What is Shedding for Mexican Red Knees
Shedding, or molting, is a fundamental biological process for all arthropods, including the captivating Mexican Red Knee tarantula. It’s essentially the way these creatures grow and replace their rigid exoskeleton, the hard outer shell that protects their bodies. This process allows them to increase in size, heal injuries, and get rid of parasites. Shedding is not just about size; it’s about renewing their exterior, ensuring they remain healthy and vibrant. Understanding this process is key to providing the right care for your Mexican Red Knee, ensuring their well-being throughout their lives.
The Shedding Process Explained
The shedding process is a remarkable transformation, a delicate dance of nature. Before shedding, the tarantula will start forming a new, soft exoskeleton beneath the old one. The old exoskeleton then separates from the new one, and the tarantula will then inflate its body, causing the old shell to split open, usually along the carapace or abdomen. The tarantula then wriggles out of its old skin, leaving behind a perfect, albeit empty, replica of itself. This is when they are most vulnerable, and the duration can be from minutes to several hours, depending on the tarantula’s size and environment. This fascinating process highlights the resilience and adaptability of these creatures.
Pre-Shedding Signs

Recognizing the signs of an impending shed is crucial for providing the best care. The Mexican Red Knee will exhibit several telltale behaviors before it starts. Observing these changes will allow you to anticipate and prepare for this transformative period.
Changes in Appearance
The most obvious sign is a change in color. The tarantula’s vibrant colors may appear dull or faded. Also, the abdomen may look darker or appear stretched and shiny. This is the new exoskeleton forming underneath. You might also notice bald spots on the abdomen, indicating the old hairs are loosening in preparation for the shed.
Changes in Behavior
The tarantula’s behavior will also change. They often become less active, retreating to their hide. They may also stop eating, which is a good indication they’re preparing to shed. Sometimes, they might seal themselves in their burrow or create a webbing barrier. This behavior is normal and shows they are preparing for the vulnerable shed process.
Preparing for Shedding

Preparing the environment for shedding is essential for a successful molt. Ensuring the correct conditions minimizes stress and maximizes the chances of a healthy shed. This involves adjusting humidity and providing a safe space.
Increasing Humidity
Adequate humidity is vital to a smooth shed. Use a hygrometer to monitor humidity levels, ideally between 65-75%. You can increase humidity by misting the enclosure with dechlorinated water or adding a water dish. Ensure the substrate isn’t too wet to prevent mold. The right level of humidity helps the old exoskeleton separate and allows the tarantula to emerge more easily.
Providing a Safe Space
A safe, undisturbed environment is crucial. Avoid handling the tarantula or disturbing its enclosure during the pre-shedding period. Provide a hide or a secure area where the tarantula can retreat and feel safe. Minimize vibrations and noise. This will reduce stress and allow the tarantula to focus on the shedding process. A calm environment contributes greatly to a successful molt.
The Shedding Event

Witnessing your Mexican Red Knee shed can be an exciting, though sometimes nerve-wracking, experience. Knowing what to expect during this process can ease your concerns and help you to provide the best care.
What to Expect During Shedding
The tarantula will typically lie on its back. The old exoskeleton will split open, and the tarantula will slowly wriggle out. This can take anywhere from a few minutes to a couple of hours. It’s crucial not to interfere during this process. The tarantula is extremely vulnerable during this time. Once the shed is complete, the tarantula will appear pale and soft.
How Long Does Shedding Take
The duration of the shedding process varies based on the tarantula’s size, age, and environmental factors. Smaller tarantulas may shed within an hour, while larger, older ones might take several hours. Providing a stable environment is key for a swift molt. Do not disturb the tarantula during this time. Once the process is complete, allow your tarantula time to harden and regain its strength.
Post-Shedding Care

After shedding, the Mexican Red Knee is in a delicate state. It is essential to provide proper care during the post-shedding phase to facilitate recovery and ensure its well-being. This involves handling the shed, and paying attention to its feeding habits.
Removing the Exoskeleton
Once the tarantula has fully hardened, you can remove the shed exoskeleton from the enclosure. This is an important step to maintain hygiene and prevent the growth of mold or bacteria. You can use tongs or tweezers to carefully remove the shed. Inspect the shed for any missing legs or abnormalities, which might indicate a problem during the shedding process. Dispose of the shed appropriately.
Feeding Your Tarantula
Wait at least a week after the shed before offering food. The new exoskeleton needs time to harden. Start with smaller prey items, such as a couple of small crickets or mealworms. Observe the tarantula to see if it’s interested in eating. If it doesn’t eat, wait a few more days and try again. Overfeeding at this stage can cause the tarantula to become bloated, so provide small amounts of food at first.
Handling Your Tarantula

Avoid handling your tarantula for at least a week after shedding. The new exoskeleton is still soft and vulnerable to damage. Handling during this period can cause injury or stress. Give your tarantula time to fully acclimate and regain its strength. Observe its behavior to make sure it is back to normal before considering handling.
Common Shedding Problems and Solutions
While shedding is a natural process, occasionally, problems can arise. Being aware of these potential issues can help you provide the necessary support and ensure your tarantula’s safety.
Dystocia Shedding Problems
Dystocia is a term for a difficult shed. This can happen if the tarantula is too dry, has underlying health issues, or if the environment is not right. Signs include being stuck partially in the old exoskeleton. Providing appropriate humidity, a safe environment, and ensuring the tarantula is healthy can prevent dystocia. If your tarantula has problems shedding, seek advice from an experienced keeper or a vet familiar with tarantulas.
Partial Shedding

Sometimes, a tarantula might only shed part of its exoskeleton. This often happens around the legs and fangs. This is common and usually not a cause for immediate concern. However, it can potentially lead to problems. Make sure humidity and water availability is correct. A partial shed is usually rectified at the next molt.
Dehydration Issues
Dehydration can cause a tarantula to struggle during shedding. The old exoskeleton might not separate properly. Provide a water dish and mist the enclosure regularly to maintain proper humidity. Dehydration can be a contributing factor in other shedding problems, such as dystocia. Monitoring your tarantula’s water intake and the enclosure’s humidity is key to preventing shedding issues.
