memorywrangler Posted March 23, 2022 Share Posted March 23, 2022 I've been using the Coop's Ammonia test strips and I've noticed that they get bluer (indicating more ammonia) after they've come out of the water and sat for 10-20 seconds. I'm wondering when I'm supposed to read them. Is it immediately after it comes out of the water, or should I wait? Link to comment Share on other sites More sharing options...
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