[AquaticLife] Question about Nitrate Level
The lot # of Bottle No. 1 indicates that it was manufactured in Nov. 2007 and Bottle No. 2 was manufactured in Feb. 2008. Both have an expiration of 3 years from manufacturing date. Of course I don’t know the storage conditions before I received them. The color chart shows a fairly significant difference between 5 and 10 ppm. I test my water at least once a week and sometimes more. I keep a log of all of my test results and I have recorded a 7.5 on occasions when the reading was clearly greater than 5 but less than 10 ppm. The last time I recorded a 7.5 was on March 30, 2008. Since my Nitrate level is almost always 10 ppm when I test it before a PWC I expected it to drop after the PWC and build back up to 10 in about a weeks time. I was surprised that it tested the same before and after the PWC. Jimmy McHaney Husser, LA
Category: Philippines Internet Koi Society
