Sand crabs breathe through gills, in the same way that fish do. On land, sand crabs breathe by keeping their gills moist to facilitate the absorption of oxygen in the air.
First of all, sand crabs are not hermit crabs. Sand crabs are usually tan, white, brownish, or other flesh-like colors. If you catch one, let it go--They need water.
Sand is better so they can dig.
First of all, sand crabs are not hermit crabs. Sand crabs are usually tan, white, brownish, or other flesh-like colors. If you catch one, let it go--They need water.
no
Damp. They need t be able to maintain an air pocket underground without it collapsing. Deep, moist sand is great for this. It will also help keep the humidity to the recommended 80%.
Land crabs (most pets are) do need it while marine crabs like the ones you find at the beach do not.
No, I do not believe body crabs are transmitted by sand at the beach.
hermit crabs i guess
Sand crabs are small crabs that have no pincers. They are usually white or very light in color, and resemble large fleas.
mud crabs, sand crabs, ghost crabs, blue swimmer.
If by "air" you mean Oxygen, yes. All animals (except for that crazy jellyfish they found) needs oxygen to survive. A hermit crab's gills will filter the oxygen (or "air") out of the water. Even land hermit crabs have modified gills that need to stay moist in order to perforn the same task. If their gills dry up, they suffocate.