While keeping pet loner crabs is a common practice, attempting to mate recluse crabs can be an uncommon challenge. To ensure a successful mating of loner crabs, many meticulously planned advances need to be taken with a lot of planning.
I believe that any reasonable person would agree that the most important step before beginning the cycle is to ensure that you have a male and female loner crab. You won’t have children if you don’t take this first step, even though it might be hard to tell men from women.