Planted Tank Guru
Join Date: Oct 2009
Location: Clifton Heights, PA
I used some of the same test kits for years. As longs as you close the lids tight, they should last a while. Calibrate them, of course, depending on what you are using them for. Well, actually, having said that, I guess all test kits should be calibrated. To be honest, I have never calibrated a PH test kit though.
“Presents are the best way to show someone how much you care. It is like this tangible thing that you can point to and say, ‘Hey man, I love you this many dollars-worth.’” -Michael Scott
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