that can be kept as pets. However, it is important to understand how to handle and interact with them in a safe and responsible manner.

When and How to Handle

As mentioned earlier, these tarantulas are not ideal pets for round-the-clock handling. They are not aggressive as such, but their sheer size can make them intimidating. It is important to remember that they are wild animals and should be treated with respect.

It is best to handle them only when necessary, such as during cleaning or relocation. When handling, it is important to be gentle and avoid sudden movements that can startle or stress them. It is also important to support their entire body, as they can be quite heavy.

Safety Precautions

Handling these spiders should be done with extreme caution. Gloves are recommended to protect your hands from their sharp fangs. They are also able to flick urticating hairs from their abdomens which can irritate the skin, eyes or mucous membranes. Prolonged exposure to these hairs can cause permanent damage to the afflicted area.

It is also important to have a secure and escape-proof enclosure for your tarantula. This will prevent them from escaping and potentially causing harm to themselves or others.

Signs of Stress and Aggression

If a Goliath Birdeater tarantula feels threatened or stressed, they will display certain behaviors such as raised front legs or abdominal movements in order to warn or scare away a potential predator. If you notice these signs, it is best to leave them alone and give them space to calm down.

It is also important to monitor their behavior and health on a regular basis. Any changes in their behavior, appetite or appearance could be a sign of illness or stress and should be addressed immediately.

In conclusion, handling and interacting with Goliath Birdeater tarantulas should be done with caution and respect. With proper care and attention, they can make fascinating and rewarding pets.

Health and Wellness

Common Health Issues

A common health issue with tarantulas is dehydration. Signs of dehydration include a lack of appetite, lethargy, and wrinkled or shriveled skin. It is important to note that dehydration can be fatal for tarantulas, so it’s crucial to keep them hydrated at all times. In addition to dehydration, tarantulas are also prone to fungal infections and mites, especially when kept in damp environments. These issues can be easily prevented by keeping their enclosure clean and dry, and avoiding overcrowding.

Another common health issue for tarantulas is injury. Tarantulas can injure themselves by falling, getting stuck in their enclosure, or getting into fights with other spiders. Signs of injury include missing limbs, difficulty moving, and bleeding. If you notice any of these signs, it’s important to seek veterinary care for your tarantula as soon as possible.

Preventative Care

To avoid health problems, it’s important to provide adequate heat, humidity, ventilation, and a balanced diet. Tarantulas require a warm and humid environment to thrive, so it’s important to maintain the proper temperature and humidity levels in their enclosure. A balanced diet for tarantulas includes a variety of insects, such as crickets, mealworms, and roaches. It’s important to avoid feeding your tarantula wild-caught insects, as they may carry parasites or diseases.

In addition to proper environmental conditions and diet, it’s also important to be prepared for emergencies. A well-equipped first aid kit containing bandages, powdered sugar, spray disinfectant, and fresh water should be on standby in case of injury or illness. It’s also a good idea to have a veterinarian who specializes in exotic pets on hand in case of serious health issues.

Molting Process and Growth

Goliath birdeater tarantulas undergo a molting process, whereby they shed their exoskeleton and grow a new one. Molting usually occurs once in a few years for adult spiders. During this time, tarantulas are vulnerable and should not be handled, fed or disturbed. It’s important to provide your tarantula with a safe and quiet environment during the molting process to minimize stress and prevent injury.

After molting, tarantulas may appear soft and vulnerable for a few days until their exoskeleton hardens. During this time, they may not be interested in eating, and it’s important to avoid handling them until they have fully recovered. Once they have hardened, they will be ready to resume their normal activities.

It’s important to monitor your tarantula’s growth and molting cycles to ensure that they are healthy and thriving. If you notice any abnormalities or changes in behavior, it’s important to seek veterinary care for your tarantula as soon as possible.

Breeding and Reproduction

Sexing Your Tarantula

Differentiating between male and female Goliath birdeater tarantulas can be done by certain characteristic features such as leg width, body size, and what is known as the tibial hook present in male specimens.

When it comes to sexing tarantulas, it is important to know that males and females can have vastly different appearances. Male tarantulas are generally smaller and more slender than their female counterparts. They also have longer, thinner legs and a smaller body size. Females, on the other hand, tend to be larger and more robust, with shorter, thicker legs and a wider body.

One of the most distinctive features of male tarantulas is the tibial hook, which is a small, hook-like structure located on the underside of their front legs. This structure is used during mating, as we will discuss below.

Mating Process

Once you have determined the sex of your tarantula, you may be interested in breeding them. Breeding tarantulas can be a rewarding and fascinating experience, but it is important to approach it with caution and care.

The mating process for tarantulas is initiated by the male, who will approach the female and begin tapping on her with his pedipalps. If the female is receptive, she will allow the male to approach and may even begin to drum her own legs in response.

The male will then insert his palpal bulb into the female’s reproductive opening, transferring sperm in the process. This act is often accompanied by the male using his tibial hook to hold the female’s fangs away from him, as she may attempt to cannibalize him during or after mating.

After a successful mating session, the female will produce an egg sac within a few weeks. This sac can contain anywhere from a few dozen to several hundred eggs, depending on the species.

Egg Sac Care and Hatchlings

Once the female has produced her egg sac, she will guard it fiercely until the hatchlings emerge. This can take anywhere from 6 to 8 weeks, depending on the species and environmental conditions.

During this time, it is important to provide the female with plenty of food and water, as she will be expending a lot of energy caring for her eggs. You may also want to provide her with a suitable nesting area, such as a small container filled with moist substrate.

Once the hatchlings emerge, they will be tiny and vulnerable. It is important to keep them separated from the adult tarantulas, as they may be cannibalized if left together. You should also provide them with a suitable enclosure and diet, as they will need to grow and mature before they can be sold or traded to other enthusiasts.

Overall, breeding and caring for tarantulas can be a fascinating and rewarding hobby for those who are interested in these fascinating creatures. With the right knowledge and care, you can help to ensure the health and well-being of your tarantulas and their offspring.

Conservation and Ethical Considerations

The Goliath birdeater tarantula, also known as Theraphosa blondi, is the largest spider in the world, with a leg span of up to 12 inches. Despite their impressive size and unique characteristics, this species faces numerous threats and challenges that require attention and action from the public.

Threats to the Species

One of the most significant threats to the Goliath birdeater tarantula is the demand for them as pets. Many people are fascinated by these creatures and seek to own them as exotic pets, leading to a decline in their population in the wild. In addition to pet ownership, habitat destruction and deforestation also contribute to the decline of this species. These factors make it important to consider the impact of human activities on the environment and the species that call it home.

Furthermore, the Goliath birdeater tarantula is often misunderstood and feared, leading to unnecessary killing and persecution. Education and awareness programs are essential to help people understand the importance of this species and its role in the ecosystem.

Responsible Pet Ownership

If you are interested in owning a Goliath birdeater tarantula, it is crucial to ensure that you are a responsible pet owner. This means purchasing your spider from an authorized dealer and ensuring that they are captive-bred babies. By doing so, you can help reduce the demand for wild-caught spiders and support conservation and breeding programs in captivity.

It is also important to provide proper care and housing for your spider. Goliath birdeater tarantulas require a large, secure enclosure with appropriate substrate, hiding places, and temperature and humidity levels. They also require a diet of live prey, such as crickets and roaches.

Supporting Conservation Efforts

There are several ways that you can support conservation efforts for the Goliath birdeater tarantula. One way is to contribute to wildlife organizations and zoos that promote the preservation of this species. These organizations work to protect the habitats of the Goliath birdeater tarantula and other endangered species, as well as support breeding programs in captivity.

Another way to support conservation efforts is to participate in citizen science programs that monitor and study the Goliath birdeater tarantula population. These programs allow individuals to contribute to scientific research and conservation efforts from their own homes or communities.

In conclusion, the Goliath birdeater tarantula is a fascinating and unique species that faces numerous threats and challenges. By being responsible pet owners and supporting conservation efforts, we can help ensure the survival of this species for generations to come.


In conclusion, the Goliath birdeater tarantula is a fascinating species that can make for a unique and rewarding pet experience. By providing the appropriate care, diet, and shelter, you can ensure that your tarantula thrives and lives a long and healthy life. Always remember that responsible pet ownership is key to the continuation of the species, both in captivity and in the wild.

Share This Post

On Key

Related Posts