Anemone Crab
(Neopetrolisthes maculatus)

The presence of large, well-developed anemones is mandatory for its proper maintenance. Note that this is not a symbiotic relationship (in which each species takes advantage of the presence of the other) but rather a carposit (only one of the species benefits from cohabitation): the anemone protects the Anemone Crab from predators but does not benefit from its presence. However, the crab does not harm its anemone.

Given its lifestyle in a natural environment, maintenance in pairs is ideal. Be careful because two specimens of the same sex do not support each other (this is particularly true for females which can be quite aggressive in them). At the time of your purchase, do not rely on the size which can sometimes mislead you (females are a little larger than males, but this is valid for perfectly adult crabs). Take rather 2 crabs cohabiting in the same anemone: it is sure that it is a couple!

As a refuge, each crab will ideally have its own anemone (but one may be enough for an established couple). You can install them with Heteractis, Stichodactyla or Entacmaea. In aquariums, the crab can also be satisfied with Rhodactis but with less enthusiasm.

This crustacean does not pose any problem of cohabitation because it is simply ignored by fish and Hermit Crabs when it is in an anemone. Beware all the same of the competition from clownfish which can compete with the host anemone to the detriment of the Anemone Crab.