U tarantulas represent some of the most iconic spiders in the hobby, combining striking colors with impressive size. These Old World tarantulas are popular among enthusiasts who value observation, terrarium design, and understanding nuanced care requirements.
Whether you are researching species diversity, planning a setup, or comparing traits, this guide highlights key characteristics and practical considerations for keeping us tarantulas in captivity.
| Common Name | Scientific Name | Adult Size | Typical Lifespan |
|---|---|---|---|
| Thailand Zebra Tarantula | Chilobrachys sp. | 13–15 cm leg span | 12–15 years |
| Selatan Orange Tarantula | Phlogiellus subvillosus | 12–14 cm leg span | 10–12 years |
| Chinese Bird Spider | Ornithoctonus huwena | 15–18 cm leg span | 15–20 years |
| Cyriocosmus elegans | Cyriocosmus elegans | 5–6 cm leg span | 8–10 years |
Natural History and Origin
Us tarantulas are found across Southeast Asia, including Thailand, Malaysia, Indonesia, and parts of China. Their habitats range from forest floors to more arid regions, influencing burrowing behavior and moisture needs.
Understanding their native climate helps keepers replicate temperature gradients, humidity levels, and substrate depth that support natural activity cycles and healthy molting.
Housing and Enclosure Setup
Space and Security
Enclosure dimensions should match the span of the tarantula, with enough room for a secure hide and appropriate substrate for burrowing or web placement. Stability and access points reduce stress during maintenance.
Substrate and Furnishings
Deep peat or coco fiber allows burrowing species to construct safe retreats, while cork bark or artificial plants offer anchor points for silk retreat construction and visual screening.
Feeding and Nutrition
Prey Selection and Frequency
Adult us tarantulas typically receive appropriately sized crickets, roaches, or occasional mice, with frequency adjusted to growth rate and body condition to avoid obesity or prolonged fasting stress.
Supplementation and Hydration
A shallow water dish changed regularly and gut-loaded prey items contribute to overall hydration and mineral balance, supporting activity, molting, and reproductive health.
Health, Molting, and Common Concerns
Signs of good health include consistent appetite, active exploration, and intact exoskeletons during molting. Keepers should monitor for failed molts, limb loss, or lethargy, which may indicate humidity, temperature, or nutritional issues.
Breeding and Long Term Care
Successful breeding programs focus on gradual conditioning, precise photoperiod cues, and careful monitoring of female receptivity to reduce stress and improve hatchling survival.
FAQ
Reader questions
How often should I feed an adult us tarantula?
Offer food once every 7–10 days for most active species, adjusting to appetite, body condition, and seasonal fluctuations in metabolism.
What enclosure height is suitable for arboreal us tarantulas?
Vertical setups should provide at least two to three times the leg span in height, ensuring ample climbing space and a secure, elevated retreat.
Can multiple us tarantulas be kept together?
Keeping multiple individuals in one enclosure is generally discouraged due to risks of cannibalism, stress, and difficulty monitoring health in the group.
What should I do if my tarantula refuses food for several weeks?
Check enclosure temperature and humidity, verify prey size and movement, and consider a brief fasting period, then reintroduce feeding with fresh prey items at appropriate intervals.