It is nearly impossible to keep a sand crab alive in a domesticated setting as they rely on the actions of the tides and ocean minerals and microscopic organism for food and neither can be replicated in a tank.
Generally it's always a bad idea to bring animals home from the beach. Take him back and release him where you found him.
http://www.ehow.com/how_2221920_feed-sand-crabs.html
The Best way to keep a crab alive is if its aqua kind of crab buy a large tank nuy vrab food get clean saltwaterplace the crab inside and it will be alive
She will drop them in water of any depth but there is no way for the average hobbiest hermit crab keeper to keep them alive, so it's a bit of a moot point.
yes
The shell may keep the crab warm.NJASK Practice choice.
Bring home some salt water for him to live in.
Crab salad should keep safely in the refrigerator for three to four days.
you can just leave them in cold water but not super cold.
Crabs keep better in the the shell.
yes
well like cat,dog pets you keep at home really
fish tank
You can keep a horseshoe crab in a saltwater tank, as long as you have a large sandy bottom. If the horseshoe crab becomes too large, or starts knocking things over in the tank, get release it back into the ocean or get a bigger tank.