Cobalt Blue Tarantula Overview
The Cobalt Blue Tarantula (Cyaneopubescens) is a striking and captivating species, popular among arachnid enthusiasts. Known for their vibrant blue legs and metallic coloration, they are a visually stunning addition to any collection. However, while their beauty is undeniable, it’s crucial to understand their specific care requirements to ensure their health and well-being. This comprehensive guide provides essential information for beginners, covering everything from habitat setup and feeding to handling and health, helping you provide the best possible care for your Cobalt Blue Tarantula.
What is a Cobalt Blue Tarantula
Cobalt Blue Tarantulas are arboreal tarantulas native to the tropical forests of Myanmar and Thailand. They are known for their fast growth rate and impressive size, with females reaching up to 6 inches in leg span. Their striking coloration makes them highly sought after, but their temperament can be unpredictable, making proper handling and care paramount for both the tarantula and the keeper. Understanding their natural environment and behaviors is key to creating a suitable habitat.
Appearance and Characteristics

The Cobalt Blue Tarantula gets its name from the vibrant blue coloration of its legs, contrasted by a metallic blue or black body. Juveniles often exhibit a more subdued color, with the blue becoming more intense as they mature. These tarantulas are fast growers, reaching their adult size within a few years. They possess urticating hairs on their abdomen, which they can flick as a defense mechanism. They also have potent venom, which is not usually life-threatening to humans, but can cause significant pain and discomfort.
Cobalt Blue Tarantula Habitat
Creating the right habitat is crucial for the health and happiness of your Cobalt Blue Tarantula. Their enclosure should mimic their natural environment, providing appropriate temperature, humidity, and space to thrive. A well-designed habitat minimizes stress and promotes healthy growth, allowing you to enjoy observing these fascinating creatures. Remember to always prioritize the tarantula’s well-being when setting up its home.
Enclosure Setup
For an adult Cobalt Blue Tarantula, a 10-gallon terrarium or a similarly sized enclosure is generally adequate. The enclosure should be taller than it is wide, as these tarantulas are arboreal. Secure lids are essential to prevent escapes. Ventilation is also important to prevent the buildup of mold and maintain proper humidity levels. Ensure the enclosure is escape-proof and has adequate ventilation to keep your tarantula healthy and secure.
Substrate and Decorations

The substrate should be several inches deep to allow the tarantula to burrow if it chooses. A mix of peat moss, vermiculite, and coconut fiber is ideal for retaining moisture and providing a natural environment. Decorations should include a piece of cork bark or a similar structure for the tarantula to hide under and climb on. Avoid sharp objects that could injure the tarantula. Providing a secure hideout will reduce stress and make your tarantula feel safe.
Temperature and Humidity
Cobalt Blue Tarantulas thrive in temperatures between 75-85°F (24-29°C). Use a heat source, such as a low-wattage heat lamp or a heat mat, to maintain the desired temperature. The humidity level should be around 70-80%. Regular misting with dechlorinated water and a shallow water dish will help maintain the correct humidity. A hygrometer is recommended to monitor humidity levels. Make sure to monitor the conditions to ensure your tarantula’s comfort and health.
Cobalt Blue Tarantula Feeding
Proper feeding is fundamental to the health and longevity of your Cobalt Blue Tarantula. Providing the right food, in the correct amounts, ensures they receive the necessary nutrients for growth and well-being. Overfeeding can lead to health problems, while underfeeding can stunt development. Careful attention to their dietary needs ensures your tarantula thrives.
Diet and Feeding Frequency

Cobalt Blue Tarantulas are primarily insectivores. Feed them a varied diet of insects such as crickets, roaches, mealworms, and superworms. The size of the prey should be appropriate for the tarantula’s size, generally no larger than the tarantula’s body. Feed juveniles 2-3 times per week, and adults once a week or every other week, depending on their appetite and size. Remove any uneaten food within 24 hours to prevent mold and mites.
Watering Your Tarantula
Provide a shallow water dish with fresh, clean water at all times. The water should be dechlorinated. The water dish should be shallow to prevent the tarantula from drowning. Regular misting of the enclosure can also provide hydration, especially for younger tarantulas. Ensuring access to clean water is critical for the tarantula’s health.
Cobalt Blue Tarantula Handling and Safety
While the Cobalt Blue Tarantula’s striking appearance makes it tempting to handle, it’s crucial to prioritize your safety and the tarantula’s well-being. Handling can be stressful for the tarantula and increase the risk of bites. Understanding their behavior and implementing proper safety precautions are essential for a positive experience.
Handling Guidelines

Cobalt Blue Tarantulas are generally not recommended for handling, especially for beginners, due to their skittish nature and potent venom. If handling is unavoidable, do so with extreme caution, preferably while the tarantula is on a flat surface close to the ground. Avoid sudden movements and be aware of the tarantula’s body language. If the tarantula shows signs of stress, such as raising its front legs or flicking urticating hairs, it’s best to cease handling immediately. Always wash your hands before and after handling.
Safety Precautions
Always wash your hands before and after handling or interacting with the tarantula or its enclosure. Keep the enclosure securely closed to prevent escapes. Be aware of the tarantula’s urticating hairs, which can cause skin irritation. Avoid contact with the tarantula’s fangs, as their bite can be painful. In case of a bite, seek medical attention if symptoms persist. Teach children about the importance of respecting the tarantula and its space.
Cobalt Blue Tarantula Health and Common Issues
Maintaining a healthy environment is paramount to preventing illness in your Cobalt Blue Tarantula. Regular monitoring of the enclosure and the tarantula’s behavior can help identify potential health issues early on. Recognizing common problems and knowing how to address them is crucial for responsible pet ownership.
Recognizing Health Problems

Look for signs of illness, such as lethargy, loss of appetite, or changes in behavior. Check for any signs of mites or parasites. Examine the tarantula’s body for injuries or unusual swelling. A tarantula that appears weak or unable to move properly may be suffering from a health issue. If you notice anything unusual, consult with an experienced tarantula keeper or a veterinarian familiar with exotic animals.
Preventative Care
Maintaining the correct temperature, humidity, and cleanliness of the enclosure are essential preventative measures. Provide a varied diet and avoid overfeeding. Regularly remove uneaten food and clean the enclosure to prevent the buildup of bacteria or mold. Quarantine new tarantulas for a period before introducing them to existing ones. Proper preventative care helps ensure the tarantula remains healthy and thrives.
Cobalt Blue Tarantula Breeding and Lifespan
Understanding the lifecycle of your Cobalt Blue Tarantula, including its lifespan and breeding behavior, can enrich your experience as a keeper. While breeding is not typically undertaken by beginners, knowing the basics helps in appreciating these fascinating creatures.
Lifespan of Cobalt Blue Tarantulas

Female Cobalt Blue Tarantulas can live for 12-15 years or even longer, while males typically have a shorter lifespan, around 3-5 years. The lifespan can be influenced by factors such as diet, environment, and overall care. Provide optimal conditions to maximize the tarantula’s longevity. Regular check-ups can also improve their quality of life and give you more time with your pet.
Breeding Basics
Breeding Cobalt Blue Tarantulas can be challenging and is generally not recommended for beginners. It requires careful planning and specific environmental conditions. Successful breeding involves introducing a mature male and female, monitoring them closely during mating, and providing appropriate care for the resulting eggsac and spiderlings. If you are interested in breeding, research the process thoroughly and seek guidance from experienced breeders.
