HCA: Hermit Crab Association

i need help with a deep salt water pool i put a sponge in there but im trying to think what could be taller and easier to climb i have cork wood but it floats

You could attach some hemp netting to the side and the crabs could climb up that.

Half-submerging a fake plant may work, too.

u can put gravel, like make it high when they walk in, but then keep making it lower and lower until there is none, this way they can have a choice of how deep they wanna go in=]