you can do either fish-in or empty cycling. fish-in cycling is usually for those of us cursed with impatience, but you must be careful and not slack off with your water changes. empty tank cycling is usually considered safer, but you have to introduce bacteria yourself, either from "dirt" filter media or substrate from an established tank, or from a prepared additive culture.
So remember, when you're feeling very small and insecure,
How amazingly unlikely is your birth,
And pray that there's intelligent life somewhere up in space,
'Cause there's bugger-all down here on Earth.
Loki/Grendel/Gail/Beowulf/Camilla/River/Bathory/Arwen/Lafayette/Deb/Jack Skellington (soon)