California trapdoor spider (Bothriocyrtum californicum)
Photo: Davefoc / CC BY 3.0 · via Wikimedia Commons

Arachnid · Other spider

California trapdoor spider care guide

Bothriocyrtum californicum

Intermediate

The california trapdoor spider is a intermediate-level other spider from S California, Baja California. Adults reach Body 2.5–3 cm and live 15–20 years in captivity. Needs deep, compacted clay-soil mix to build its corked trapdoor burrow.

  • Enclosure 20 × 20 × 20 cm
  • Temp 20–25°C
  • Humidity 50–65%

How much does a california trapdoor spider cost in Canada?

Animal$40–100Typical captive-bred price
Bioactive enclosure$80–140Enclosure $30–60 · equipment $20–40 · bioactive supplies ≈ $40
Yearly upkeep$20–40Food, supplements, bulbs, power, vet fund
First year total$140–280All prices CAD, estimates

California trapdoor spider quick facts

Skill level
Intermediate
Adult size
Body 2.5–3 cm
Lifespan
15–20 years
Activity
Nocturnal
Native range
S California, Baja California
Minimum enclosure
20 × 20 × 20 cm (8 × 8 × 8 in, ≈ 2 US gal)
Housing
Best kept alone.
Temperature
20–25°C
Humidity
50–65%
UVB
Not needed
Diet
Insectivore – crickets, dubia roaches, mealworms
Bioactive style
Burrowing tarantula

California trapdoor spider enclosure & bioactive setup

Give one adult at least 20 × 20 × 20 cm (8 × 8 × 8 inches). Best kept alone. This species suits a burrowing tarantula bioactive build.

  1. Leaf litter2 cm
  2. Jurassic ABG Tarantula Mix15 cm

Deep, slightly packed soil lets burrows hold their shape. Moisten the lower layers; the top can be drier.

Temperature: 20–25°C. Humidity: 50–65%. UVB: Not needed.

What does a california trapdoor spider eat?

Insectivore – crickets, dubia roaches, mealworms. Adults: 1–2 crickets every 1–2 weeks, dropped near the trapdoor.

Handling, temperament & health

Reclusive and slow; it stays in its burrow, so observe rather than handle.

Health watch: Disturbing the burrow forces it to rebuild; leave the trapdoor alone and keep deep soil slightly moist.

Cleaning & maintenance schedule

Daily

  • Visual check only.

Weekly

  • Offer food at the burrow entrance; remove leftovers.
  • Refill water; moisten one corner so the deep soil stays damp.

Monthly

  • Check moisture deep down by pouring a little water at the edge.

Yearly

  • Rehouse as the spider grows.

Recommended for a california trapdoor spider bioactive

Quantities are for one minimum-size enclosure (20 × 20 × 20 cm).

California trapdoor spider FAQ

Is the california trapdoor spider good for beginners?

The california trapdoor spider is best for keepers with some experience (intermediate). Reclusive and slow; it stays in its burrow, so observe rather than handle.

What size enclosure does a california trapdoor spider need?

At least 20 × 20 × 20 cm (about 8 × 8 × 8 inches, roughly 2 US gallons) for one adult. Best kept alone.

How much does a california trapdoor spider cost in Canada?

Typically $40–100 CAD to buy, about $80–140 CAD for a complete bioactive enclosure, and $20–40 CAD a year to keep.

What temperature and humidity does a california trapdoor spider need?

Temperature: 20–25°C. Humidity: 50–65%.

What does a california trapdoor spider eat?

Insectivore – crickets, dubia roaches, mealworms. Adults: 1–2 crickets every 1–2 weeks, dropped near the trapdoor.

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This care sheet is general guidance from One Bioactive, not veterinary advice. Needs vary with age, locality and individual animals – confirm with your breeder and an exotics vet. Prices are typical Canadian ranges in CAD and change over time.