Nhandu carapoensis
Brazilian Red Tarantula: Advanced Care Guide
Keeper Snapshot: A rarely kept New World terrestrial with limited species-specific literature but enough direct keeper evidence for an operational plan. Keep this fella at 73-80F in a low terrestrial enclosure with deep form-holding substrate, a secure hide, most of the surface dry, one lightly moist lower area, strong cross ventilation, and a full pebble-filled dish. Use the measured 2.5-3 in grow-out lane for this arrival regardless of formal life stage. Use tongs and a catch cup because direct institutional records report particularly irritating hairs. Keep it spicy. - Big Z
Group: TarantulasDifficulty: Spice 3: IntermediateSetup: Terrestrial with deep substrate and a secure ground-level retreatHandling: Not recommended. Catch cup transfers 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 | 73-80F working daytime range, with an ordinary room-night range of 68-73F acceptable. Herpeton Academy gives 23-27C days and 20-23C nights for Nhandu carapoensis. Stable room warmth is preferable to a concentrated hot spot; do not force a nightly drop. |
|---|---|
| Humidity | No numeric % target. Manage by method: keep most of the surface dry, maintain a visibly darker and lightly moist lower area in one part of the substrate, cross-ventilate at substrate level, and keep a pebble-filled water dish full. Add water to the substrate rather than spraying the animal. |
| Setup Type | Terrestrial with deep substrate and a secure ground-level retreat |
| Substrate | Deep, firmly packed coco and topsoil or another additive-free soil-based mix that holds a retreat. For the supplied 2.5-3 in grow-outs, fill about 1/2 to 2/3 of a low enclosure. For larger animals, keep the same fill fraction and provide at least 5 in of packed substrate, with more when needed to keep the fall zone low and the hide stable. |
| Feeding | Spiderlings: small prey twice weekly. Supplied 2.5-3 in grow-outs: one appropriately sized cricket or roach every 7 days. Larger adults: one suitable meal every 10-14 days. Keep prey no longer than the spider's body, reduce frequency when the abdomen is already broad, remove uneaten prey within 24 hours, and withhold prey through premolt and until the fangs are dark and the exoskeleton is firm after a molt. |
| Care Difficulty | Spice 3: Intermediate |
| Handling | Not recommended. Catch cup transfers 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
- Spiderling: compact enclosure with openings too narrow for the spider to pass, reachable prey, and stable partial moisture
- Juvenile: low terrestrial grow-out with deep packed substrate and a secure hide
- Adult: low horizontal enclosure with deep substrate; exact size should be based on the measured animal, not an unverified species maximum
Warnings First
- Catch cup transfers only. The institutional husbandry manual reports particularly irritating hairs from N. carapoensis, and current keeper sources describe hair kicking and defensive or nervous behavior
- Keep maintenance low to the ground. A heavy-bodied terrestrial can be injured in a fall
- Published humidity numbers conflict from 40-50% to 65-80%. Do not chase a gauge. The operating decision is a dry surface, one lightly moist lower area, a full dish, and strong airflow
- Keep pebbles in the water dish so the waterline stays below the rim. This reduces risk but does not make a dish risk-free
- Remove live prey before a molt and remove any uneaten prey within 24 hours
Simple Care
- Maintain 73-80F without a concentrated hot spot.
- Use a low horizontal enclosure with deep, firmly packed substrate and an anchored cork hide over a started retreat.
- Keep most of the surface dry and maintain light moisture lower in one corner. Add water to the substrate, not over the spider.
- Cross-ventilate low on two opposite walls at substrate level.
- Keep a pebble-filled water dish full on the drier side, away from the retreat entrance.
- Use the measured-size feeding lane and adjust by abdomen condition. Pull uneaten prey within 24 hours.
- Stage a catch cup before opening the enclosure and use tongs for maintenance.
Advanced Keeper Notes
Enclosure & Microclimate
- Species-specific sources agree on a low terrestrial setup with floor space, a full-body shelter, and deep substrate the spider can reshape. Herpeton Academy recommends 12-15 cm or more for adults, while Tarantula Den and Grimoire give 4-5 in and 4-6 in. The guide therefore chooses at least 5 in for larger animals plus a 1/2 to 2/3 enclosure fill and low-fall-zone test. The supplied 2.5-3 in animals use the same fill fraction scaled to their grow-out enclosure.
- Use coco fiber and topsoil or another additive-free soil mix that holds shape when packed. Anchor the hide so excavation cannot shift it. The institutional manual documents captive N. carapoensis moving considerable amounts of soil, directly supporting a stable workable substrate column.
- The Australian Reptile Park manual lists 40-50% for N. carapoensis and describes adding water to the back of its enclosure, while Herpeton Academy gives 65-80% with only part of the substrate moist. Retailer figures also span 60-80%. Because the gauge values conflict, use the shared physical method: most surface dry, one visibly darker lower area, a full dish, and strong cross ventilation.
- Ventilation and dish placement follow Big Z's house standard. Put low vents on opposing walls. Keep the pebble-filled dish on the drier side and away from the retreat mouth so a spill does not drain into the spider's chosen shelter. If targeted moisture is needed, add it under the hide or into the substrate, never over the animal.
Feeding, Growth & Maintenance
- The working cadence is conservative synthesis. Tarantula Den gives spiderlings 2-3 meals weekly, juveniles weekly, and adults every 10-14 days. Grimoire gives juveniles every few days and adults every 1-2 weeks. Herpeton Academy says adults generally do well every 7-14 days or longer when the abdomen is already full. The operating lanes are twice weekly, every 7 days, and every 10-14 days.
- Use prey no longer than the spider's body, and pre-kill prey over about 2/3 of a small sling's size. These physical ratios are more useful than an invented species-specific inch measurement.
- Use crickets, roaches, or similar captive-bred invertebrate prey. Remove uneaten prey within 24 hours and remove all live prey when premolt behavior appears. The institutional manual warns that crickets can attack a molting tarantula's soft cuticle.
- After a molt, wait until the fangs are dark, the exoskeleton is firm, and the spider is moving normally before offering food. Those physical checks replace an unsupported species-specific countdown.
Possible Origin / Range
- Likely native range: Brazil and Paraguay, per World Spider Catalog. The supplier did not provide a locality for the purchased animal, so no finer arrival-locality claim is made.
- Habitat translation: Low terrestrial enclosure, form-holding deep substrate, secure ground-level retreat, mostly dry surface with light moisture lower in one area, strong cross-ventilation, and a pebble-filled dish away from the retreat. This is a clearly labeled synthesis of captive husbandry evidence and Big Z's house standards, not a claim about an unverified supplier locality.
Advanced Keeper Details
- World Spider Catalog accepts Nhandu carapoensis Lucas, 1983, lists it as the type species of Nhandu, gives Brazil and Paraguay as its distribution, and records Nhandu tripartitus Schmidt, 1997 in its taxonomic history as a synonymized name.
- The identity artifact supplies no locality. Earlier draft claims about Caarapo, exact coordinates, seasonal forest, regional rainfall, and the species epithet were not part of the supplied identity evidence and are omitted.
- Kaderka et al. examined type I urticating setae in N. coloratovillosus and N. tripepii, not N. carapoensis. The institutional manual separately reports a keeper's direct reaction to hairs from N. carapoensis, and Tarantula Den says it readily kicks irritating hairs. The guide therefore warns about the observed exposure risk without assigning a setal type.
- Retailer claims for adult leg span, growth, and lifespan conflict and are unnecessary for operating care. Enclosure and feeding choices use the measured animal, substrate fill, fall zone, and abdomen condition instead.