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Items you will need
Clean plastic bucket
1 gallon tap water
Aquarium tap water conditioner
Ocean salt from a pet store
Hermit crabs may be used for the cleaning of saltwater aquariums or as pets. They are adaptable creatures but require saltwater in order to remain healthy. Hermit crabs use the same salinity of saltwater as saltwater fish. This can be purchased or made at home using ocean salt from a pet store. Table salt is not an acceptable alternative to maintain your hermit crab's health.
Pour the tap water into the mixing bucket. To this water add the aquarium conditioner. This isolates the chlorine and chloramine in the tap water making it safe for use in your aquarium.
Pour exactly 1/2 cup sea salt into the water and mix it thoroughly. The water will remain cloudy for a while until all the sea salt dissolves.
Allow the water to reach room temperature before adding it to your aquarium. This will also give the aquarium water conditioner time to remove the last of the chemicals in the tap water which would be harmful to your hermit crab. After two to three hours, when the water has reached room temperature, it can be poured into the aquarium.
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