Works pretty well. Very easy to use. I keep a journal log of my aquarium water stats every week as I am cycling my tank. Just be sure to read them within 1 min of dipping the stick to get accurate readings.
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9 of 9 people found the following review helpful:
Easy to use and accurate
By Leslie from Blanchard, OK
On January 9, 2013:
I love to use these test strips for weekly testing. I have also had my water tested by the county extension board and by an expensive water testing company. The results from the county and the testing company show that the test strips are quite accurate.