Nhandu cerradensis
Brazilian Red Hair - complete care guide
Often searched as: Nhandhu cerradensis.
Brazilian Red Hair
Temperature
24-28 °C
Target ambient range
Humidity
65-80 %
Substrate / enclosure RH
Adult DLS
15-20 cm
Average - varies per individual
Moult interval
Sling 3-5w - Juv 1.5-2.5mo
Adult 8-13mo
Adult cycle = mature females; males never moult again after maturity
About
The Brazilian Red Hair is a Cerrado savanna giant - long, dense red setae over a dark frame, with juveniles showing a subtle blue sheen and creamy leg striping that fades to red-brown as they grow. Described by Bertani in 2001 and newly back in UK culture after years of absence, it grows fast, eats ferociously and flicks urticating hairs at essentially no provocation - a spectacular display species for keepers who respect the kick. Slings run £25-40 with 7 cm juveniles around £60. Not to be confused with the Brazilian Giant Blonde (Nhandu tripepii) - the trade names get swapped constantly.
Husbandry cheat sheet
- Origin
- Brazil (Cerrado savanna - Mato Grosso / Goiás)
- Habitat
- Open savanna grassland - shallow burrows under rocks and roots
- Temperament
- Defensive
- In your collection
- 0
Growth, lifespan & conservation
- Growth rate
- Fast
- Maturity
- ♀ 30mo ♂ 24mo
- Lifespan
- ♀ 18yr ♂ 4yr
- Continent
- South America
- UK availability
- Uncommon
Care Guide
Nhandu cerradensis
Brazilian Red Hair - a complete husbandry sheet. Use as a starting point and adjust to your individual specimen.
What size enclosure does a Brazilian Red Hair Tarantula need?
Adults
45 × 30 cm low terrestrial with deep substrate.
Slings & Juveniles
Medium tubs with 5-10 cm substrate and an anchored cork piece.
To map exact floor space and substrate safety limits for your setup, use our free interactive tarantula enclosure planner.
What temperature and humidity does a Brazilian Red Hair Tarantula need?
Heating
24-28 °C. Genuinely warm-appreciating; a side mat on a thermostat suits the savanna origin.
Humidity
65-80 % as a gradient - damp lower substrate, dry walking surface, good airflow.
Ventilation
Good cross-flow. The Cerrado origin means they appreciate airflow over constant saturation.
What substrate is best for a Brazilian Red Hair Tarantula?
Recommended Mixes
Depth
10-15 cm
Notes
Coco fibre / topsoil, packed firm - they dig shallow scrapes and remodel decor.
How do you set up a Brazilian Red Hair Tarantula enclosure?
Décor
The Hide
A heavy cork bark piece wedged stable - they bulldoze loose decor, so anchor everything.
Water
Shallow dish, always full - overflowing it slightly maintains the damp depths.
Lighting
Ambient room light; they tolerate being visible once settled.
How often should you feed a Brazilian Red Hair Tarantula?
Good Feeders
Long refusal worrying you? Separate premoult fasting from genuine problems with our "Is my T okay?" checker.
Is my Brazilian Red Hair Tarantula dying or moulting?
Pre-moult signs to look for
Refusing food for weeks is normal before a moult - a healthy Brazilian Red Hair Tarantula fasting is almost never an emergency in itself. Watch for slowing down and spending more time in the hide, laying a thick moult mat of web on the floor. New World species like this one often show a bald spot on the abdomen that darkens to near-black as the new skin underneath readies - a darkening bald patch is a reliable countdown, not a disease.
On its back is MOULTING, not dying
A Brazilian Red Hair Tarantula lying upside down or on its side with legs curled inwards is almost certainly mid-moult. Do not touch it, do not right it, do not mist it - just remove any live prey (crickets can kill a defenceless moulter) and leave the room.
How long between moults?
For this species, expect a moult roughly every 20-35 days for spiderlings, every 45-75 days for juveniles, and every 120-220 days for sub-adults, with adult females moulting around every 8 months (up to 13.3 months at the extreme). Males never moult again after their ultimate (mature) moult.
After the moult: fang hardening time
The new exoskeleton stays soft, with fangs that cannot grip, for roughly 8 days in this species. Offer no food and no handling for about 8 days - feeding too early is how fresh moulters get injured. The shed exuvium is also the best sexing tool there is - see our tarantula sexing guide for what to look for.
Genuinely worried about behaviour that is not moulting? Our "Is my T okay?" triage tool walks the danger signs one by one.
What ongoing care does a Brazilian Red Hair Tarantula need?
🪞 Moulting
Fast growers moult frequently as juveniles - expect appetite swings and dark colour shifts before each one. They will often seal into a shallow burrow; do not excavate. Wait 7-10 days post-moult before feeding.
🧹 Cleaning
Spot clean boluses and refresh the water dish weekly. The drier surface keeps maintenance light.
✋ Handling
Not a handling species - defensive posture and hair-flicking come quickly. Catch cup only, gloves recommended.
What are the most common mistakes when keeping Brazilian Red Hair Tarantulas?
✓ What They Love
- Low, wide terrestrial setup - they are heavy and fast, falls are their enemy
- 10-15 cm of substrate with an anchored cork hide
- Warm (24-28 °C) with a humid gradient - drier surface, damp depths
- Gloves and eye protection for rehousing - the hairs are genuinely irritating
- Feed well and often - fast growth is the reward
✕ Common Mistakes
- Open-maintenance without protection - urticating hairs deploy at essentially no provocation
- Tall enclosures - a heavy terrestrial falling from height can rupture its abdomen
- Sopping-wet rainforest conditions - Cerrado species want a gradient, not a swamp
- Believing "Brazilian Giant Blonde" labels - that is N. tripepii, a different species
- Free handling - defensive and hair-flicky
Keep exploring: related care guides
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