Mexican Red Knee Tarantula Care
Species: Brachypelma hamorii
Common Name: Mexican Red Knee Tarantula
The Mexican Red Knee Tarantula (Brachypelma hamorii) is one of the most recognizable and beloved tarantulas in the hobby. With its striking orange-red joints and calm demeanor, this species is often the face of the tarantula world — making it a popular choice for both beginner and experienced keepers alike.
Native to the dry scrublands and deserts of western Mexico, this species is slow-growing, long-lived, and highly tolerant of handling when properly cared for.
Quick Facts
- Scientific Name: Brachypelma hamorii
- Common Name: Mexican Red Knee Tarantula
- Origin: Pacific coast of Mexico
- Adult Size: 12–15 cm (5–6 inches) leg span
- Lifespan: Females 20–25 years; Males 5–7 years
- Temperament: Docile, slow-moving, generally calm
- Experience Level: Excellent for beginners
Housing & Enclosure
The Mexican Red Knee is a terrestrial species that spends most of its time on or near the ground. It appreciates floor space and a cozy hide over vertical height.
Recommended enclosure sizes:
- Juveniles: 10–15 cm terrarium
- Adults: 30×30×30 cm or similar enclosure
Provide 8–10 cm of dry substrate (such as coco coir or topsoil) and at least one hide. Avoid tall setups — a fall can injure this species. Ensure a secure, ventilated lid to prevent escapes and maintain air circulation.
Substrate & Decoration
Use a dry substrate such as coco coir, peat moss, or organic topsoil. The substrate should stay mostly dry, with only a slightly damp area if humidity drops too low.
Add simple decor: a cork bark hide, a small water dish, and perhaps some artificial plants or rocks for a natural look. Mexican Red Knees appreciate a clean, uncluttered enclosure.
Temperature & Humidity
- Temperature: 23–27°C (73–80°F)
- Humidity: 60–70%
This species prefers a dry environment with a small moist area to drink from. Maintain moderate humidity but never allow the substrate to become soggy. Good ventilation helps prevent mold.
Always keep a shallow water dish filled with clean water available.
Feeding & Water
Feed live prey appropriate to the spider’s size, such as crickets, roaches, or mealworms. This species has a slow metabolism, so avoid overfeeding.
Feeding schedule:
- Juveniles: Every 5–7 days
- Adults: Every 10–14 days
Remove uneaten prey within 24 hours. Provide a clean water dish at all times — dehydration is rare but can be dangerous if ignored.
Handling & Temperament
The Mexican Red Knee is famous for its calm and tolerant nature. Many individuals can be handled gently, though all tarantulas should be respected and handled minimally.
Use slow, careful movements, and handle close to the ground to prevent falls. While bites are extremely rare, they do possess urticating hairs, which can cause mild irritation.
Tip: Gently encourage the tarantula to walk onto your hand rather than picking it up directly.
Molting
Molting is a normal and healthy part of growth. Prior to molting, your tarantula may stop eating, appear darker, and become more reclusive.
Do not disturb or feed during this time. After the molt, wait at least a week before offering food again to allow the exoskeleton to harden.
Common Health Issues
- Mold: Caused by poor ventilation or excessive moisture — spot-clean and improve airflow.
- Dehydration: Rare; ensure a clean water source.
- Stress: Overhandling, bright lights, or vibrations can cause restlessness.
- Injury: Avoid falls or sharp objects in the enclosure.
Breeding (Overview)
Breeding Brachypelma hamorii is well-documented and relatively safe if performed correctly.
- Ensure both male and female are well-fed before introduction.
- Mating is usually gentle and may take several minutes.
- Females produce egg sacs containing 200–400 eggs after 6–8 weeks.
Always supervise introductions closely to avoid aggression.
Quick Care Checklist
- Type: Terrestrial
- Enclosure: 30×30×30 cm, wide floor space
- Substrate: Dry coco coir or topsoil (8–10 cm deep)
- Temperature: 23–27°C
- Humidity: 60–70%
- Feeding: Crickets or roaches every 10–14 days
- Handling: Gentle, calm species — great for beginners
Final Thoughts
The Mexican Red Knee Tarantula is one of the most iconic and enduring species in the hobby. Its calm personality, beautiful coloration, and hardiness make it the perfect ambassador for tarantula keeping.
With proper care, this species can live for decades, offering a lifetime of fascination and appreciation for both new and seasoned enthusiasts.
© The Tarantula Vault
All information is for educational purposes only and not a substitute for professional veterinary care.
Visit thetarantulavault.com for more expert tarantula care guides.