Strawberry Crabs are popular with aquarists, as they are a peaceful yet shy creature seldom seen during the day. The strawberry crab is an omnivore, eating algae and leftover food bits. Because of its small size and peaceful disposition, this animal is considered reef safe, i.e. generally safe for reef aquaria. However, because of its especially shy nature and small size, from the aquarist's standpoint, the strawberry crab is not suited to large reef aquaria because of its tendency to simply disappear in larger tanks and never be seen again. In captivity it needs to be provided with a decent amount of micro algae which is the moss-like algae that grows on live rock. This is the same algae that many small reef-safe hermit crabs eat. Micro algae is sometimes hardly visible so don't mistake it for the large more plant-like macro algae which most small inverts do not eat, i.e. strawberry crabs. Most do well with other similar sized inverts however some large fish may eat strawberry crabs and of course other small inverts. As with other less commonly kept inverts you should keep and eye out for its temperament with other inverts for the first couple weeks. As with all saltwater captive life including of course corals etc. there are always first times for known troubles.