Curing Methods

[Renegade]

Hey guys I'm just seeking advice on methods for curing live rock, i've just set up a 120g tank and purchased all the rock, as advised i have been running the system with no lights, i am in a basement sweet so its not getting much light anyways, I hate testing water though i know i will need to, but i'm just wondering estimated time frame before it is safe for a fish or two. What signs should i be looking for.

Kyle