Pamphobeteus sp. Santa Domingo Goliath
Santa Domingo Goliath - complete care guide
Santa Domingo Goliath
Temperature
20-22 °C
Target ambient range
Humidity
70-80 %
Substrate / enclosure RH
Adult DLS
21-25 cm
Average - varies per individual
Moult interval
Sling 4-8w - Juv 2.2-3.6mo
Adult 11-16mo
Adult cycle = mature females; males never moult again after maturity
About
The Santa Domingo Goliath - the biggest number on any vendor's Pamphobeteus list: a claimed 25 cm, named for Santo Domingo de los Colorados in ECUADOR (not the Dominican Republic, despite the trade spelling). Cool-kept like its siblings but faster-growing and heavier-bodied, with the "Christmas tree" sling patterning retained longer than any other form. £85 for 5 cm slings buys you one of the largest captive-bred tarantulas money can get.
Husbandry cheat sheet
- Origin
- Ecuador (Santo Domingo de los Colorados)
- Habitat
- Foothill rainforest floor
- Temperament
- Flicky
- In your collection
- 0
Growth, lifespan & conservation
- Growth rate
- Medium
- Maturity
- ♀ 56mo ♂ 38mo
- Lifespan
- ♀ 18yr ♂ 4yr
- Continent
- South America
- UK availability
- Rare in the hobby
Care Guide
Pamphobeteus sp. Santa Domingo Goliath
Santa Domingo Goliath - a complete husbandry sheet. Use as a starting point and adjust to your individual specimen.
What size enclosure does a Santa Domingo Goliath Tarantula need?
Adults
45 × 30 cm (18 × 12 in) for a mature adult - plan for the maximum size.
Slings & Juveniles
Small deli cups, upgrading steadily toward the adult enclosure.
To map exact floor space and substrate safety limits for your setup, use our free interactive tarantula enclosure planner.
What temperature and humidity does a Santa Domingo Goliath Tarantula need?
Heating
The Santa Domingo Goliaths is comfortable at 20-22 °C - the coolest band of the genus; UK room temperature usually suffices.
Humidity
70-80 %: overflow the water dish weekly and let it dry back.
Ventilation
Cross-ventilation is essential.
What substrate is best for a Santa Domingo Goliath Tarantula?
Recommended Mixes
Depth
10 cm
Notes
Keep substrate dry to barely moist. Pack firm; 10 cm for digging at scale.
How do you set up a Santa Domingo Goliath Tarantula enclosure?
Décor
The Hide
A large cork bark half-log or leaning slab, webbed heavily once settled.
Water
Always provide a LARGE shallow water dish - refresh often at this mass.
Lighting
No special lighting needed.
How often should you feed a Santa Domingo Goliath Tarantula?
Good Feeders
Long refusal worrying you? Separate premoult fasting from genuine problems with our "Is my T okay?" checker.
Is my Santa Domingo Goliath Tarantula dying or moulting?
Pre-moult signs to look for
Refusing food for weeks is normal before a moult - a healthy Santa Domingo Goliath Tarantula fasting is almost never an emergency in itself. Watch for slowing down and spending more time in the hide, laying a thick moult mat of web on the floor. New World species like this one often show a bald spot on the abdomen that darkens to near-black as the new skin underneath readies - a darkening bald patch is a reliable countdown, not a disease.
On its back is MOULTING, not dying
A Santa Domingo Goliath Tarantula lying upside down or on its side with legs curled inwards is almost certainly mid-moult. Do not touch it, do not right it, do not mist it - just remove any live prey (crickets can kill a defenceless moulter) and leave the room.
How long between moults?
For this species, expect a moult roughly every 28-56 days for spiderlings, every 65-108 days for juveniles, and every 150-240 days for sub-adults, with adult females moulting around every 11 months (up to 15.7 months at the extreme). Males never moult again after their ultimate (mature) moult.
After the moult: fang hardening time
The new exoskeleton stays soft, with fangs that cannot grip, for roughly 8 days in this species. Offer no food and no handling for about 8 days - feeding too early is how fresh moulters get injured. The shed exuvium is also the best sexing tool there is - see our tarantula sexing guide for what to look for.
Genuinely worried about behaviour that is not moulting? Our "Is my T okay?" triage tool walks the danger signs one by one.
What ongoing care does a Santa Domingo Goliath Tarantula need?
🪞 Moulting
Signs: refuses food, abdomen darkens and goes glossy, becomes sluggish, often heavy webbing or a moult mat. During the moult: do not disturb, remove any live prey, keep water available. Wait until the fangs are black and hard (a week-plus at this size) before feeding again. Adult intervals apply to mature FEMALES - a mature male never moults again.
🧹 Cleaning
Daily: check the water dish. Weekly: remove uneaten prey boluses and spot-clean.
✋ Handling
Heavy hair-kicker at a spectacular size - look, do not hold.
What are the most common mistakes when keeping Santa Domingo Goliath Tarantulas?
✓ What They Love
- Fresh water dish at all times
- Cool-side stable temperature
- Cross-ventilation
- A proper hide and deep substrate
- Sizing the enclosure for a 25 cm adult
✕ Common Mistakes
- Overheating - coolest band of the genus
- Soaking-wet substrate
- Free handling
- Expecting the sling pattern to fade quickly
Keep exploring: related care guides
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