Things You'll Need:
- Aquarium
- Other crabs
- Substrate
- Humidity and temperature control
- Two water dishes
- De-chlorinated water
- Salt water
- Food dish
- Food
- Shells
- Toys
- Rocks
- Sea sponges
- Tank heater
- Humidity gauge
- Thermometer
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Step 1
Buy an aquarium with a lid to house your crab. Hermit crabs do best in groups of three or more, so choose one that provides enough space--one and a half gallons for each inch of crab. For the traveling crab, you can purchase an aquarium that provide a lid with a handle.
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Step 2
Pour at least three inches of sand or gravel into the bottom of the aquarium as bedding.
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Step 3
Create humidity within the aquarium of no less than 70 to 80 percent and temperature from 70 to 80 degrees F. Humidity keeps gills moist, prevents dehydration and eases the molting process.
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Step 4
Give crabs at least two water dishes and one food dish. One water dish holds de-chlorinated water, while the other holds salt water. Crabs eat a wide variety of food from non-acidic fruits like coconut or papaya to packaged hermit crab food.
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Step 5
Provide larger shells for crabs to hide in and grow into along with toys or rocks that allow climbing.









