02-10-2011, 11:51 AM
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Originally Posted by Byron
With the API liquid nitrate test kit, you need to shake Regent #2 for 2 minutes before adding the drops. The instructions say 30 seconds, but this is not sufficient and many have had false (and much higher) nitrate readings because of it. Shake Regent #2 for 2 minutes, then tell us the result.
Man, I did not know that. I have been doing the 30 second thing, and I stay around 20 at the max. Of course I have a lot of plants, but I will start shaking longer. Thanks.