My live rock was out of the water for about 8-12 hours before it made it into my tank, which then I filled with tap water while stirring in the salt (as recommended by my lfs). I didn't have enough reef salt to bring the water up to the correct salinity--only to about 0.019 where it sat for about 2 weeks. The tank seemed to start cycling for the first couple of weeks but then seemed to stop, with the nitrites at around 0.05. There are no visible signs of any small inverts or anything. How can I tell the condition of my live rock? Thanks!