Hi all I'm new to reef tanks, I have a question that I'm hoping sombody could advise me on please. So I am into day 8 of my fishless DR tims cycle using the one and only and ammonium chloride, since day 2 of testing my parameters iv been using the salifert nh3 test kit and the JBL combiset marin, and eveytime I test my ammonia levels the salifer kit says I have 1.5ppm where as the JBL says I have 0.5ppm and I am confused what to belive, my nitrite level started at 0.2ppm and today is on 1.0ppm.