Aphonopelma marxi
Grand Canyon Black
Quick Facts
Adult Size
~4 inches
Growth Rate
slow
Temperament
docile; not observed to kick hair or threat-pose
Taxonomy
Community
Experience Required
Beginner Friendly
Great for first-time keepers
🌡️ Climate Requirements
Temperature Range
70°F - 85°F
(21°C - 29°C)
Humidity Range
55% - 70%
🏠 Enclosure Sizes
Adult
8x8x6 inches
🪨 Substrate
Type
peat/coco/vermiculite mix packed firm; bark hide or starter burrow; water dish
Depth
4 inches
🍽️ Feeding Schedule
Adult
2 prey weekly
💧 Additional Care Notes
Water Dish
Required
Webbing
light
Burrowing
Yes
🕷️ Behavior & Temperament
General Temperament
docile; not observed to kick hair or threat-pose
Care Guide
A dark US-native from the Four Corners high country (AZ, NM, CO, UT), reaching about 4 inches. Slow-growing (roughly five years to 3 inches at low-80s temps) and notably docile — keepers report no hair-kicking or threat displays. Keep on about 4 inches of firm peat/coco/vermiculite substrate with a bark hide or starter burrow and a water dish; tolerates a wide temperature range. Hardy classic-New-World beginner care. Urticating hairs; venom not medically significant.
⚠️ 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
0
Total Keepers
N/A
Community Rating
Beginner Friendly
Care Level
🕷️
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