It depends on how many hermit crabs you are getting. It needs enough space for a food and water bowl, a small toy, and atleast five feet of free crawl space. You also need two or three shells for when it gets bigger as it ages and grows.
Most likely a land hermit crab, but you should always check with the person that sold it to you.
of course it needs sand
yes
Yes because moon sand has many chemicles in it that are not yet introuduced to the crab. Something may happen to the hermit crab so it would be safe not to put the hermit crab in the moon sand, since scientist have not experimented it and found out for sure.
yes
No. Hermit Crabs need a substrate that will allow them to bury themselves. They cannot bury themselves in gravel. I suggest sand, but it can get messy and attract sand fleas. A ggod idea is to look for substrates out here that are "hermit crab friendly". There are several and a great brand is "T-Rex" or "ReptileSupply.com" since most reptile supply companies also make products for Hermit Crabs because they need similar habitats.
Blending craft sand with hermit crab sand is not recommended, as craft sand may contain harmful additives or chemicals that could be detrimental to hermit crabs' health. Hermit crab sand is specifically formulated to provide a safe environment, including the right texture and moisture retention. If you want to create a suitable substrate, it's best to use only products specifically designed for hermit crabs or natural sand that is free of harmful substances. Always prioritize the safety and well-being of your hermit crabs when choosing their habitat materials.
The depth of substrate in a hermit crab habitat should be deep enough that it covers your largest crab at least by 3x. It should be made using about 5 parts playsand and 1 part coconut fiber, moistened to a sand-castle making consistency.
I dont think so but you can always buy new sand.
Sand, or fine gravel on the bottom of an aquarium, or a screen cage is ideal. You need to keep the cage temperature at least at 72 degrees Fahrenheit. The humidity level is best a 70%. The habitat for you hermit crab should have a moist warm feel, this will keep the gills of the hermit crab in check. Keep a spray bottle of fresh water handy and periodically spray your hermit crab habitat with it.
Usually they need about 3 inches depending on your hermit's size. When molting, they need to completely cover themselves. I use something called cocofiber. I got it when i bought my crabs. They also love sand, i usually mixed it, sand on half, coconut on other, they love both sides!
probably not. but, you can always use your hermit crab as a guinnea pig for the rest of civilization wondering the same thing, then report back to us!