hermitcrab

Scientific Name: Unknown (likely from the family Diogenidae or Paguridae)
Common Name: Hermit crab

Size: Less than 2 cm including legs
Depth Range: 1 – 30 m
Habitat: Found on rocky reef surfaces and coral rubble, often tucked away in crevices or sheltered by algae
Diet: Omnivorous scavenger—feeds on organic detritus, microalgae, and small invertebrates
Reproduction: Separate sexes; females carry fertilized eggs in their abdomen until hatching into planktonic larvae
Fun Fact: Despite its small size, this hermit crab carries a perfectly fitted shell and shows all the big personality of its larger cousins. Some species this small even rely on cryptic coloration to blend into the reef.

Observation Tip: Look closely along algae-covered rocks and rubble at night—these tiny hermit crabs are easy to miss but often active under torchlight.