The field journal
Know your Borneo Black Tarantula
Listing identity: Phormingochilus arboricola – Borneo Black Tarantula
Use the shared guide for core enclosure and maintenance principles. Exact enclosure dimensions, temperature and watering frequency depend on the species, life stage and stock history; confirm these before acquisition.
The principles below apply alongside the individual notes above; size, maturity, locality and established stock history can change the details.
Build the stronghold
A refuge suited to this animal
Use a secure, ventilated enclosure with firmly placed upright cork, a sheltered vertical retreat and safe access for water and feeding. Include suitable substrate at the base. Do not provide an exposed tall container with nowhere to hide.
Use clean materials without pesticide or fertilizer contamination. Secure heavy furnishings before adding substrate, prepare the enclosure before arrival and size all gaps to the smallest animal you will house.
Balance the habitat
Water, moisture & temperature
Keep drinking water accessible and confirm the successful temperature and substrate-moisture routine for Phormingochilus arboricola and its life stage. Do not transfer another species’ humidity percentage to this animal. Avoid uncontrolled bottom heating, a flooded retreat or blocked ventilation.
A humidity gauge measures air, not whether the retreat is structurally sound, desiccated or waterlogged. Inspect accessible substrate and water sources without destroying the animal’s refuge.
Stock the royal pantry
Feeding this animal
Offer captive-bred insects sized to the actual animal. Tiny juveniles need much smaller prey than adults. Adjust portions and intervals to body condition and feeding response; remove uneaten prey when refused and before a molt. Do not routinely feed vertebrates or leave dangerous prey loose with a vulnerable animal.
Offer suitable insects, remove leftovers and leave web retreats undisturbed during premolt. Rehousing should be planned within a controlled secondary work area, not improvised after opening the lid.
Give them quiet
Protect a vulnerable molt
Leave a closed premolt retreat undisturbed. Do not force food into a burrow, pull off old exoskeleton or move an animal that is shedding. Remove uneaten live prey. Resume feeding only after the new exoskeleton and feeding structures have hardened; recovery time varies with species and size.
Keep the watch
A steady keeper routine
Check enclosure security, water access and the animal’s condition each day without repeatedly opening its retreat. Remove accessible food remains, check for spoiled material and keep a record of meals, molts and changes. Spot-clean around established silk or burrows rather than rebuilding the whole enclosure unnecessarily.
House individually as the default and observe without handling. Secure lids and ventilation openings for the actual animal. Plan transfers within a controlled work area and protect delicate limbs, silk retreats and burrows from unnecessary disturbance.
Read the signs
When to review the setup
| What you notice | First checks |
|---|---|
| Food repeatedly refused | Check water, condition, maturity and signs of premolt; remove leftover prey rather than forcing a feeding response. |
| Refuge drying or flooding | Inspect the actual shelter and substrate. Adjust appropriate areas gradually while retaining ventilation. |
| Persistent weakness or injury | Record conditions and recent changes; seek an experienced exotic-animal veterinarian rather than attempting improvised treatment. |
| Escape or containment fault | Secure the room, protect others from contact and follow a planned, hands-off recovery procedure. |
From the keeper’s camp
Borneo Black Tarantula FAQs
What enclosure does Phormingochilus arboricola need?
Provide stable upright cork and a protected vertical retreat, with suitable substrate below. Plan hands-off access for water, feeding and transfers.
How should I manage water and temperature for Phormingochilus arboricola?
Use the water and moisture section above alongside the actual stock’s successful routine. Measure conditions at the retreat, retain drinking access and ventilation, and account for life stage. Avoid changing the entire setup to chase a single air-humidity reading.
What should I feed Phormingochilus arboricola?
Offer suitably sized captive-bred insects. Review portions and intervals against the animal’s size, body condition and feeding response; tiny juveniles need smaller prey. Remove refused prey rather than repeatedly trying to force a feeding response.
What should I do during a molt?
Keep the animal undisturbed, protect its retreat and remove uneaten live prey. Do not open a sealed burrow to check the molt or pull away old exoskeleton. Resume feeding after the new exoskeleton and feeding structures have hardened; timing varies.
Can I handle or house Phormingochilus arboricola with another animal?
Use individual housing and observation as the default. A calm animal or a reputation for mild venom is not proof that handling is safe. Plan maintenance around escape prevention and the animal’s vulnerable molting period.
How do I check that I am using the right care sheet?
This page belongs to the exact product linked below. Keep its full listing identity, size or life stage and stock history with your records. If identity or care details are uncertain, confirm them before changing conditions rather than substituting a similar-looking animal.
Return to the royal inventory
The matching product
Borneo Black Tarantula
Phormingochilus arboricola
See the product for current price, stock, size and shipping options.
Size & stock options
- Size: 1/2-3/4" · 1-1.5"
The product selector is the authority for available options and current stock. Confirm any size, sex or life stage that is not specified before ordering.
The keeper’s journal
Keep the full stock history
Record the complete listing name, supplier provenance where available, acquisition date, selected life stage, feeding response, molts and the conditions used successfully. Never release captive animals outdoors.
Care content reviewed November 6, 2026. Ask the Isopod King keeper team →