Acanthoscurria geniculata
✓ VerifiedBrazilian White Knee, Giant White Knee
Photo: unknown author via Wikimedia Commons
Quick Facts
Adult Size
8-9 inches
Growth Rate
fast
Temperament
defensive, bold
Taxonomy
Community
Experience Required
Intermediate
Some experience recommended
🌡️ Climate Requirements
Temperature Range
75–85°F
(24–29°C)
Humidity Range
70% - 80%
🏠 Enclosure Sizes
Sling
Small deli cup
Juvenile
8x8x8"
Adult
18x18x12"
🪨 Substrate
Type
coco fiber, peat moss
Depth
4-5 inches
🍽️ Feeding Schedule
Sling
Every 2-3 days
Juvenile
Every 3-4 days
Adult
Once per week
Prey Size
Large insects, occasional pinky mouse
What keepers actually do
Tarantuverse keepersEvery 8 days
Median across 4 keepers · 4 animals · 29 logged feedings
Observed across all life stages, so slings and adults are combined. This describes what keepers log — it isn’t a recommendation.
💧 Additional Care Notes
Water Dish
Required
Webbing
minimal
Burrowing
No
🕷️ Behavior & Temperament
General Temperament
defensive, bold
Care Guide
Large, impressive species with white bands on legs. Bold personality often out in open. Voracious eater with strong feeding response. Can be defensive and may throw threat poses. Fast-growing to impressive size.
⚠️ Safety Information
Urticating Hairs
This species has urticating hairs that can cause irritation if handled. Use caution during maintenance.
Venom Potency
Venom is not considered medically significant to humans, though reactions may vary.
Species Statistics
23
Total Keepers
N/A
Community Rating
Intermediate
Care Level
🕷️
Keeping Brazilian White Knee?
Tarantuverse is the free app for tracking your collection — log feedings, molts, and growth, get premolt predictions, and keep every care detail in one place. Works on web, iOS, and Android.
Free for up to 15 animals · No credit card required