Is it ok to not put sand or rocks in?

Question

my hermit crab cage? because i just got a new aquarium 4 the 2 of them and its huge! but i dont have any sand or rox. is that ok? i mean i have a lot of sand in the back yard (vollyball court) but isnt that dirty? so what do i do?

Answer 1

NO ROCKS please they will die xD

Answer 2

just microwave it and rinse it out and it will be fine

Answer 3

If you do not put sand in it will be ok.  They really do not need rocks either.  They can wait till you get the right sand.  Never use anything from outside unless you microwave it to kill potential parasites, bacteria, and other things could be harmful to your pet.   Good Luck