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- Apr 18, 2019
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My reading was 2.0ppm lol... but it was wrong- I re did the test twice and got 0How high is insanely high? 0.2 ppm is considered very high for instance, but after a big feeding it can temporarily spike as high as 0.2 ppm. This should quickly go away then. If it's higher than 0.2 ppm I would definitely do a large waterchange and the next few days a couple smaller ones depending how high the ammonia level is.