Originally Posted by kyle89
Its not really a important question but had my curious. I was having nitRITE spikes again. Two nights ago I tested the water and the nitrites where high. I left the test sit over night and it was still the same color and tested the same the next morning. Last night I cheched the nitrites and again left it sit over night. But instead of being purple like the night before it was a very faint blueish purple. I tested the water this morning and got a 0 reading? Just made me scratch my head and say hmm this morning. Anyone esle ever see this or are the readings still good outside of the 5 minute wait window?
results are only reloable within the stated time frame of checking. for API, you have to read them after 5 min. my nitrate test read 40, but gets red (more than 100) after 15 mins.