In article .com,
Altum wrote:
The dead fish thread reminded me of something. I can smell high
nitrites as soon as I walk into a room. That's how I knew the water was
probably fine in the tank with the lost guppy before I even tested it.
I always know when the nitrites appear in a cycling tank, and I know
the smell of a healthy, mature filter. Am I the only one who "tests"
water chemistry by sniffing it?


That's ammonia not nitrates you can smell and yeah you can
smell it across a room if you know what it is.


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