HCA: Hermit Crab Association

The original terrarium is sand from the pet store that was crab rated and the new one is coconut husk from the pet store. They are both 4" deep. If it was just that the two burried crabs died and attracted bugs, I don't think I would have gotten the bugs again three months later in the new terrarium...

We have had three crabs for just over three years now. They were the classroom pet that then needed a home! Two have been burried in our sand substrate since October / November. First question, is that too long? Typically we only saw them dissapear for a month at time before. It is more complicated ...