Maybe its just me but it seems that I can't get a straight answer from anyone. My questin this time is this: from all the water tests that one must do to set up a marine tank what exactly do the levels need to be at. ph, salinity, gravity, nitrites, nitrates, amninonia, alkalinity, etc. If someone could give me the exact numbers measurements for each of these it would be most appreciated and maybe I could measure the water in my tank.