not sure if this forum is applicable to this ? i have 3 tanks 2 freshwater and i often do water changes/top offs by adding tap (only for fresh tanks) to 5
gal bucket add chems (amquel/seachem prime/aqueon etc) some times it sits with a wavemaker and heater for a few days and i realize the
no2 levels on pretest going bonkers but tested at tap are 0 is this normal .
nh3 # always 0 thx