As a voracious scavenger, this omnivore can get into the smallest crevices and openings within live rock to consume nuisance algae including hair algae and cyanobacteria. While doing so, Clibanarius tricolor also helps aerate sand substrate, thereby encouraging growth and activity of beneficial bacteria. Supplement the diet of the Dwarf Blue Leg Hermit Crab with dried seaweed if insufficient algae are present. Though an efficient scavenger, and due to its small size, the Dwarf Blue Leg Hermit Crabs should be kept in groups for larger aquarium systems.