Electric Blue Leg Hermit Crab (Calcinus elegans)
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The Electric Blue Hermit Crab, Calcinus elegans, has electric blue legs with black banding, and its antennae stand out with its bright orange color. The Electric Blue Leg Hermit Crab is a valuable addition to an aquarium because it will eat algae including green hair algae and cyanobacteria. In addition, it provides valuable aeration by sifting through the sand.