HCA: Hermit Crab Association

I was wondering where you can get calcium for your crabs while their molting?

I just give them eggshells that were rinsed off in dechlor water. Sometimes I crush them up really well and put them on the crab food.

Like Tremors said you can use eggshell, but you could also use crushed cuttlebone which you can find in the bird section of the pet store, crushed oyster shell which you get at petdiscounters.com(this is what I use) or calci-sand which you can get at the pet store but I personally would chose one of the others over calci-sand because it theyprobably have more calcium and when claci-sand gets wet it will get all gross

ok thanks