Uups, NO3 at 200 mg/l today. No wonder, given that I start with a tap water around 50...
I did a water change of 48 l (about 30%), using unconditioned water: my chlorine readings are about 0 at the tap, so why adding chemicals which woul kill the needed ammonium?
I did a water change of 48 l (about 30%), using unconditioned water: my chlorine readings are about 0 at the tap, so why adding chemicals which woul kill the needed ammonium?
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