Brazilian Black Tarantula Care Guide
(Grammostola pulchra)
Common name: Brazilian Black Tarantula / Black Velvet
Overview
The Brazilian Black tarantula, scientifically known as Grammostola pulchra, is one of the most beloved species in the tarantula hobby. Known for its velvety jet-black appearance, gentle temperament, and impressive lifespan, this New World terrestrial species is a favorite for beginners and experienced keepers alike.
- Origin: Native to Brazil and parts of Uruguay
- Adult size: 5.5 to 7.5+ inches (leg span)
- Lifespan: Females can live up to 30 years; males live around 5–7 years
- Temperament: Exceptionally calm, rarely defensive, and slow-moving
- Activity: Mostly nocturnal, prefers calm, low-light environments
Housing Requirements
Enclosure Type:
A terrestrial enclosure is ideal. These spiders don’t climb and should not be kept in enclosures with excessive height, as falls can be fatal.
Enclosure Size:
- Adults: Minimum 30 × 30 × 30 cm (12″ × 12″ × 12″)
- Juveniles: Smaller containers with ample ventilation
- Slings: Compact deli cups or sling enclosures with secure lids
Substrate:
Use a mix of coco fibre, peat moss, or organic topsoil. Substrate depth of 8–15 cm (3–6 inches) is ideal to support natural burrowing behavior.
Hides & Decor:
Provide at least one secure hide, such as cork bark, a half log, or a piece of slate. Light décor or silk plants can help the tarantula feel secure, though this species doesn’t web extensively.
Ventilation:
Good airflow is critical. Use a cross-ventilated enclosure to prevent mold buildup and support healthy humidity levels.
Temperature & Humidity
- Temperature: Maintain between 21°C – 27°C (70°F – 80°F)
- Humidity: Target 55%–65%
- Substrate: Keep the lower layers slightly moist while allowing the top to remain dry
- Water: Provide a shallow water dish at all times. Mist lightly only if necessary
Avoid keeping the enclosure overly damp, as Brazilian Blacks do not thrive in high humidity environments.
Feeding & Nutrition
Diet:
Feed a variety of gut-loaded insects such as:
- Crickets
- Dubia roaches
- Mealworms (occasionally)
Feeding Frequency:
- Slings: Every 3–5 days
- Juveniles: Every 5–7 days
- Adults: Every 10–14 days
Only feed prey that is smaller than the tarantula’s abdomen to reduce the risk of injury. Always remove uneaten prey after 24 hours.
Post-Molt Feeding:
Do not feed for 3–7 days after molting (longer for adults), allowing the exoskeleton to harden.
Behavior & Temperament
The Brazilian Black is widely known as one of the most docile tarantulas available. It’s:
- Calm and slow-moving
- Tolerant of minor disturbances
- Rarely flicks urticating hairs
- Almost never defensive or aggressive
Because of this, it is often recommended as a first tarantula for new keepers or for those interested in a display species.
Handling:
While their temperament allows for occasional handling, it’s still not recommended. Any fall from a height, even a short distance, can seriously injure or kill a tarantula.
Molting
Pre-Molt Signs:
- Reduced appetite
- Lethargy
- Dull or darkened coloration
- Retreating to hide more frequently
During & After Molt:
- Leave the tarantula undisturbed
- Avoid feeding for several days post-molt
- Ensure humidity is stable during molting periods to avoid complications
Cleaning & Maintenance
- Daily: Check water dish and overall spider health
- Weekly: Remove uneaten prey, spot-clean waste
- Every 6–12 months: Full substrate change and enclosure cleaning (unless earlier issues like mold or mites occur)
Keep the enclosure clean and dry, with minimal disturbance.
Breeding (Advanced Keepers)
Breeding Grammostola pulchra is a slow process and should only be attempted by experienced keepers.
- Mating must be carefully supervised to prevent cannibalism
- Egg sacs may contain up to 600 eggs
- Spiderlings grow slowly and require frequent feeding and separation into individual containers
Summary — Quick Reference
| Trait | Details |
|---|---|
| Common Name | Brazilian Black Tarantula |
| Scientific Name | Grammostola pulchra |
| Type | Terrestrial, New World |
| Size | Up to 7.5 inches |
| Temperament | Docile, calm, slow-moving |
| Lifespan | 20–30+ years (female), 5–7 years (male) |
| Diet | Insects: crickets, roaches, worms |
| Feeding | Adults: every 10–14 days |
| Humidity | 55%–65% |
| Temperature | 21°C–27°C (70°F–80°F) |
| Handling | Not recommended (but possible) |
| Beginner Friendly | Yes — one of the best species for new keepers |
Final Thoughts
The Brazilian Black tarantula is an iconic species in the tarantula hobby. Its sleek black appearance, docile behavior, and long lifespan make it an excellent addition to any collection — whether you’re a seasoned keeper or just starting out.
With proper care, a Grammostola pulchra can be a calm, captivating companion for decades.