Thread: High nitrites
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Old 01/23/2020, 11:41 PM   #20
bertoni
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Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,616
Nitrite will confuse most or all nitrate test kits, so I wouldn't worry about that measurement just yet. I am not sure whether that test result is correct, but if it is, I might do a series of 30% water changes to lower the nitrite level a bit. High nitrite levels might inhibit the growth of beneficial bacteria, but I am not sure on that. I wouldn't put a lot of effort into it, since the tank will be fine given some time. I might try testing some distilled or freshly-mixed saltwater, to see whether the nitrite kit is doing its job properly.

The bacteria that process ammonia in our tanks live on the substrate. I don't see any evidence that a skimmer will cause a problem in a tank, or affect the ammonia cycle much. Lots of people have run skimmers off and on and not had much of an issue, although it's hard to be sure what's happening.


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Jonathan Bertoni
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