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How to Choose Decorative Seashells for Hermit Crab?

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How to Choose Decorative Seashells for Hermit Crab?


A Hermit crab needs a variety of shells to change its shed as needed or desired. Crabs are quite picky about the shells; therefore, you are required to prepare a good variety of shells for them. Numerous websites have large decorative seashells for sale. But do you know how to choose the best one? If your terrarium kits don’t have enough and proper sea shells, it can be stressful for your crabs.


Let’s take a look at the ways of choosing the best decorative sea shells for your crabs:


  • Explore proper shell size


Exploring sea shell size is the most important concern for choosing the hermit crab shells. The size of the shell is measured across the longest diameter of the opening. The best size for a good sea shell is small, medium, large, and jumbo are:


  • Small hermit crabs range from 3/8" to 1/2".
  • Medium crabs ranging from 1/2" to 1".
  • Large crabs ranging from 1" to 1 3/8".
  • Jumbo crabs -up to 3" openings or larger.


  • When buying online


You may be able to buy shells at the pet store or even at a craft store, but buying large sea shell online is the best for top quality and standardized sizes. Only those companies that sell a hermit crab and their accessories can provide all measurements and details. Therefore, before ordering, check whether they are a specific provider or not.


  • Comfortable shell


The most comfortable shell is with round openings for crabs. In addition to considering the size and opening of the shell, you should only buy natural, polished, or etched shells.


Note: When a hermit crab is ready to change shells, it may need to try out several shells before settling on a new home. Therefore, buy large sea shell online wisely.


How to Clean Sea Shells Before Placing in Terrarium?


Shells sold at stores are usually bleached beforehand, leaving chemicals that could harm the crab. Before you place them in a terrarium, know how to clean them.


  • Add 1/3 of the water to a bowl and stir in baking soda.
  • Soak the shells in the baking soda solution for 10 minutes. Be sure that the air bubbles out of each shell.
  • Shake each hermit crab shell over the sink to drain the water.
  • Add 1/3 of the de-chlorinated water to a clean.
  • Soak the shells for 5 minutes.
  • Shake each hermit crab shell over the sink to drain the water.
  • Repeat steps 6–8 with fresh de-chlorinated water.


Note: A variety of websites has large decorative seashells for sale. Read the factors mentioned above to choose the decorative shells for hermit crabs.



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