Quote:
Originally Posted by lastlight
For the second part of the test you start with a totally FRESH 3mL of tank water =)
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You are absolutely correct.
I actaully only ever do the first part of the test... I always find the second part of the test give me a reading of 6 to minus from the first step. So I don't even bother with the second part anymore, just take my first test and subtract the 6 then multiply by 50
I am not saying for you to do it, just that the second test never changes for me, so I am lazy and don't bother with that anymore.