Well,,, I would do that and I did that
My point is that no3
cannot be at the level 0 in any way. When it happens there's not live active bacteria in the tank. I myself prefer to choose the moment right before the end of cycling the tank to introduce first tank inhabitant (part from bacteria of course).
The reason for this is the fact that all ammonia consuming (and no2
producing) bacteria are active as well as the no2
consumers (and no3
When you let the cycling to linger on for too long you'd end-up with 0 nh3
,nh4 (ammonia) and 0 no2
but high level no3
, which means that ammonia consuming bacterias have nothing to eat (die - go into dormancy) as well as no2
consumming ones. Thus what I do I start making aquarium alive right before that stage and doing the first pwc
like before in order to keep the entire ecosystem live and active.
I hope it does make sense.
With my best wishes