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Reef Safe Hermit Crabs

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Not all Hermit Crabs are considered to be safe for reef tanks. Many Hermit Crabs will destroy corals, eat fish, or other invertebrates. Growing Hermit Crabs are always on the lookout for a larger shell to settle in.

These hermits are considered to be reef safe janitors.

1. Dwarf Blue Leg Hermit Crab

Madelyn Catob's Blue Legged Hermit Crab
Madelyn Catob
The Dwarf Blue Leg Hermit Crab (Clibanarius tricolor) is a great addition to a saltwater aquarium because it eats many kinds of algae, including red slime algae (cyanobacteria), and sifts the sand, as well.

2. Dwarf Red Tip Hermit Crab

The Dwarf Red Tip Hermit Crab (Clibanarius sp.) is a great addition to a saltwater aquarium because it eats many kinds of algae, including red slime algae (cyanobacteria), and sifts the sand, as well.

3. Dwarf Yellow Tip Hermit Crab

The Dwarf Yellow Tip Hermit Crab (Clibanarius sp.) is a great addition to a saltwater aquarium because it eats many kinds of algae, including red slime algae (cyanobacteria), and sifts the sand, as well. It's small size (to 1") allows it to get into all of the nooks and crannies in a reef tank.

4. Dwarf Zebra Hermit Crab

Dwarf Zebra Hermit Crab
Photo by Joe Martin
The Zebra Hermit Crab (Calcinus laevimanus) is a great addition to a saltwater aquarium because it eats many kinds of algae, including red slime algae (cyanobacteria), and sifts the sand, as well.

5. Electric Blue Hermit Crab

The Electric Blue Hermit Crab (Calcinus elegans) is a great addition to a saltwater aquarium because it eats many kinds of algae, including red slime algae (cyanobacteria), and sifts the sand, as well.

6. Electric Orange Hermit Crab

Photo by Keoki Stender
The Electric Orange Hermit Crab (Calcinus sp.) is a great addition to a saltwater aquarium because it eats detritus, uneaten food and many kinds of algae, including red slime algae (cyanobacteria), and sifts the sand, as well.

7. Halloween Hermit Crab

Photo by Larry Yarbray
The Halloween Hermit Crab (Ciliopagurus strigatus) is a great addition to a saltwater aquarium because it eats detritus, uneaten food and many kinds of algae, including red slime algae (cyanobacteria), and sifts the sand, as well.

8. Left-Handed Hermit Crab

Photo by Keoki Stender
The Left-Handed Hermit Crab (Calcinus laevimanus) is so named because its left claw is considerably larger than its right. Found in Hawaii and the rest of the Pacific Ocean, this terrific little reef safe crab spends its time seeking out algae (even Red Slime Algae), detritus and decaying material.

9. Scarlet Reef Hermit Crab

Scarlet Reef Hermit Crab
Photo by Craig Smith
The Scarlet Reef Hermit Crab (Paguristes cadenati) is a great addition to a saltwater aquarium because it eats many kinds of algae, including red slime algae (cyanobacteria), and sifts the sand, as well.

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