Small Hermit Crab

Common Name: Small Hermit Crab
Scientific Name: Various species (e.g., Clibanarius spp.)
Coloration: Varied; often brown, red, or blue with banded legs
Movement: Active crawler, frequently changing shells as it grows
Preferred Habitat: Rocky reef flats, sandy shallows, and rubble zones
Diet: Algae, detritus, leftover food, and film on surfaces
Ecological Role: Omnivorous scavenger; contributes to algae control and nutrient recycling
Compatibility: Suitable for the Living Ecosystems Aquarium, especially in reef setups with multiple grazing species

Small Hermit Crabs are highly adaptable reef invertebrates known for their algae-eating and scavenging behavior. These crabs inhabit abandoned snail shells, using them as mobile protection while navigating the aquarium.

In nature, hermit crabs support reef function by consuming detritus, controlling algae, and recycling uneaten food. Their constant movement helps stir the substrate and reduce the buildup of waste.

In the Living Ecosystems Aquarium, they provide continuous grazing and clean-up services, particularly around crevices in the Living Blocks Reef where debris may accumulate. Providing spare empty shells allows them to grow safely.

Reproduction:
Reproduction requires marine plankton stages not typically supported in closed systems, so captive breeding is rare.