A hermit crab from the Gulf of Thailand
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Hermit Crab

Hermit crabs are decapod crustaceans of the superfamily Paguroidea, distinct from the true crabs in the infra-order Brachyura. Most hermit crabs salvage empty seashells to shelter and protect their soft abdomens. more...

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There are about five hundred known species of hermit crabs in the world; although they are mostly aquatic, there are also some terrestrial species. A number of species, most notably king crabs, have abandoned seashells for a free-living life; these species have forms similar to true crabs and are known as carcinized hermit crabs. Other species inhabit shells as juveniles and abandon them as adults, most notably the coconut crab.

The species most commonly kept as pets in the United States are the Caribbean hermit crab (Coenobita clypeatus) and the Pacific hermit crab (Coenobita compressus). In Europe, the common hermit crab (Eupagurus bernhardus) is popular.

Commonly kept marine hermit crabs

There are several species of hermit crabs that are common in the marine aquarium trade. These omnivorous or herbivorous species are useful in the household aquarium as scavengers, eating algae and other debris.

The scarlet hermit crab, or Red Reef hermit crab (Paguristes cadenati), is a handsome and interesting species with a bright red body and yellow eyestalks, and stays rather small (about 2-5 cm / 1-2 inches across). Smaller species of a similar passive nature include the zebra hermit crab (brown legs with white bands), the red-tip crab and blue-legged crab.

While most species available in pet stores are small like those listed above, and are simply scavengers, others may grow quite large (some on the Pacific coast can grow to 30 cm / 12 inches) and may eat coral, clams and other crustaceans. So be sure to ask if the species is not clearly marked.

Most hermit crabs will appreciate a salinity of between 1.023 and 1.025, and temperatures between 4 to 14 °C (temperate species) to 24 to 27 °C (tropical species), with a good bed, algae to graze on and a variety of shells to change into. They will happily switch shells frequently if given the opportunity - an interesting display to watch.

Read more at Wikipedia.org


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Zoo Med Hermit Crab Starter Kit 1 Each By Zoo MedZoo Med Hermit Crab Starter Kit 1 Each By Zoo Med $30.13 Hermit Crab Toys Hermit Crab Toys Habitat Decor Reptile Tank Terrarium BeigeHermit Crab Toys Hermit Crab Toys Habitat Decor Reptile Tank Terrarium Beige $9.83
A House for Hermit Crab - 3.9 x 0.3 x 5.5 inchesA House for Hermit Crab - 3.9 x 0.3 x 5.5 inches $7.89 2 Live Land Hermit Crabs with complete tank, light, toys, and living necessities2 Live Land Hermit Crabs with complete tank, light, toys, and living necessities $150.00
hermit crab live+habitathermit crab live+habitat $300.00 New ListingStarter Hermit Crab KitNew ListingStarter Hermit Crab Kit $17.87
a 4oz Bottle of Hermit Crab Food by Florida Marine Researcha 4oz Bottle of Hermit Crab Food by Florida Marine Research $8.95 hermit crab accessorieshermit crab accessories $25.00
One Medium Hermit Crab shell new 2000 year medium side brand newOne Medium Hermit Crab shell new 2000 year medium side brand new $4.88 Florida Marine Research Hermit Crab Treat 1.5ozFlorida Marine Research Hermit Crab Treat 1.5oz $7.49
Hermit Crab Assorted Shells And Food + Water DishHermit Crab Assorted Shells And Food + Water Dish $19.99 SunGrow Hermit Crab Huts, 5x3 Inches, Arthropod's Coconut BrownSunGrow Hermit Crab Huts, 5x3 Inches, Arthropod's Coconut Brown $19.98
Hermit Crab Supplies Misc Lot Shells Food Meal Water Conditioner Soil M11Hermit Crab Supplies Misc Lot Shells Food Meal Water Conditioner Soil M11 $22.99 Hermit Crab Habitat and Accessories. 11" Round, Plastic and Easy to clean.Hermit Crab Habitat and Accessories. 11" Round, Plastic and Easy to clean. $24.00
Zoo Med Starter Hermit Crab KitZoo Med Starter Hermit Crab Kit $16.07 Pre-owned Miscellaneous Hermit Crab Cage & SuppliesPre-owned Miscellaneous Hermit Crab Cage & Supplies $10.00
Zoo Med Laboratories Szmhc2W Hermit Crab, 2-Pound, Sand WhiteZoo Med Laboratories Szmhc2W Hermit Crab, 2-Pound, Sand White $13.99 Crabs Blue Leg Hermit Sm 100 (+20 Free) PackCrabs Blue Leg Hermit Sm 100 (+20 Free) Pack $65.00
15Pcs Hermit Crab Medium and Large (6 Types) Natural Hermit Crab Sea15Pcs Hermit Crab Medium and Large (6 Types) Natural Hermit Crab Sea $19.04 Hermit Crab Starter Kit W/ Food Water Dishes Growth Shells Care Sheet & More NewHermit Crab Starter Kit W/ Food Water Dishes Growth Shells Care Sheet & More New $35.97
Hermit Crab Huts, 5X3 Inches, Arthropod'S Coconut Hide, Spacious Coco Tunnel, UsHermit Crab Huts, 5X3 Inches, Arthropod'S Coconut Hide, Spacious Coco Tunnel, Us $16.10 House For Hermit CrabHouse For Hermit Crab $9.22
Hermit Crab Aquarist Valentines Day Gift CrabHermit Crab Aquarist Valentines Day Gift Crab $11.89 to Fmr Hermit Crab Habitat Terrarium includes accessories food, water, trainer,woodFmr Hermit Crab Habitat Terrarium includes accessories food, water, trainer,wood $45.00
Preserved Hermit CrabsPreserved Hermit Crabs $3.00 Hermit Crab Complete Diet. Non-Gmo Premium Ingredients, for All Nutritional.Hermit Crab Complete Diet. Non-Gmo Premium Ingredients, for All Nutritional. $28.95
Fmr Hermit Crab Small Natural Climbing / Shade Wood ( New )Fmr Hermit Crab Small Natural Climbing / Shade Wood ( New ) $10.00 Zoo Med Laboratories Szmsck1 Hermit Crab KitZoo Med Laboratories Szmsck1 Hermit Crab Kit $15.89
ZooMed Hermit Crab Assortment Growth Shell packof 3 small, medium, and XlZooMed Hermit Crab Assortment Growth Shell packof 3 small, medium, and Xl $6.39 Florida Marine Research Hermit Crab Choya Wood Brown, SmFlorida Marine Research Hermit Crab Choya Wood Brown, Sm $5.95
Fluker's All Natural Premium Hermit Crab 6 Lbs (Pack of 2), Value not foundFluker's All Natural Premium Hermit Crab 6 Lbs (Pack of 2), Value not found $18.79 A House for Hermit Crab - A House for Hermit CrabA House for Hermit Crab - A House for Hermit Crab $6.97
Package of 6 Decorative 3-1/2" Resin Coastal Hermit CrabsPackage of 6 Decorative 3-1/2" Resin Coastal Hermit Crabs $23.94 Hermit Crab Viewing Wall Hide Hermit Crab Foraging Ornament Toy Hermit Crab TankHermit Crab Viewing Wall Hide Hermit Crab Foraging Ornament Toy Hermit Crab Tank $14.99 to
Hermit Crab Supplies Hermit Crab Shells Trays FoodHermit Crab Supplies Hermit Crab Shells Trays Food $90.00 Hermit Crab Sand White EachHermit Crab Sand White Each $17.97
Hermit Crab Complete Diet. Non-Gmo Premium Ingredients, 2 Ounce (Pack of 1)Hermit Crab Complete Diet. Non-Gmo Premium Ingredients, 2 Ounce (Pack of 1) $23.81 Hermit Crab Equipment Feeding Care Health 18Hermit Crab Equipment Feeding Care Health 18 $6.00
Hermit Crab CareHermit Crab Care $6.02 3 Random Painted Hermit Crab Shell Turbo Novelty Aprox 1 ¼" Opening3 Random Painted Hermit Crab Shell Turbo Novelty Aprox 1 ¼" Opening $5.95
Live Pet Hermit Crab Complete Starter Kit - Shipped with 2 Live CrabsLive Pet Hermit Crab Complete Starter Kit - Shipped with 2 Live Crabs $68.99 Hermit Crab Starter Kit Each (No Tank)Hermit Crab Starter Kit Each (No Tank) $35.97
Hermit Crab Habitat Starter KitHermit Crab Habitat Starter Kit $14.95 Large Hermit Crab PoolLarge Hermit Crab Pool $34.49
2 Bottles Hermit Crab Food Treats ~ Florida Marine Research ~ 1.5oz Treats2 Bottles Hermit Crab Food Treats ~ Florida Marine Research ~ 1.5oz Treats $12.95 Land Hermit CrabsLand Hermit Crabs $9.00
4 Zoo Med of Hermit Crab Soil (D8)4 Zoo Med of Hermit Crab Soil (D8) $15.99
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Prices current as of last update, 01/23/25 6:21am.

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