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Blue Leg Hermit Crabs, also called Tricolor Hermits or Dwarf Blue Legs, are small but effective algae-eaters in marine aquariums, particularly for controlling hair algae, diatoms, and cyanobacteria. In the wild, they gather in large groups to feed on various algae, and they continue this behavior in reef tanks, helping to clean up algae and leftovers. Each crab typically has a shell size of 1/2" to 1".
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🇺🇸 Ship from USA · On Agora since 2025
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