In stock Cobalt Blue Tarantula for sale All tarantulas for sale
Melopoeus lividus
Cobalt Blue Tarantula: Advanced Care Guide
Keeper Snapshot: A deep-burrowing tarantula from Myanmar and Thailand that spends long stretches out of sight. Build the retreat first: deep firm substrate, anchored cork, a water dish and secure vents, then leave its tunnels alone.
Group: TarantulasDifficulty: Spice 4: AdvancedSetup: Burrower, deep firm soil under anchored corkHandling: No handling, catch cup and tools only
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 | 68-78°F |
|---|---|
| Humidity | 65-80%: lightly damp lower soil, drier top |
| Setup Type | Burrower, deep firm soil under anchored cork |
| Substrate | Firm soil/coir, half to 3/4 full, lightly damp below |
| Feeding | Crickets/roaches no longer than abdomen, fed to condition |
| Care Difficulty | Spice 4: Advanced |
| Handling | No handling, catch cup and tools only |
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 spiderlings: secure sling enclosure or Baby Buddy with escape-tight vents, a full retreat, molt space and water
- Larger spiders: Burrow Buddy while it fits the burrow, turning and molt space, then a deeper custom build
- Any size: build to the spider in front of you. Size alone won't tell you sex or maturity.
Warnings First
- No handling. Keep hands away from it: have a catch cup ready before opening, and use tools for maintenance.
- Secure the lid and check every vent gap before the spider goes in.
- One spider per enclosure. They fight and cannibalize.
- Never leave live feeders with a molting or newly molted spider.
- Anchor furnishings so digging can't collapse them, and keep hard objects out of the fall zone.
- Don't dig out or flood a sealed burrow just to check on it.
Simple Care
- House one spider per enclosure.
- Have a catch cup ready before you open the lid, and use tools for maintenance.
- Give it a firm starter retreat under anchored cork and let it remodel.
- Keep the lower soil lightly damp and the surface drier, without sealing the enclosure.
- Check the water dish and substrate often. Add water slowly down an edge, away from the retreat.
- Offer manageable prey and clear leftovers by the next day.
- Leave sealed burrows and molting spiders alone.
Advanced Keeper Notes
Enclosure & Microclimate
- Pick the enclosure by leg span, burrow space, and room to turn and molt. A deep fill alone doesn't make a small container big enough.
- Sling enclosures can be about two-thirds full, bigger burrow builds half to three-quarters. Leave usable room above the substrate.
- Pack the substrate so it holds a tunnel: it should clump when squeezed without dripping. Loose dry coir won't hold a burrow.
- Anchor cork and light web supports securely. Put the water dish where you can refill it without wrecking the retreat.
- Water slowly down an edge and keep the vents open. Misting the surface can leave deeper soil dry, so check a visible edge instead of watering on a calendar.
Feeding, Growth & Maintenance
- Drop prey near the retreat and close up fast. Don't hold food against the fangs with tongs.
- Prey no longer than the abdomen. Tiny slings can take small pre-killed pieces. Young spiders need smaller meals and closer watching.
- Feed to the abdomen and feeding response, not a calendar. Cut back or pause when it's well fed. If it refuses, pull the feeder and keep water in.
- After a molt, wait until the new fangs and body harden before feeding. There's no fixed day count for every size.
- Remove prey remains and boluses without tearing up established tunnels.
Possible Origin / Range
- Likely native range: Myanmar and Thailand.
- Habitat translation: Deep substrate and anchored cork give it choices for a covered retreat. Hold moisture below the surface and keep the vents open.
Advanced Keeper Details
- Expect long hidden stretches in a burrow setup. Keep up water and upkeep without forcing it into view.
- Previously Haplopelma lividum and Cyriopagopus lividum. Some hobby pages still file it under Cyriopagopus.
- See a vet experienced with invertebrates for persistent loss of condition, injury or trouble molting.