~~-------------------------------------------------------------------------------- Okay I took my parameter reading when I got home this afternoon (could not wait) does that make me a fish nut yea I guess so, love this life style. I have learned quickly that this is not so much a hobby, IT's a enjoyable commitment. My readings were PH 8.2, NH3 8.0ppm NO 2 0 ppm, NO30 ppm . What happened from yesterday to today? No clue. Could it be operator error sure, but I have been using this api kit since January on my 90 gal. dpt and it has been consistent. Kits expiration date is 2018. Go figure.