hi QuakQuak,
you only need to cycle yoru fuge if you are populating it with UNcured liverock, live rock rubble, or live sand that, if your buying your live substrate (rock or sand) from a LFS and it is pre-cured, kept in water for the voyage home, and added directly to your fuge, you can treat it like adding any other animal to your tank.
have a good one.
"Maybe in order to understand mankind, we have to look at the word itself: "Mankind". Basically, it's made up of two separate words - "mank" and "ind". What do these words mean ? It's a mystery, and that's why so is mankind." ~ Jack Handey