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Blue Leg Hermit Crab (Clibanarius tricolor)

Find Blue Leg Hermit Crab across reef-livestock retailers and from fellow hobbyists on ReefDock. Compare sources, check live pricing where available, and review source-tank parameters on Reef-Trak-verified invertebrate listings before you buy.

Blue Leg Hermit Crab
Photo: (c) Dan Schofield, some rights reserved (CC BY), uploaded by Dan Schofield · cc-by
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Where to buy Blue Leg Hermit Crab

ReefDock searches the following reef retailers for this invertebrate. Click through to see the live price.

  • Saltwaterfish

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    Search Saltwaterfish
  • Amazon

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    Search Amazon
  • Petco

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    Search Petco

About Blue Leg Hermit Crab

Small hermit crab with bright blue legs and red/orange antennae and claws. The body is grayish, and the shell-bearing abdomen is typically housed in a snail shell that varies in color depending on the chosen shell.

Key facts

Family
Diogenidae
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.023-1.025
Appearance Description
Small hermit crab with bright blue legs and red/orange antennae and claws. The body is grayish, and the shell-bearing abdomen is typically housed in a snail shell that varies in color depending on the chosen shell.
Notes
• Minimum 20 gallon tank with plenty of live rock for grazing and hiding • Temperature range 72–78°F; maintain stable salinity 1.023–1.025 and pH 8.1–8.3 • Primary scavenger; feeds on algae, detritus, and uneaten food—generally a reliable cleanup crew member • Provide multiple appropriately-sized empty shells for changing as the crab grows • Generally peaceful but may scavenge or compete for food; avoid keeping with very small, delicate invertebrates
Max Size
1
Origin
Indo-Pacific region from the Red Sea to Hawaii, including the Caribbean.
Diet Details
Omnivorous scavenger; feeds on leftover food, detritus, algae, and biofilm. Supplement with quality flakes or pellets if natural food sources are limited.
Compatibility
Blue leg hermit crabs are generally peaceful and compatible with most reef inhabitants. May occasionally compete with other hermits for shells but rarely cause harm to fish or corals.
Type
Crab
Min tank size
20 gallons
Category
Cleaner
Care Level
Easy

Looking for a hobbyist seller?

ReefDock's marketplace lets reef-keepers sell invertebrates directly to other reef-keepers with Stripe-secured checkout and live-arrival photo confirmation. Browse current invertebrates listings on ReefDock, or list your own.

Verify the source tank before you buy

ReefDock is the sister app to Reef Trak. Sellers who maintain a Reef Trak tank log can publish source-tank parameters on eligible invertebrate listings — so you can see the conditions a invertebrate was raised in before you buy. Log this invertebrate on Reef Trak.

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