Hey all. So my tank has been cycling for a couple weeks now. It has been up for a couple weeks as I said...but I just added live rock about two days ago. Everything (nitrates, nitrites, alkalinity) was good...but pH was a little low (about 7.8). Now I've added live rock. I did a water test today and nitrites were high...and my pH was very low...lower than 7.8. I added pH stuff for saltwater that brings it to 8.2 (is that a good pH?) and another chemical to lower my nitrites. Also, the guy at my LFS said that my tank will go from perfect water conditions to really bad water conditions and then it will stable out. Any comments on this? Is what I did right?