Understanding Tarantula Breeding
Breeding tarantulas is a rewarding and complex endeavor, demanding a thorough understanding of their unique biology and behaviors. Success requires careful planning, meticulous execution, and a deep commitment to the welfare of both the adult tarantulas and their offspring. This comprehensive guide provides a detailed overview of the key steps involved in successful tarantula breeding, from species selection and environmental control to the intricacies of the mating process and the proper care of spiderlings. Careful research and preparation are crucial to increasing your chances of a successful breeding attempt and ensuring the long-term health and well-being of your tarantulas. Think of this as your tarantula breeding book, a resource to guide you through the exciting journey of tarantula reproduction.
Tarantula Species Selection
The selection of the appropriate tarantula species is the cornerstone of any successful breeding attempt. Not all species are equally suitable for breeding, and some present significantly greater challenges than others. Carefully consider factors such as the species’ temperament, its availability in the hobby, and the relative ease of its care requirements. Beginners are often advised to start with more docile and readily available species, such as the Chilean Rose Hair (Grammostola rosea) or the Mexican Red Knee (Brachypelma hamorii). These species generally offer a more predictable breeding experience. Before making your selection, thoroughly research the specific needs and behaviors of your chosen species, including its native habitat, dietary requirements, and typical breeding patterns. This detailed knowledge is essential to creating an environment that encourages successful breeding and the well-being of your tarantulas. A good tarantula breeding book will always stress the importance of this step.
Choosing Healthy Tarantulas

Selecting healthy tarantulas is absolutely critical for a successful breeding venture. Healthy specimens are far more likely to mate successfully and produce viable offspring. Thoroughly examine the tarantulas for any signs of illness or injury. Look for a plump abdomen, indicating a well-fed and hydrated tarantula. Carefully check for any missing legs or other physical deformities. Ensure that the tarantulas exhibit active behavior and a healthy appetite. They should be alert and responsive to stimuli. If possible, observe the tarantulas in their enclosures for several days or even weeks before attempting to breed them to assess their overall health and behavior. Purchasing from a reputable breeder or dealer significantly increases your chances of acquiring healthy specimens. This is a crucial aspect that every tarantula breeding book emphasizes.
Determining the Sex of Your Tarantulas
Accurately determining the sex of your tarantulas is essential for successful breeding efforts. The most reliable method for sexing tarantulas is to examine their molted exoskeletons. After a molt, the shed exoskeleton reveals the tarantula’s sex organs. In mature females, the presence of a spermatheca (a structure used to store sperm) is readily visible. Males possess a pair of modified pedipalps (the small appendages near their mouth) that resemble boxing gloves, which they utilize to transfer sperm during the mating process. Additionally, mature males will have tibial hooks located on their front legs. However, some tarantula species can be challenging to sex, especially at younger ages. In these situations, relying on the expertise of experienced breeders or using more advanced techniques, such as genetic testing (though less common in the hobby), may be necessary. Proper sexing is a fundamental topic that every tarantula breeding book will cover.
Preparing Tarantulas for Mating
Preparing your tarantulas for mating involves creating the ideal environment and ensuring they are in peak breeding condition. This crucial preparation includes providing the correct temperature and humidity levels, a balanced and nutritious diet, and a stress-free environment. The success of mating often hinges directly on the overall health and well-being of the tarantulas. This preparation phase can span several weeks or even months, depending on the specific species and its individual needs. A well-prepared environment closely mimics the tarantula’s natural habitat and effectively stimulates breeding behaviors. Patience and meticulous attention to detail are paramount during this phase, as rushing the process can easily lead to unsuccessful outcomes. A good tarantula breeding book will guide you through these essential preparation steps.
Creating the Ideal Environment

The environment plays a pivotal role in stimulating breeding behaviors in tarantulas. Replicating the natural habitat of the species is of utmost importance. This involves precise control of temperature, humidity, and the availability of food and water. The enclosure should be appropriately sized for the tarantulas, offering ample space with numerous hiding places and suitable substrate for burrowing or creating a comfortable environment. Maintaining a consistently stable environment minimizes stress and actively promotes optimal health. Regular and thorough cleaning of the enclosure, along with the prompt removal of any uneaten food, is essential to prevent the buildup of harmful bacteria and parasites. Carefully considering the tarantula’s native environment is crucial, as it will greatly influence the ideal environmental settings required for successful breeding. This is a central theme discussed in any comprehensive tarantula breeding book.
Temperature and Humidity Control
Precisely controlling temperature and humidity are critical factors that directly influence breeding success. Different tarantula species have varying requirements for temperature and humidity, so meticulous research into the specific needs of your chosen species is absolutely essential. Generally, most tarantulas thrive in temperatures ranging from 75-85°F (24-29°C). Use a reliable thermometer to constantly monitor the temperature within the enclosure. Humidity levels also vary considerably depending on the species, ranging from relatively low humidity for desert species to high humidity for tropical rainforest species. Using a hygrometer to accurately measure humidity is crucial, and adjustments must be made as necessary. Regular misting of the enclosure with water or providing a shallow water dish can help maintain appropriate humidity levels. Ensuring that the enclosure has adequate ventilation to prevent the growth of mold and mildew is equally important. Managing these environmental factors effectively is key to successful tarantula breeding, as emphasized in any reputable tarantula breeding book.
Feeding and Hydration
Proper nutrition is undeniably critical for breeding tarantulas. A well-nourished female is far more likely to produce a healthy egg sac and viable offspring. Provide a varied and nutritious diet consisting of appropriately sized insects, such as crickets, roaches, or mealworms. The frequency of feeding depends on the specific species, as well as the tarantula’s age and size. Juvenile tarantulas typically require more frequent feedings than adults. Ensure that the tarantula always has access to fresh, clean water. Provide a shallow water dish or mist the enclosure regularly, depending on the species’ needs. Avoid overfeeding, as this can potentially lead to obesity and other health problems. Prior to introducing the tarantulas for mating, be sure the female is exceptionally well-fed to properly prepare her for the energy-intensive process of egg production and incubation. Following the dietary advice in a good tarantula breeding book is highly recommended.
The Mating Process

The mating process represents a delicate dance that requires careful observation and skillful management. It’s a potentially risky undertaking for the male tarantula, as females are known to occasionally cannibalize their mates. Careful preparation and a comprehensive understanding of the species’ mating behavior are vital to significantly increasing the chances of a successful mating attempt. The exact process can vary somewhat between different species, but certain general principles always apply. The primary objective is to facilitate the safe and efficient transfer of sperm from the male to the female. A good tarantula breeding book will always offer practical advice in this area.
Introducing Tarantulas
The introduction of the male tarantula to the female’s enclosure should be undertaken with great care and strategic planning. Place the female in her enclosure first, and only then introduce the male. This should be done under close and constant supervision. Meticulously monitor their behavior, paying careful attention for any signs of aggression from the female. Some male tarantulas are naturally more cautious and may approach the female slowly, while others may drum on the substrate, attempting to signal their intentions. Provide a safe escape route for the male, such as a readily accessible burrow or a hiding place, just in case. If the female is receptive, she will allow the male to approach. The male will then utilize his pedipalps to insert sperm into the female’s epigastric furrow. Knowing how to manage this step is vital and a core topic of every tarantula breeding book.
Observation and Intervention
Close and constant observation during the entire mating process is absolutely critical. Monitor the tarantulas closely for any signs of aggression or distress. If the female attacks the male, immediate and decisive intervention is essential to separate them. The mating process itself can last anywhere from a few short minutes to several hours. After the mating is successfully completed, the male should be carefully removed from the female’s enclosure to prevent him from being eaten. Watch carefully for any changes in the female’s behavior, as some females can become aggressive immediately after mating. Provide the female with an abundant supply of food and water following mating, as she will require ample resources to replenish her energy reserves. Thoroughly documenting the entire process, including the specific dates and times of mating, can be incredibly helpful for future breeding attempts. Consult your tarantula breeding book for further guidance on observation and intervention.
Post-Mating Care

Following a successful mating, providing the female tarantula with appropriate care is paramount for her health and the successful development of the egg sac. This involves continuous monitoring of her physical condition, providing her with adequate and nutritious food, and maintaining the optimal environment for egg sac production. This post-mating period is also a crucial time to observe the female’s behavior and to carefully prepare for the eventual arrival of the spiderlings. Understanding the specific needs of the female tarantula during this critical period is fundamental to achieving a successful breeding outcome. This is a critical topic that any useful tarantula breeding book should cover.
Caring for the Female
After the mating has been completed, continue to provide the female with a consistent supply of food and water. Her appetite may increase significantly as she begins to develop the egg sac. Ensure that the enclosure maintains the appropriate temperature and humidity levels, which should remain consistent. Minimize any disruptions or stressors, as these factors could negatively impact the development of the egg sac. Observe the female’s behavior carefully, paying attention to any unusual changes, such as a decrease in appetite or noticeable lethargy. Monitor her abdomen closely for any signs of swelling, as this indicates the development of the egg sac. The female will typically seal herself away within a burrow or a secluded area within her enclosure as she prepares to lay her eggs. Ensure that this area remains undisturbed and completely free from any potential threats. The female’s behavior is a critical indicator, and every tarantula breeding book will help you understand it.
Egg Sac Management
The female tarantula will typically lay her eggs within a silk egg sac, which she meticulously constructs and carefully protects. Once the egg sac has been produced, the female may or may not choose to tend to it. Some tarantula species are very attentive mothers, while others may exhibit less maternal behavior, essentially ignoring the egg sac. You have the option of either leaving the egg sac with the mother or removing it to incubate it artificially. If you decide to leave the egg sac with the mother, continuous monitoring of the enclosure is essential to ensure a stable and appropriate environment. If you choose to remove the egg sac, carefully remove it from the enclosure and place it in a controlled incubator that maintains the specific temperature and humidity levels required for the species. The incubation period can vary significantly depending on the specific tarantula species and the environmental conditions. Regular monitoring and careful management of the egg sac are absolutely essential for successful egg sac development. Consulting your tarantula breeding book for detailed instructions is highly recommended.
Raising Spiderlings

Raising spiderlings represents a delicate and time-consuming process that demands both patience and meticulous attention to detail. Spiderlings are remarkably vulnerable and require specialized care to thrive. From setting up their individual enclosures to providing precisely the correct type and size of food, every single step is crucial for their survival and healthy development. This is the final stage of the breeding process, and the ultimate goal is to successfully rear the spiderlings to adulthood. Careful observation, meticulous care, and an unwavering commitment to providing the proper environment are the key ingredients for success.
Setting Up the Spiderling Enclosure
Once the spiderlings have hatched, setting up an appropriate enclosure for them is essential. Spiderlings are typically kept in individual enclosures to prevent cannibalism. The enclosure should be small and appropriately sized, featuring a shallow layer of substrate, a tiny water dish, and a secure hide. Providing a slightly humid environment is also necessary to keep the spiderlings properly hydrated. Ensure that the enclosure is well-ventilated to prevent the build-up of mold and mildew. The size of the enclosure can vary depending on the specific species and the size of the spiderlings. Use small deli cups or vials for the smallest spiderlings and gradually transition them to larger enclosures as they grow. Regular cleaning of the enclosures is crucial to maintaining a healthy and hygienic environment. Understanding how to set up the enclosures is a fundamental part that you can learn from any quality tarantula breeding book.
Feeding Spiderlings
Feeding spiderlings requires a specialized and nuanced approach. Spiderlings possess tiny mouths and necessitate the provision of very small food items, such as flightless fruit flies or pinhead crickets. Feed the spiderlings every other day or as needed, and observe their behavior to determine whether they are feeding well. Remove any uneaten food within 24 hours to prevent the development of mold and mildew. Ensure that the spiderlings have consistent access to fresh, clean water. Use a small water dish or mist the enclosure regularly, depending on the species’ needs. As the spiderlings mature and grow, you can gradually increase the size of their food items. Meticulously monitor their molting cycles, as this is a critical period for their growth and overall development. Adjust the feeding schedule accordingly, providing slightly more food in the period preceding a molt. The first few molts are particularly vulnerable, and providing the right environment will significantly improve the spiderlings’ survival. This is one of the most important elements of tarantula breeding, and you can learn all about it from your tarantula breeding book.
Common Breeding Challenges

Breeding tarantulas can present a range of potential challenges, and it’s important to be thoroughly prepared for them. Understanding these potential problems and knowing how to proactively address them can significantly increase your chances of a successful breeding outcome. Some challenges are more common than others, and having a solid understanding of tarantula behavior and biology will help you navigate these issues effectively.
Failure to Mate
Failure to mate is a relatively common challenge in tarantula breeding. This can be due to a multitude of factors, including the tarantulas’ age, overall health, and the environmental conditions. Ensure that the tarantulas are sexually mature and in optimal health. The environment should be completely conducive to mating. Provide the appropriate temperature and humidity levels, and minimize any stress. Sometimes, the female simply isn’t receptive to the male at a given time. Try introducing the male at different times or under different environmental conditions. If the initial mating attempt fails, try again at a later date. Patience is often essential, and success may not come on the first attempt. Document all attempts and observations diligently, as this provides invaluable information for future breeding attempts.
Female Aggression
Female aggression is another common challenge that can occur. Some female tarantulas are prone to attacking and even consuming the male either during or immediately after the mating process. Therefore, it’s critical to monitor the mating process very closely and be fully prepared to intervene if the female displays any signs of aggression. Provide a safe escape route for the male, such as a readily accessible burrow or a secure hiding place. If the female attacks the male, separate them immediately to prevent injury or death. If the male is injured, seek appropriate veterinary care. Some breeders utilize specific techniques to distract the female during mating. For example, feeding the female right before the introduction of the male can sometimes decrease her aggression. The use of a “mating hook” has also been tried, but it is an advanced technique requiring significant experience. This is a vital topic that every tarantula breeding book will cover with considerable detail, as it’s a significant risk.
