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Orchid Vampire Crab - Geosesarma dennerle 'Orchid' (Captive Bred)

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About This Product

Check out our Vampire Crab podcast and more on our YouTube channel!


  • Hardy and easy to establish
  • Make unique pets
  • Social animals that do best in small groups

Name: Geosesarma dennerle ‘Orchid’ or the Orchid Vampire Crab. This species is named after Dennerle, the aquarium supply company, which supported the study of these creatures in Java.

Recommended Enclosure Size: A 10 gallon aquarium is suitable for 1-3 crabs. 20-30 gallons (18x18x18) would be ideal for 3-5 crabs.

Enclosures should be roughly 80% land and 20% water. The water should at least be 2-3 inches deep to ensure your crabs are able to molt safely. Tropical BioBedding makes a great substrate for the land portion of your setup.

Cork bark, live oak bark, and manzanita are beneficial decorative & hardscape additions that double as climbing items for your crabs. Botanicals are attractive decor items that not only look great in a vivarium, but they also release tannins into the water, which have antibacterial properties and may even lower the pH levels in your water.

Vampire crabs will appreciate java moss and other live moss to graze upon, and they also add a spash of color to your paludarium!


Temperature (°F): 70-82 degrees 

Humidity: 40-60% 

Size: At the time of sale, these will be at least 1/4 inch.

Age: On average, vampire crabs live for 2-3 years.

Feeding: These crabs eat commercial fish diets, dried shrimp, and live insects.

Sexing: Males will typically have larger claws and brighter colors, however the sure-fire way to determine your crab’s sex is to check their pleon, or underside. 

Females will have a wide oval shaped plate covering their underside whereas males will have a tapered, almost triangular, cover.

Social Behavior: Vampire crabs will get along fine in small groups where females outnumber males—we recommend 1 male to 2-3 females. Males will fight and should be housed separately if the enclosure or group is not large enough. 

Vampire crabs are also known to attack members of different species of crabs, and for this reason they are recommended as a species-only setup.

Color/Pattern: Orchid crabs have bright yellow eyes, purple or pink claws and face, a brown back and powder blue legs.

Note: Each crab is unique and may vary slightly from photos and descriptions.

Breeding: Vampire crabs will often breed readily in properly set-up colonies or enclosures. During this process, the male will climb on top of the female to fertilize the eggs, and the female will carry them (~20-80 eggs) for around a month. Once they hatch, there will be fully-formed baby crabs running around! Babies are very independent, though some may stay around mom for a bit. 

We recommend housing babies separately after hatching, as vampire crabs are often cannibalistic given the opportunity. A tank with ample hiding spots is their best bet at survival!

Natural Range: These crabs are native to southeast Asia

Still not sure if a Vampire Crab from Josh's Frogs is the right pet for you? Read the reviews below and see what other customers are saying!


After placing an order containing a live animal, you will receive a scheduling email containing our JotForm scheduling link to schedule your new pet's delivery date.

With this scheduling link, you will be able to schedule your order's delivery up to 30 days in advance. You will be able to choose a date of delivery for Tuesday-Saturday (Saturday arrival depends on the carrier's service availability) with the estimated time of arrival generally being 12pm, or 4:30pm for more rural areas. Overnight lows must be above 40°F to ship directly to you (or above 30°F for FedEx Ship Center pickups) as well as below 90°F by estimated time of arrival.

If you require further assistance, or prefer to talk to one of our Customer Service agents, please feel free to reach out to our [email protected] email or our phone line 1-800-691-8178.

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