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Atlas / Library / Theraphosidae / Javan Earth Tiger
AdvancedNocturnal · sleeping now
Theraphosidae

Javan Earth Tiger

Selenocosmia javanensis

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. en.wikipedia.org

Photograph: Ganjar Cahyadi · 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. Javan Earth Tiger is nocturnal, so what it is doing changes with the light.

Burrowing · temperate · humidFrom the sheet: 24–28°C, humidity 70–80%

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/selenocosmia-javanensis

‹ All husbandry guides
Temperature24–28 °C
Humidity70–80 %
Enclosure25×25×30
Diet7–14 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 (75-82°F)

Humidity

70–80%Target RH

The sheet states70-80%

Identity

Adult size

1.75 m14–16 cm
1520100400 cm
14–16 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 (IUCN); CITES not yet in our data
Difficulty
Advanced (experts only)
Commonality
Uncommon – periodic Indonesian import
Adult size
Body ~6 cm; leg span ~14–16 cm
Lifespan
Females ~12–14 yr; males ~3–4 yr
Growth rate
Medium
Activity & niche
Fossorial burrower; nocturnal
Temperament
Fast and defensive; stridulates
Venom / defense
No urticating hairs; medically significant venom – experts only; fast and defensive

Enclosure and conditions

Enclosure

25 cm30 cm
warm hidewatersubstrate
50100150200 cm
25 × 25 × 30 cmWidth × depth × height
6dm² 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 statesAdult ~25×25×30 cm; deep substrate, fossorial

Temperature
24–28°C (75–82°F)
Humidity
70–80%
Min. enclosure
Adult ~25×25×30 cm; deep substrate, fossorial
Substrate
12–18 cm moist coco fibre/topsoil for burrows
Hides / decor / water
Starter burrow, cork, water dish; sphagnum for humidity

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 7 d
Adult
every 7–14 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 statesCrickets, roaches, locusts; occasional superworm · Slings 2–3×/week; juveniles ~weekly; adults every 7–14 days

Staple food
Crickets, roaches, locusts; occasional superworm
Feeding frequency
Slings 2–3×/week; juveniles ~weekly; adults every 7–14 days
Supplements
None – gut-load feeders only

Behaviour and handling

HandlingNot recommended – fast, defensive, potent venom; observation only
CommunalNo – solitary and cannibalistic
Defense / stress signsStridulation, threat posture, striking, bolting; no hair-kicking

Reproduction

Life course

Day 0Hatch
12–14 yrLifespan in care
12 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
Oviparous; 1 egg sac, ~50–100 spiderlings; medium-growth slings

Common health problems

Common health issues
SignsDehydration, poor molt if too dry, mold if over-damp, fall/rupture, DKS from pesticides
Red flags / quarantine
SignsOften WC – quarantine for mites/nematodes and dehydration; watch DKS, death curl

Good to know

  • A robust brown Javan fossorial; like its relatives it seals itself in a silk-lined burrow and ambushes prey at the entrance

What it needs

Enclosure at least 25 × 25 × 30 cmbecause enclosureAdult ~25×25×30 cm; deep substrate, fossorial
A thermometerbecause temp24-28°C (75-82°F)
A hygrometerbecause humidity70–80%

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.