Stromatopelma calceatum
Featherleg Baboon - complete care guide
Featherleg Baboon
Temperature
24-28 °C
Target ambient range
Humidity
65-75 %
Substrate / enclosure RH
Adult DLS
11-13 cm
Average - varies per individual
Moult interval
Sling 3-6w - Juv 2-3mo
Adult 8-10mo
Adult cycle = mature females; males never moult again after maturity
About
African arboreal with feathered rear legs. Lightning-fast with medically significant venom.
Husbandry cheat sheet
- Origin
- West & Central Africa
- Habitat
- Rainforest canopy
- Temperament
- Defensive
- In your collection
- 0
Growth, lifespan & conservation
- Growth rate
- Fast
- Maturity
- ♀ 14mo ♂ 10mo
- Lifespan
- ♀ 10yr ♂ 2yr
- UK availability
- Commonly available
Care Guide
Stromatopelma calceatum
Featherleg Baboon - a complete husbandry sheet. Use as a starting point and adjust to your individual specimen.
What size enclosure does a Featherleg Baboon Tarantula need?
Adults
30 × 30 × 45 cm tall - height matters more than footprint. Provide generous vertical cork and anchor points for webbing.
Slings & Juveniles
Small tall vials or arboreal sling tubs with a piece of vertical cork. Upgrade as they grow - arboreal slings do best slightly cramped, not in cavernous tanks.
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 Featherleg Baboon Tarantula need?
Heating
The Featherleg Baboon is comfortable at 24-28 °C. Most UK homes sit in or near this range for most of the year; heat the room rather than the enclosure if winter drops below it.
Humidity
West African savanna arboreal: 60-70 % - notably drier than Asian arboreals. One damp substrate corner rather than spraying, strong airflow, dry-ish substrate.
Ventilation
The single most important husbandry factor for this species. Cross-flow (top + side mesh) is non-negotiable - stagnant air causes mould, mites and failed moults.
What substrate is best for a Featherleg Baboon Tarantula?
Recommended Mixes
Depth
3-5 cm
Notes
Substrate is mostly a moisture buffer - arboreals live above it. Keep one corner lightly damp, never wet throughout.
How do you set up a Featherleg Baboon Tarantula enclosure?
Décor
The Hide
A vertical cork tube or propped bark retreat positioned up off the floor - the higher the retreat, the more the spider uses it.
Water
Shallow dish on the floor. Even dedicated canopy dwellers descend to drink - keep it full and clean.
Lighting
Ambient room light only. Avoid basking lamps - they desiccate arboreal species quickly.
How often should you feed a Featherleg Baboon Tarantula?
Good Feeders
Long refusal worrying you? Separate premoult fasting from genuine problems with our "Is my T okay?" checker.
Is my Featherleg Baboon Tarantula dying or moulting?
Pre-moult signs to look for
Refusing food for weeks is normal before a moult - a healthy Featherleg Baboon Tarantula fasting is almost never an emergency in itself. Watch for slowing down and spending more time in the hide, thickening the silk hammock it sleeps in. Old World species do not flick urticating hairs, so there is no bald patch to watch - rely on fasting, lethargy and hide time instead.
On its back is MOULTING, not dying
A Featherleg Baboon 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 21-42 days for spiderlings, every 60-90 days for juveniles, and every 135-191 days for sub-adults, with adult females moulting around every 7.5 months (up to 9.8 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 5 days in this species. Offer no food and no handling for about 7 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 Featherleg Baboon Tarantula need?
🪞 Moulting
Arboreals often moult suspended in a web hammock. Do not disturb, remove prey, and slightly raise humidity around the time. Wait 5-7 days post-moult before offering food. Adult intervals apply to mature females - males never moult after their ultimate moult.
🧹 Cleaning
Spot clean webbed boluses when visible, refresh the water dish weekly. Full clean only when soiled - established webbing is valuable to the spider.
✋ Handling
Feather-leg baboons: extremely fast, defensive, potent. Never free-handle; they launch from the cork at eye level.
What are the most common mistakes when keeping Featherleg Baboon Tarantulas?
✓ What They Love
- Tall enclosure with vertical cork
- Strong cross-ventilation
- Mist one wall - let it cycle dry
- Clamping/secure lid - arboreals are escape artists
✕ Common Mistakes
- Waterlogged substrate
- Sealed, unventilated tanks
- Heat from below
- Free handling - jumps and falls kill
Keep exploring: related care guides
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