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Blue-Leg Hermit Crab
Hermit crab

Blue-Leg Hermit Crab

Clibanarius tricolor

The default dwarf hermit in nearly every cleanup-crew pack — a tireless scavenger that picks film algae and leftover food out of crevices nothing else reaches. The catch is the shell: a blue-leg will evict and kill snails for a better one, so keep a stash of empty shells of varying sizes and stock conservatively. It will not eat coral, though its pointed legs can keep a frag retracted if it climbs the same colony every night.

Temperament
Peaceful
Max size
1"
Min tank
10 gal
Reef-safe
Reef safe
Diet
Omnivore
Zone
Sand bed, Rockwork
Usually kept in numbers — scale the crew to the tank, not to the shopping list.
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Tankmates

How Blue-Leg Hermit Crab gets on with the rest of the reef, checked pair by pair by the same engine as the live pre-flight.

Best kept apart

A real clash — aggression, predation or a same-genus fight.

Sixline WrasseSixline Wrasse hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Leopard WrasseLeopard Wrasse hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Melanurus WrasseMelanurus Wrasse hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Yellow Coris WrasseYellow Coris Wrasse hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Coral HawkfishCoral Hawkfish hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Red Coris WrasseRed Coris Wrasse hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Christmas WrasseChristmas Wrasse hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Antennata LionfishAntennata Lionfish hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Picasso TriggerfishPicasso Triggerfish hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Queen AngelfishQueen Angelfish hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Raccoon ButterflyfishRaccoon Butterflyfish hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Pearlscale ButterflyfishPearlscale Butterflyfish hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Ornate Leopard WrasseOrnate Leopard Wrasse hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Dragon WrasseDragon Wrasse hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Divided Leopard WrasseDivided Leopard Wrasse hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Valentini PufferValentini Puffer hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Volitans LionfishVolitans Lionfish hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Zebra Dwarf LionfishZebra Dwarf Lionfish hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Fuzzy Dwarf LionfishFuzzy Dwarf Lionfish hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.Snowflake MoraySnowflake Moray hunts small cleanup-crew inverts — your Blue-Leg Hermit Crab is on the menu.