Breeding tarantulas can be a rewarding experience for any arachnid enthusiast. One of the most crucial elements in successful tarantula breeding is the right setup, particularly the enclosure used for the process. The Exo Terra breeding box is a popular choice among breeders due to its design, which is conducive to maintaining a suitable environment for these fascinating creatures. This guide will walk you through how to effectively use an Exo Terra breeding box for your tarantula, covering everything from choosing the right size to caring for the spiderlings, ensuring a higher chance of successful breeding and the arrival of healthy offspring. Remember, patience and attention to detail are key when breeding tarantulas.
Choosing the Right Exo Terra Breeding Box
Selecting the appropriate Exo Terra breeding box is the first step toward successful tarantula breeding. While Exo Terra offers a variety of terrariums, choosing one specifically designed or modified for breeding purposes is essential. Look for a box that provides adequate space for the tarantula to move around comfortably without being too large, as this can make it difficult for the tarantula to find a mate. The box should also be easy to clean and maintain, which is critical for hygiene and the prevention of diseases. Consider the species of tarantula you are breeding, as some species require more space or specific environmental conditions. A well-chosen breeding box will contribute significantly to the overall success of your breeding efforts.
Size Matters for Tarantulas
The size of the Exo Terra breeding box plays a pivotal role in the breeding process. A box that is too small can stress the tarantula, potentially hindering mating behavior. Conversely, a box that is excessively large may make it difficult for the male to locate the female, or the female may be less receptive. The ideal size will depend on the tarantula species and the size of the individuals involved. As a general rule, ensure that the box provides ample space for the tarantulas to move around freely, with enough room for the male to approach the female and for the female to retreat if necessary. Careful consideration of the size will help to create a less stressful environment, increasing the likelihood of a successful mating and breeding process.
Ventilation is Key for Success

Proper ventilation within the Exo Terra breeding box is vital for maintaining the health and well-being of your tarantulas. Adequate airflow helps to regulate humidity levels, prevent the buildup of harmful gases, and reduce the risk of mold and bacterial growth, which can be detrimental to both adults and developing spiderlings. When setting up the breeding box, make sure to include ventilation features, such as mesh tops or strategically placed air vents. These features should allow for sufficient air circulation without compromising the security of the enclosure. Regularly check the ventilation to ensure it remains unobstructed and effective in providing a clean and healthy environment for your tarantulas. Good ventilation is fundamental to long-term health and reproductive success.
Substrate Selection for Breeding
The choice of substrate in your Exo Terra breeding box is more than just aesthetic; it’s fundamental to providing a safe and comfortable environment for your tarantulas, particularly during the breeding process. The substrate should mimic the natural habitat of your tarantula species. This helps to regulate humidity and temperature, which is critical for molting, egg-laying, and the overall health of your tarantulas. Choose a substrate that is absorbent, non-toxic, and free from harmful chemicals. Avoid substrates that can easily harbor mold or mites. Proper substrate selection contributes significantly to the success of your breeding efforts.
Ideal Substrate Types for Tarantulas
Several substrate options are ideal for tarantula breeding, each with unique properties that cater to different species and environmental needs. For many terrestrial tarantulas, a mix of coco fiber, peat moss, and a bit of vermiculite works well, providing excellent moisture retention and burrowing capabilities. These materials help to create a humid environment, mimicking the conditions found in their natural habitats. For arboreal species, a substrate that retains some moisture while offering good ventilation, such as a mix of sphagnum moss and eco-earth, may be more suitable. Regardless of the substrate type, regular monitoring and maintenance are crucial to ensure it remains clean, and mold-free, and provides the right environment for your tarantulas to thrive.
Setting Up the Breeding Environment

Creating the optimal environment within the Exo Terra breeding box is crucial for encouraging successful breeding behavior in tarantulas. This involves careful consideration of several factors including temperature, humidity, and the provision of hiding places. These elements must mimic the natural habitat of your tarantula species to reduce stress and stimulate mating behavior. Make sure to maintain a stable environment to increase the chances of successful breeding and egg-laying. Careful setup provides the necessary comfort and security to initiate the breeding process effectively.
Temperature and Humidity Control
Controlling temperature and humidity are essential for a successful tarantula breeding environment. Most tarantulas thrive in a temperature range of 75°F to 85°F (24°C to 29°C). Use a reliable thermometer to monitor the temperature within the Exo Terra breeding box. Humidity requirements vary by species; however, a good starting point is to maintain humidity levels between 60% and 80%. Monitor humidity using a hygrometer. Use a combination of the right substrate, regular misting with dechlorinated water, and proper ventilation to achieve and maintain the desired humidity levels. Stable temperature and humidity are critical for simulating the environmental conditions that trigger breeding behavior.
Creating Hiding Places
Providing adequate hiding places within the Exo Terra breeding box is essential for tarantulas, particularly during the breeding process. Hiding places offer security and reduce stress, allowing the tarantulas to feel safe and secure. These can be provided using various items, such as cork bark, artificial plants, or commercially available hides. Arrange the hiding places strategically, making sure there are multiple options available. Consider the natural behavior of your tarantula species when selecting and placing these hiding spots. Well-placed hides contribute significantly to a less stressful environment, which can improve the chances of successful mating and egg production.
Introducing the Tarantulas

Carefully introducing the male and female tarantula into the Exo Terra breeding box requires careful planning and observation. Introduce the male tarantula into the female’s enclosure, or vice versa, depending on your experience and the temperament of the species. Always supervise the initial introduction. Observe the tarantulas closely for signs of aggression or receptiveness. Be prepared to intervene if the female shows aggression towards the male, as this can result in injury or death. If the female appears receptive, the male will typically approach the female and begin displaying mating behaviors. Close supervision and prompt intervention when necessary are vital to prevent any harm and to facilitate a successful breeding encounter.
Observation and Monitoring
Constant observation and monitoring are essential throughout the tarantula breeding process. Carefully observe the tarantulas for signs of mating behavior, such as drumming by the male, receptiveness by the female, and the actual mating process. Document any significant events, behaviors, and environmental changes. Look for any signs of stress, illness, or unusual behavior in either the male or female. Regular monitoring allows you to make any necessary adjustments to the environment and provides valuable insight into the breeding dynamics of your tarantulas. Detailed records of all observations will also aid in successful breeding and any potential future attempts.
Recognizing Mating Behavior
Understanding the mating behavior of tarantulas is crucial for determining whether breeding has been successful. The male tarantula will typically drum on the ground or substrate, which serves as a signal to the female. If the female is receptive, she will often respond in kind. The male will then approach the female, and if the female is willing, he will insert his palps (specialized appendages) into her epigastric furrow to transfer sperm. The entire process, from drumming to sperm transfer, can vary in duration, and careful observation is important to recognize the subtle cues that indicate a successful mating. Recognizing these behaviors is critical for confirming that mating has occurred.
Separation of the Tarantulas

Following the mating process, it’s generally advisable to separate the male and female tarantulas. The timing of this separation depends on the species and individual behaviors observed. In many cases, the male may be in danger of being preyed upon by the female immediately after mating, and in other instances, the female may become more aggressive over time. Carefully monitor the female’s behavior, looking for signs of increased aggression. Remove the male from the Exo Terra breeding box as soon as the mating is complete or when aggression is observed. Safe separation helps to ensure the survival of both tarantulas and minimizes stress. You can move the male back to its enclosure. This separation safeguards both tarantulas post-mating.
Post-Mating Care and Considerations
After mating, post-mating care focuses on ensuring the female’s health and preparing for the possibility of an egg sac. Continue to provide her with a balanced diet of appropriately sized insects and maintain the correct environmental conditions. Monitor her behavior for signs of egg sac production, such as increased webbing and a change in her feeding habits. Observe the female for any health issues or abnormalities. Regular monitoring and proper care provide the conditions for egg sac production and contribute to the health of both the mother and any potential offspring. This is the critical phase to a successful breeding outcome.
Egg Sac Management
If the female produces an egg sac, proper management of the sac is essential for the survival of the eggs. The female tarantula will typically care for the egg sac, but in some cases, breeders will choose to remove the sac for incubation. If you decide to leave the egg sac with the female, make sure the enclosure conditions remain optimal for egg development. If you choose to remove the egg sac, place it in an incubator or a specially designed container that maintains the proper temperature and humidity levels. Careful handling and monitoring are vital throughout the incubation period. The management of the egg sac is crucial for maximizing the number of healthy spiderlings.
Caring for Spiderlings

Once the spiderlings hatch, providing them with the correct care is vital for their growth and survival. Spiderlings are very small and require tiny prey items, such as flightless fruit flies or pinhead crickets. Provide them with appropriate ventilation and humidity. Keep the spiderlings in small, individual enclosures or in groups if you can provide enough space and food. Regularly monitor the spiderlings for feeding, molting, and any signs of illness. Provide fresh water. Proper care during the spiderling phase is critical for ensuring the development of healthy, thriving tarantulas. The spiderlings need the correct diet and a safe environment to flourish.
Breeding tarantulas using an Exo Terra breeding box is a detailed process. By following these guidelines, you can create an optimal environment and increase the chances of success. Remember that patience and a deep understanding of tarantula behavior are the keys to a successful breeding program. With dedication and a keen eye, you can successfully breed these fascinating creatures.
