So I have about 75 lbs of live rock that I had in my previous tank. Before I tore the tank down I was having a terrible time with the parameters and decided I needed to take a break since I joined the military. Now I want to start up again and I asked around at a lfs in the area about my live rock. They said that it probably soaked up nitrates and was slowly leaking them into my tank and that's why I was having issues and there was no saving the rock. Is any of that true and if not how can I save the rock and start over new? Or should I just buy new rock all together?