Brazilian Black Tarantula Care: A Comprehensive Guide

TL;DR: Brazilian black tarantulas (Grammostola pulchra) are native to Brazilian and Argentine grasslands and are among the most docile tarantulas in the hobby, making them ideal for both beginners and experienced keepers — females live 15–20 years, while males typically live only 5–7 years. They need a loose substrate mix of coconut fiber, peat moss, and vermiculite at least 3–4 inches deep, maintained at 75–85°F (24–29°C) with slight humidity. Due to habitat loss and over-collection, always opt for captive-bred individuals.

Introduction

If you're considering a Brazilian black tarantula as a pet, you've made a fantastic choice. These tarantulas, known scientifically as Grammostola pulchra, are not only beautiful but also relatively docile, making them ideal for both beginners and experienced keepers. In this guide, we'll cover everything you need to know to provide the best possible care for your Brazilian black tarantula.

Quick Species Snapshot

Common Name

Brazilian Black Tarantula

Scientific Name

Grammostola pulchra

Adult Size

Females: 5-6 inches (12.7-15.2 cm), Males: 4-5 inches (10.2-12.7 cm)

Lifespan

Females: 15-20 years, Males: 5-7 years

Natural Habitat

Brazilian black tarantulas are native to the grasslands and savannas of Brazil and Argentina.

Behavior & Temperament

What Makes the Brazilian Black Tarantula So Special?

Brazilian black tarantulas stand out due to their jet-black coloration and robust body. They are known for being relatively laid-back and slow-moving, which makes them easier to handle and less likely to stress. Their striking appearance and manageable temperament have made them a popular choice among tarantula enthusiasts.

A Species at Risk

While Brazilian black tarantulas are not currently listed as endangered, habitat loss and over-collection for the pet trade have raised concerns about their conservation status. Always opt for captive-bred individuals to help protect wild populations. Check out our guide on the importance of buying captive-bred pets here.

Taxonomy, Etymology & Natural Environment

Natural Range & Habitat

Brazilian black tarantulas are found in the grasslands and savannas of Brazil and Argentina. They prefer areas with loose soil and a consistent temperature range. In the wild, they often burrow to create a safe and secure environment.

Behavior & Temperament

Housing & Substrate – Terrestrial Setup

Enclosure Size

For a Brazilian black tarantula, a 5-gallon (19-liter) tank is typically sufficient for a spiderling, while an adult will thrive in a 10-20 gallon (38-76 liter) tank. The enclosure should be at least three times the leg span of your tarantula in length and twice as wide.

Substrate

A loose substrate is essential for these burrowing tarantulas. A mix of coconut fiber, peat moss, and vermiculite is ideal. The substrate should be at least 3-4 inches (7.6-10.2 cm) deep to allow for burrowing and should be kept slightly damp to maintain humidity.

Decor and Hides

Adding a few hiding spots like cork bark, half-log hides, or plastic caves can make your tarantula feel more secure. These hides should be placed at one end of the enclosure to mimic their natural burrowing behavior.

Temperature & Humidity

Temperature

Brazilian black tarantulas prefer a temperature range of 75-85°F (24-29°C). A heat mat or lamp can be used to maintain this temperature, but ensure there is a cool area in the enclosure as well.

Humidity

Maintain a humidity level of 60-70% to keep your tarantula comfortable. Misting the substrate and providing a water dish can help achieve this. Regularly check the humidity with a hygrometer to ensure it stays within the desired range.

Feeding Schedule

What to Feed

Brazilian black tarantulas are primarily insectivores. Feed them a variety of insects like crickets, roaches, and mealworms. For larger adults, the occasional pinky mouse can be offered as a treat.

Feeding Frequency

Spiderlings should be fed every 3-4 days, while adults can be fed once a week. Adjust the feeding schedule based on your tarantula's weight and activity level. Overfeeding can lead to health issues, so it's best to observe your tarantula's response to food and adjust accordingly.

Handling and Interaction

Handling Tips

Brazilian black tarantulas are generally docile, but handling should be kept to a minimum. When handling, move slowly and support the tarantula's body to prevent injury. Always handle after a meal to avoid triggering a defensive response.

Signs of Stress

Look out for signs of stress such as rapid flicking of urticating hairs, rearing up, or fleeing. If your tarantula displays any of these behaviors, it's best to leave it alone and avoid further handling.

Health and Wellness

Common Health Issues

As with any tarantula, Brazilian blacks can suffer from issues like dehydration, overfeeding, and poor husbandry. Ensure the enclosure is clean, the temperature and humidity are correct, and provide a consistent and appropriate diet to keep your tarantula healthy.

Molting

Molting is a natural process for tarantulas. During this time, your tarantula will be inactive and may appear lifeless. Avoid handling and feeding during molting, as this can be stressful and potentially harmful.

Breeding Brazilian Black Tarantulas in Captivity

Preparing for Breeding

Breeding Brazilian black tarantulas in captivity requires patience and careful preparation. Ensure both the male and female are well-fed and healthy before attempting to breed. The male should be at least 3 years old, and the female should be at least 5 years old.

Courtship and Mating

The male will approach the female's enclosure, tapping and vibrating his legs to attract her. If the female is receptive, she will respond with similar movements. The male will then deposit sperm and insert it into the female's receptacle. The process can take several hours, so be patient and observe from a distance.

Egg Sac Production

After mating, the female will produce an egg sac, which she will guard. Provide extra hiding spots and maintain optimal humidity levels to help her through this process. The egg sac will typically contain 50-100 eggs, which will hatch in about 6-8 weeks.

Care for Spiderlings

Spiderlings are delicate and require special care. They should be housed in small, individual containers with a damp substrate and offered small prey items like fruit flies. Gradually increase the size of their enclosure and prey as they grow.

Conclusion

Caring for a Brazilian black tarantula can be a rewarding experience. With the right setup, diet, and handling techniques, you can ensure your tarantula thrives. Whether you're a beginner or an experienced keeper, the Brazilian black tarantula is a great addition to any collection.

For more in-depth information on tarantula care, check out our guide on the Pink Toe Tarantula or our Black Rat Snake Care guide.