Buy base rock you wont need to add it all at once im still adding to my tank that has been running for 2 yrs. I buy 1-2 pieces a week sometimes none at all keep on eye on craig list for deals just be sure and ask if they ever run copper if so leave it.
Most people create their own problems by not following the basics and refusing to stock appropriate to their system. Gregcoyote 2013
SPS = Stability Promotes Success