Pelinobius muticus
King Baboon Tarantula: Advanced Care Guide
Keeper Snapshot: A legendary old-world burrower: huge, defensive, slow-growing, and best kept as a tunnel-and-ambush display animal. The setup is simple; the safety protocol is not optional.
Group: Industry StaplesDifficulty: Spice 4: AdvancedSetup: Old World deep fossorial tarantulaHandling: NEVER
Use This Guide Safely
- Confirm the exact animal. Match this guide to the species, locality, size, and life stage on your label. If the ID is uncertain, use the more conservative part of the range and ask before changing the setup.
- Change one thing at a time. Treat temperature and humidity as target zones, then watch posture, burrowing, drinking, feeding, and molt behavior before making another adjustment.
- Respect the handling boundary. If the guide says no handling, fast, defensive, or medically significant, plan transfers with catch cups, locked lids, and no bare hands. For serious bites, stings, or symptoms, seek emergency medical care.
Quick Snapshot
| Temperature | 74-82°F |
|---|---|
| Humidity | Moderate ambient (60-75%) with cross ventilation at substrate level; damp lower layer, dry surface |
| Setup Type | Old World deep fossorial tarantula |
| Substrate | Very deep packable soil/coco mix with a pre-started burrow |
| Feeding | Juveniles weekly; adults every 2-4 weeks depending on body condition |
| Care Difficulty | Spice 4: Advanced |
| Handling | NEVER |
Humidity zones: Very Low under 30% - Low 30-60% - Low-Moderate 40-70% - Moderate 60-80% - Moderate-High 70-85% - High 80%+ - Very High 90%+
Enclosure Format / Size Class
- small secure sling setup
- temporary juvenile burrow grow-out
- deep adult enclosure with 8-12 in of packable substrate
Warnings First
- Old World tarantula: no urticating hairs, defensive bite risk instead
- Deep substrate is mandatory
- Do not rehouse casually or excavate
- Long-lived and slow to mature
- A deep damp burrow you are told never to excavate is one you must ventilate correctly the first time. Vents low on two opposite walls, at the substrate line.
Simple Care
- Build the burrow before the spider arrives.
- Keep a damp lower layer and a dry-to-moderate surface.
- Cross ventilation low on two opposite walls, at the substrate line, so the burrow column can breathe.
- Water dish with pebbles in it so slings cannot drown.
- Open only with tools, catch cup, and a plan.
Advanced Keeper Notes
Enclosure & Microclimate
- The enclosure should be deep first and pretty second. Start a tunnel against the side or under cork so you can monitor without digging.
- Packable substrate matters. Loose fluffy substrate collapses and turns a fossorial setup into a stress box.
- Keep ventilation steady and hydrate the lower layers; avoid a wet open surface that molds.
- Steady ventilation on a deep fossorial means placing it at the substrate line. A deep damp burrow exchanges almost no air at the bottom on its own, and on a species you are advised never to excavate you get no chance to correct it later. Vents low on two opposite walls keep the top of the column connected to moving air so the tunnel below stays fresh, while the open surface stays dry as intended.
- Ventilation and ambient humidity are one system with the substrate carrying the moisture. Hold 60 to 75% by hydrating the lower layers and running a dish, with vents flowing freely. Sealing the enclosure to raise the reading produces exactly the wet, moldy surface the note above warns against.
- Judge by the substrate rather than a gauge. It should pack firmly and hold a tunnel, feel damp at depth without weeping water, and read dry at the surface. A sour smell from the burrow means too wet or too still.
- Keep the dish full and put pebbles or coarse grit in it so the waterline sits below the rim. A slow-maturing species spends years at a size where an adult-scaled dish is a hazard, and on an obligate burrower you will not see it often enough to catch a problem.
- Hydrate down one side of the enclosure or at the tunnel you started against the glass, rather than misting the surface. That recharges the column where the microclimate is without wetting the open surface.
Feeding, Growth & Maintenance
- Drop prey near the burrow entrance and let the spider decide. Remove uneaten prey promptly.
- Molting: sealed burrow plus fasting means hands off. Do not excavate to check. Wait until the spider reopens and hardens before feeding.
- Adults do not need heavy feeding. A lean, settled king baboon is safer than an obese one in a cramped tunnel.
Possible Origin / Range
- Likely native range: East African savanna and dry woodland regions, especially Kenya and Tanzania.
- Habitat translation: Deep warm fossorial setup with stable tunnel humidity, a dry surface option, and minimal disturbance.
Advanced Keeper Details
- Formerly seen in the hobby as Citharischius crawshayi; older labels may still use that name.
- This species can stridulate and threat-pose readily. Respect the warning instead of testing it.
- Females can live well over a decade. Plan the adult enclosure early because rehousing a large king baboon is where mistakes happen.