Read and research what you want to put in the tank !!! You need to decide about rock pretty quick though. If you are going to use uncured rock, you need to get it ASAP so you don't cause a mini-cycle later. If you are going to use cured rock, go ahead and kick your cycle off. But remember, even the best cured rock will have some die-off, but probably not enough to start a mini-cycle.
Read and Plan, don't just do !!!