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Atlas / Library / Sesarmidae / Thai Vampire Crab (native Geosesarma)
Intermediate
Sesarmidae

Thai Vampire Crab (native Geosesarma)

Geosesarma krathing / serenei / todaengปูแวมไพร์

Part of this is not on the page we cite. We opened it on 10 Aug 2026 and some of the degrees above are not stated there. 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: Ian Dugdale · 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.

Semi-terrestrial · temperate · humidFrom the sheet: 24–28°C, humidity 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/geosesarma-krathing-serenei-todaeng

‹ All husbandry guides
Temperature24–28 °C
Humidity75 %
Diet1–2 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

75%Target RH

The sheet states75%+

Enclosure
Paludarium ~40 L, ~80% land : 20% freshwater

Identity

Adult size

1.75 m1–2 cm
1520100400 cm
1–2 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
Decapoda
IUCN / CITES
Not evaluated; range-restricted Thai natives; conservation-sensitive
Difficulty
Intermediate
Commonality
Rare; mostly wild Thai endemics, little in trade
Adult size
~1–2 cm carapace
Lifespan
2–3 yrs (est.)
Growth rate
Moderate
Activity & niche
Semi-terrestrial freshwater swamp-forest crab
Temperament
Shy, secretive
Venom / defense
Harmless to humans; small pinch

Enclosure and conditions

Temperature
24–28°C
Humidity
75%+
Min. enclosure
Paludarium ~40 L, ~80% land : 20% freshwater
Substrate
Coco peat + sphagnum; damp swamp-forest style
Hides / decor / water
Leaf litter, roots, driftwood, live plants; shallow freshwater

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

every 1–2 dAs the sheet states
28Meals in 28 days

Twenty-eight days, one row. Each band is a meal window.

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.

The sheet statesBloodworms, dried shrimp, insects, veg, leaf litter · Every 1–2 days

Staple food
Bloodworms, dried shrimp, insects, veg, leaf litter
Feeding frequency
Every 1–2 days
Supplements
Cuttlebone / calcium for molting

Behaviour and handling

HandlingMinimal; best observed
CommunalYes – 1 male : 2+ females with ample hides
Defense / stress signsHiding, claw display, failed molts

Reproduction

Life course

Day 0Hatch
2–3 yrLifespan in care
2 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
Direct development: female broods and releases miniature crabs

Common health problems

Common health issues
SignsFailed molts, drowning, aggression
Red flags / quarantine
SignsConservation-sensitive; discourage wild collection; quarantine

Good to know

  • G. todaeng (2023) lives in the root systems of Lum Phee palms in a Narathiwat swamp forest.

What it needs

A thermometerbecause temp24-28°C
A hygrometerbecause humidity75%+
Not stated: The size of the enclosurethis sheet describes the enclosure without a figure: « Paludarium ~40 L, ~80% land : 20% freshwater »

Every line above is deduced from a value this sheet states, and names which one. Nothing here is a general recommendation. What the sheet does not state is listed too, rather than left out: a kit that looks complete is worse than one that names its gap.

Sources

Others in this group

What this sheet states

85%
TemperatureHumidityEnclosure sizeActivityOriginDietSourcesUVB

This sheet states 6 of 7 of the fields this product runs on. What is missing turns something off: day/night engine and awake count on the globe. We show the gap rather than fill it with a plausible number.

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.