KeeprHusbandry You're a Pro? Click here to meet Rex
Atlas / Library / Theraphosidae / Brazilian Giant White Knee
BeginnerNocturnal · sleeping now
Theraphosidae

Brazilian Giant White Knee

Acanthoscurria geniculata

The page we cite does not state this figure. We opened it on 10 Aug 2026 and it gives no temperature for this species at all. The values above may still be right, but we cannot show you where they came from, and nobody here has checked them against a second source. Anything about a sick animal goes to a qualified exotic vet, not to a page. tomsbigspiders.com

Photograph: Sidnei Dantas · CC BY-SA

Photographed by an observer on iNaturalist and published under a Creative Commons licence; the photographer and the licence are named under the image. It is not an animal of ours, and no animal was handled by us to produce it.

14:00
Day

Drag the sun. Brazilian Giant White Knee is nocturnal, so what it is doing changes with the light.

Terrestrial · temperate · humidFrom the sheet: 24–28°C, humidity 65–75%

The way of life is written in this sheet, word for word. The climate words summarise the two figures above them, they do not add to them.

National law is not global, and we hold no national wildlife law for any country, Thailand included. Check your own authority before buying or selling.

Back to the globe My keep

https://keepr.pet/husbandry/en/acanthoscurria-geniculata

‹ All husbandry guides
Temperature24–28 °C
Humidity65–75 %
Enclosure40×30×30
Diet7–10 days

The numbers

Temperature

152025303540 °C
24–28°Ambient

One ambient band, 24–28°C. This sheet states no warm side, no cool side and no night figure, so none are shown. Same scale on every sheet here, so two species compare by eye.

The sheet states24-28 °C

Humidity

65–75%Target RH

The sheet states65-75%

Identity

Adult size

1.75 m18–22 cm
1520100400 cm
18–22 cmNose to tail, adult

The size the sheet states for a grown animal.

Why

Two drawings, because they answer two questions. The silhouette is at true scale against a 1.75 m person: it says how big this animal actually is, which no number does for someone who has never seen one. The bar under it is logarithmic and shared by every sheet here, so a 2 cm isopod and a 4 m python both stay readable on the same axis and two species can be compared at a glance.

Order / Family
Araneae
IUCN / CITES
Not evaluated; CITES not yet in our data
Difficulty
Beginner
Commonality
Very common in SEA/Thai trade
Adult size
18–22 cm legspan
Lifespan
F 15–20 yr / M 3–5 yr
Growth rate
Fast
Activity & niche
Nocturnal · Terrestrial
Temperament
Bold, defensive, voracious
Venom / defense
Urticating hairs (mild venom)

Enclosure and conditions

Enclosure

substrateclimbing branchwarm hidewater65–75 % RH40 cm30 cm
warm hideclimbing branchwatersubstrate
50100150200 cm
40 × 30 × 30 cmWidth × depth × height
12dm² of floor
Warm side: not in our dataUVB: not in our data

Drawn from the stated numbers. Only what the sheet states is drawn inside.

Why

The rectangle carries the exact width-to-height ratio of the figures above it, and the ruler under it places that width on the 0–250 cm scale every sheet here shares, so two species still compare at a glance. Nothing is added that the sheet does not name: a lamp drawn on a sheet that never mentions one would be invented equipment. What the sheet leaves out is listed rather than left blank, because an empty tank reads as « none needed ».

The sheet states40×30×30 cm floor space

Temperature
24–28 °C
Humidity
65–75%
Min. enclosure
40×30×30 cm floor space
Substrate
Coco fibre/peat, 10–15 cm
Hides / decor / water
Cork-bark hide, large water dish

What your climate adds

This sheet states a range to hold. Your local climate decides how much work holding it is. Pick the nearest city: nothing is sent anywhere, the choice stays in this browser.

Diet

Feeding rhythm

Juvenile
every 3.5 d
Adult
every 7–10 d
4Meals in 28 days · adult

Twenty-eight days, one row. Each band is a meal window. This sheet states a figure for each age, so each age has its row.

Why

The windows widen as they go because the interval is a range: four meals after a 10–14 day cycle land anywhere between day 40 and day 56. A young animal's row is drawn only where the sheet gives one: working it out by dividing the adult interval would be inventing a ration.

The sheet statesLarge roaches, crickets, locusts · Adults every 7–10 d; juveniles 2×/wk

Staple food
Large roaches, crickets, locusts
Feeding frequency
Adults every 7–10 d; juveniles 2×/wk
Supplements
None (whole prey)

Behaviour and handling

HandlingDiscouraged (defensive, kicks hairs)
CommunalNo (cannibalistic)
Defense / stress signsHair-kicking, threat posture, striking at prey/tongs

Reproduction

Life course

Day 0Hatch
15–20 yrLifespan in care
15 yrMinimum commitment
Sexual maturityNot in our data

Read from the lifespan and maturity the sheet states, for animals in care and not in the wild.

Why

The minimum commitment is the low end of that lifespan, and the reproductive window is what is left after maturity: both are subtractions on stated figures, not figures of their own.

Reproduction
M mature 1.5–2 yr; ventral sexing; 1 sac ~500–1500 eggs

Common health problems

Common health issues
SignsDehydration, fall injury, DKS, bald patches
Red flags / quarantine
SignsCurled legs, lethargy, no feeding, oral/anal fluid, mites; quarantine 30–60 d

Good to know

  • Bold white 'knee' bands; a voracious display star

What it needs

Enclosure at least 40 × 30 × 30 cmbecause enclosure40×30×30 cm floor space
A thermometerbecause temp24-28 °C
A hygrometerbecause humidity65–75%

Every line above is deduced from a value this sheet states, and names which one. Nothing here is a general recommendation.

Sources

Others in this group

What this sheet states

100%
TemperatureHumidityEnclosure sizeActivityOriginDietSourcesUVB

Every field this product runs on is stated here. That is not a claim that the values are right: it says what the sheet states, not whether it is true. Whether a human has read it is the badge at the top of this page.

UVB is measured but does not count: it is absent from 421 of 678 sheets, and on most of them that is not a gap, since a nocturnal snake's sheet has no reason to state a UV index. Counting it would call the library incomplete without cause.