Diplocentrus spitzeri
Ruby Rock Scorpion: Advanced Care Guide
Keeper Snapshot: A stocky semi-arid scorpion that loves to dig deep, then hide under bark: hardy and room-temperature friendly, adults about 3-4 inches with mild venom.
Group: ScorpionsDifficulty: Spice 2: BeginnerSetup: Semi-arid burrowing terrestrial (deep substrate + bark hides)Handling: Not recommended
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 | 70-90°F |
|---|---|
| Humidity | Low ambient (35-50%) with good airflow; dry surface, faintly damp burrow depth |
| Setup Type | Semi-arid burrowing terrestrial (deep substrate + bark hides) |
| Substrate | Deep (3-4 in+) packable coco/sand/peat or topsoil mix to burrow in: dry on top, faintly moist down low; plus bark slabs to hide under |
| Feeding | Small prey weekly |
| Care Difficulty | Spice 2: Beginner |
| Handling | Not recommended |
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
- Baby Buddy: secure starter enclosure for 2i-3i instars (escape-proof ventilation only)
- Burrow Buddy: secure burrow setup for larger juveniles and adults (give a full-grown adult a roomier floor and a bit more depth if you can)
Warnings First
- Can pinch and sting when stressed
- Avoid wet substrate
- Offer stable hides
- The faint moisture down at burrow depth needs airflow above it. Cross ventilation at substrate level is what keeps a damp burrow base healthy instead of stagnant.
Simple Care
- Deep, packable substrate it can dig into, plus bark to hide under.
- Cross ventilation low on two opposite walls so the burrow layer keeps exchanging air.
- Dry up top: light occasional mist, faint moisture down low, and always a water dish with pebbles in it so small instars cannot drown.
- Room temperature is fine; use stable decor that won't collapse on a burrower.
Advanced Keeper Notes
Enclosure & Microclimate
- A dry, packable substrate with cork or rock-like retreats works well. This species values secure tight hides.
- Keep humidity low but do not dehydrate tiny juveniles; a small damp patch can be used briefly and allowed to dry.
- Give it real depth (3-4 inches or more of packable substrate so it can dig a proper burrow) plus a few flat bark pieces to hide under. Keep the surface dry; the burrow itself stays at a stable, slightly damper microclimate. A small water dish is worth having: arid scorpions like this will drink and also draw moisture from damp substrate.
- That burrow microclimate is the thing to protect, and ventilation is how you protect it. Vents low on two opposite walls, at or just above the substrate line, keep air crossing the burrow layer so the faint dampness down there stays fresh. Vent only through the lid and the surface dries while the burrow base holds still, damp air against the animal, which is the standard route to cuticle fungus on a semi-arid burrower.
- Airflow and ambient humidity trade off, and here that trade does the work for you. Good cross ventilation holds ambient at 35 to 50% without effort, so the water dish and the faint lower-layer moisture are the only inputs you manage. Never restrict vents to hold a reading.
- Judge by hand rather than by gauge. The top inch should read dry, the base of the burrow faintly cool and damp with no free water when squeezed. If the surface never dries after a mist, add airflow.
- Keep the water dish shallow and pack it with pebbles or coarse grit so the water sits below the rim. Tiny juveniles are the ones at risk of dehydration and also the ones that drown in an open dish, so the stones let you leave water permanently available without the hazard.
- Mist under the bark slabs rather than over the open surface. That recharges the damp pocket where the scorpion shelters and leaves the dry surface and the airflow intact, which is the contrast this species is built around.
Feeding, Growth & Maintenance
- Feeding: small crickets or roach nymphs around body length, smaller for instars; it hunts at night, so feed in the evening. Young eat every 4-7 days, adults every 1-2 weeks; remove uneaten feeders, especially before a molt.
- Growth: matures over roughly 5-6 molts. When it goes off food and seals up for a molt, take all feeders out, and leave the soft, pale new molt undisturbed until it hardens and darkens.
- Maintenance: spot-clean boluses and feeder remains; keep humidity low. A small damp patch briefly, then dry, not a humid tropical setup (this is the dry-habitat exception in Diplocentrus). Don't dehydrate tiny juveniles, but don't wet the enclosure. It settles into a packed-substrate hide and dislikes being moved.
Possible Origin / Range
- Likely native range: Arizona (USA) and Sonora (Mexico): 'sky island' mountain ranges; semi-arid rocky and oak-grassland slopes with a monsoon season, so dry overall but not true desert.
- Habitat translation: A deep dry burrow with a stable, slightly moister core; bark hides on top; light hydration via a water dish and brief damp patches.
Advanced Keeper Details
- Provide compactable substrate and a starter hide; they settle better with tight cover.
- Track molts and hydration by behavior and body condition; do not turn it into a humid tropical setup.
- Room-temperature compatible: early spring in its native sky-island ranges drops well under 70°F, so it doesn't need supplemental heat (warmth just speeds growth and appetite).
- Adult size ~3-4 in; venom is mild. Note that most of the genus Diplocentrus lives in humid soil and caves, but D. spitzeri is the dry-habitat exception (Arizona/Sonora 'sky islands'), so the dry setup above is correct for this species specifically.