Not actually a lobsters, the red squat lobster is closely related to porcelain crabs. The squat lobster (Galathea balssi) is very discreet, never exploring more than a couple inches away from its shelter. Ususally taking refuge within a cave.
The red squat lobster can be found in the shallow coral reefs of Indonesia. They live among the live rock and coral and can sometimes be found as hitchhikers on uncured live rock. They often live among Crinoid feather sea stars, which they use for camouflage as well as for sustenance by stealing their food. Fortunately, they do not require these sea stars to thrive in captivity. Due to their small size and somewhat timid nature, they prefer an aquascape with ample live rock with many crevices and small caves. Once they become comfortable in their surroundings they will be seen more actively in the tank.
This tiny creature makes an interesting addition to a home aquarium as they are both filter feeders and opportunistic scavengers. Their red colouration also adds a welcome splash of colour to any tank. Like other carnivorous scavengers, they can help rid the tank of meaty leftover foods through their foraging. They can also be spot fed plankton and this is, in fact, recommended. They will also eat chopped squid or other meaty foods. Despite its small size the red squat lobster can be aggressive towards others of its own species so unless a hobbyist can obtain a mated pair it is recommended they be kept singly, except in very large tanks where each one can have its own territory. Like most invertebrates they are not tolerant of copper based medications. The red squat lobster, with its bright colouration and unique feeding style, makes an interesting addition to any home aquarium.