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Atlas / Library / Theraphosidae / Goliath Birdeater
AdvancedNocturnal · sleeping now
Theraphosidae

Goliath Birdeater

Theraphosa blondiบึ้งยักษ์กินนก

Traceable. The figures above appear in the page we cite, which we opened on 10 Aug 2026. That means you can check them, not that we have confirmed they are right. thetarantulacollective.com

Photograph: Kristof Zyskowski · CC BY

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. Goliath Birdeater is nocturnal, so what it is doing changes with the light.

Burrowing · temperate · humidFrom the sheet: 24–28°C, humidity 80–90%

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.

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https://keepr.pet/husbandry/en/theraphosa-blondi

‹ All husbandry guides
Temperature24–28 °C
Humidity80–90 %
Enclosure45×45×30
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

80–90%Target RH

The sheet states80-90%

UVB

Not needed for this species

Stated in the sheet, not inferred.

The sheet statesnot necessary (veterinary tarantula-group guidance, not species-specific)

Identity

Adult size

1.75 m25–30 cm
1520100400 cm
25–30 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
Advanced
Commonality
Occasional in SEA/Thai trade
Adult size
25–30 cm legspan
Lifespan
F 15–25 yr / M 3–6 yr
Growth rate
Fast
Activity & niche
Nocturnal · Terrestrial (deep burrower)
Temperament
Defensive, stridulates, kicks hairs
Venom / defense
Potent urticating hairs (mild venom)

Enclosure and conditions

Enclosure

substrateclimbing branchwarm hidewater80–90 % RH45 cm30 cm
warm hideclimbing branchwatersubstrate
50100150200 cm
45 × 45 × 30 cmWidth × depth × height
20dm² 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 states45×45×30 cm, deep moist substrate

Temperature
24–28 °C
Humidity
80–90%
Min. enclosure
45×45×30 cm, deep moist substrate
Substrate
Moist coco fibre, deep 20–25 cm
Hides / decor / water
Cork-bark hide, large water dish, sphagnum, high moisture

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

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

Behaviour and handling

HandlingNot recommended (very potent urticating hairs)
CommunalNo (cannibalistic)
Defense / stress signsLoud stridulation (hiss), vigorous hair-kicking, threat posture

Reproduction

Life course

Day 0Hatch
15–25 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 3–4 yr; ventral sexing; 1 sac ~50–200 large eggs

Common health problems

Common health issues
SignsDesiccation if too dry, fall injury, moult death if humidity low
Red flags / quarantine
SignsCurled legs, lethargy, no feeding; demands high humidity; quarantine 30–60 d

Good to know

  • Largest tarantula by mass; hisses via leg stridulation

What it needs

Enclosure at least 45 × 45 × 30 cmbecause enclosure45×45×30 cm, deep moist substrate
A thermometerbecause temp24-28 °C
A hygrometerbecause humidity80–90%
No UVB: the sheet states none is neededbecause uvbnot necessary (veterinary tarantula-group guidance, not species-specific)

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.