I'm trying to set up a reef tank and I need to know what would be the best SG to stay at? Right now it is at 1.026, Temp is 77.3 0 Ammonia 0 Nitrate 0 Nitrite P/H 8.4. My tank is a 55Gal and I think I have about 30 lbs of liverock. My tank has been running sents May 3rd. 2008. My live stock...