Vampire crab
(Geosesarma sp.)

In the wild, the vampire crab lives in warm, moist areas. In their aquaterrarium (or paludarium), they need the same atmosphere. To achieve this, close your tank tightly. Your lighting system should generate some heat. To check if this is sufficient, invest in a small thermometer and check that the temperature is at 25°C (77°F). If not, install a small hot plate of a few watts on one of the walls or at the bottom of your aquaterrarium.

For a very humid atmosphere, the combination of temperature and water point should be sufficient to cause this ambient humidity. If this is not the case, spray manually once or twice a day with water at room temperature. Check your aquaterrarium for leaks, especially at the lid. As far as air renewal is concerned, it will happen when you open your tank for maintenance and feeding.

On the water point side, install a small water pump that will ensure a small stirring to avoid stagnant water. The use of osmosis water, even if it is not mandatory, will avoid lime scale. Check the water level regularly as the water will evaporate. As the vampire crab is not really an aquatic crab, this part of the aquaterrarium can be quite restricted: 75% soil for 25% water. Depending on the configuration of your terrarium, a shallow water bowl may be sufficient. Indeed, in too much water, these crabs can drown! In any case, the height of your aquatic part will be rather low!

For the ground, install a drainage layer of coarse gravel or pozzolana. Cover with a thick layer (enough for the crabs to dig in) of sand or coconut mix and a few pebbles. Always litter the ground with dead leaves.

Finally, the decoration must be rich in hiding places, essential to reassure these shy adults. Plants, rocks and roots will form natural shelters that are much appreciated!