You should let it mold. It is part of life for a Hermit crab.
Its a good if it doesn't smell if it smells that can be a bad thing like ...... dead hermit crab, mold or mildew so its a good think. my tank doesn't smell that's a sign of a good tank and a happy hermit crab
It can, but it's more rare than it actually growing in the cage, especially if you have a glass tank.
A tank
no because they could be land hermit crab and die
It should be a ten gallon tank and should have a bowl of water to lay the eggs in.
The best kind of wood to have in a hermit crab habitat is chlora wood, its a pale tan with holes and gaps in it. This resembles the driftwood hermit crabs have in the wild.
Yes, hermit crabs don't usually fight. You could give the new hermit crab a bath so that it smells the same as the other hermit crab in you tank.
When ever a hermit crab grows out of its old shell it finds a new one to call home. There is no set amount of times a hermit crab will change its shells. The hermit crab will only change shells if it has grown to big for its original one. Otherwise, the hermit crab will not change shells. It all depends on the hermit crab's growth rate and size.
Well for the safety of your hermit crabs i would use the basic rule of 1gallon of tank space per hermit crab..... so you could get any size you want.... but lets say you had a 10gallon tank so you could have 10 hermit crabs in the same tank.
yes
No they dont have air fresheners for hermit crabs
a small cage, like a plastic fish tank with rocks