Ybyrapora spp.
Identity confidence: provisional. This is a genus, group, or trade name rather than a confirmed species. Treat it as the closest match we can stand behind, and use the more conservative end of any range.
Amazon Pinktoe Tarantulas: Advanced Care Guide
Keeper Snapshot: Small web-loving pinktoes from Brazil's Atlantic forest (split from Avicularia in 2017): docile, fast, and treated like Avicularia/Caribena: vertical, dry substrate, lots of ventilation, water dish. A touch more moisture-tolerant than Caribena. Adults reach about 4.5-5.5 inches across.
Group: Industry StaplesDifficulty: Spice 3: IntermediateSetup: Arboreal with heavy ventilationHandling: 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 | 72-80°F |
|---|---|
| Humidity | Moderate ambient with heavy cross ventilation; dry substrate + water dish, occasional web droplets (60-80%) |
| Setup Type | Arboreal with heavy ventilation |
| Substrate | Dry substrate, 1-2 in |
| Feeding | Small prey weekly; strong sling eaters |
| Care Difficulty | Spice 3: Intermediate |
| 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
- Compact secure enclosure while it's a tiny sling
- Vertical bark setup with heavy cross-ventilation, juveniles through adults
Warnings First
- Ventilation over humidity: the Avicularia-clade rule
- Fast and leap-prone. Never handle
- Slings sensitive to damp stagnant air
- Cross flow means low vents on one wall and high vents on the opposite wall, so air crosses diagonally rather than sitting in the lid.
Simple Care
- Vertical enclosure, dry substrate, a water dish, strong cross-ventilation.
- Vents low on one wall and high on the opposite wall so air enters at substrate level and exits above the retreat.
- Occasional water droplets on the webbing, then dry out.
- Shallow water dish with pebbles in it so slings cannot drown.
- Cork and foliage near the top; expect heavy webbing.
Advanced Keeper Notes
Enclosure & Microclimate
- Y. diversipes (Amazon pinktoe), Y. sooretama, Y. gamba: Brazilian Atlantic forest, split from Avicularia in 2017. Care is the Avicularia/Caribena template: vertical, dry-substrate-plus-water-dish, abundant cross-ventilation.
- Handles a bit more moisture than Caribena versicolor. Same failure mode: stagnant damp air, especially for slings.
- Because the failure mode is identical, the ventilation geometry is too. Put vents low on one wall, at or just above the substrate, and more high on the opposite wall, so air enters low, crosses diagonally, and leaves above the webbed retreat. Lid-only venting leaves damp air standing at substrate level, which is where the mold and the sling losses happen regardless of how forgiving the genus is.
- Treat ventilation and humidity as one dial pushed toward air. Skip the ambient target entirely: dry substrate, a permanent water dish, occasional droplets on the webbing, and full dry-back between mistings.
- Judge by drying behavior, not by a gauge. Webbing should be dry within a few hours of misting and there should be no condensation on the walls. If the enclosure holds condensation, add ventilation rather than cutting back the water.
- Keep the water dish shallow and packed with pebbles or coarse grit so the waterline sits below the rim. Slings drown in open dishes, and the entire dry-substrate strategy depends on drinking water being permanently and safely available. A bottle cap with grit is right for sling cups.
- The microclimate is vertical here. Let the dish or one slightly damp lower corner feed moisture upward through moving air while the retreat near the top stays dry. Do not mist into the webbed retreat itself; a damp tube with still air in it is the condition that kills pinktoe slings.
Feeding, Growth & Maintenance
- Strong eaters as slings; small prey weekly, leftovers removed promptly.
- Web-loving: they'll build extensively, so give plenty of anchor points up high.
- Molting: a premolt pinktoe turns sluggish, sits tight in its silk retreat, and refuses food for days or even weeks. Pull any uneaten feeders, leave it strictly alone, and wait 5-10 days after the molt (until the new fangs and exoskeleton harden) before feeding again.
Possible Origin / Range
- Likely native range: Brazilian Atlantic forest.
- Habitat translation: Vertical, heavily cross-ventilated arboreal enclosure with dry substrate, a water dish, cork and foliage up high, and occasional web droplets rather than misting.
Advanced Keeper Details
- Adult size ~4.5-5.5 in DLS; medium growth; lifespan in the Avicularia-clade range (females ~10 years).
- A good Avicularia-clade species once you have the dry substrate and heavy ventilation dialed in.
- Like all Aviculariinae, docile but fast and jumpy; sheds setae directly rather than flicking them. No handling.