
So I went all the way down to Zero... Hurrah!
I added it back up to 4.0
Now: I have to wait until the nitrites drop to zero as well dont I?
However, while I am waiting for this do I need to bring the ammonia levels back up to 4, everytime they drop to zero?
Thanks muuchly![]()
Do not add just because the ammonia drops to zero. It will start doing that in 12 hours or less but a once a day addition is plenty.

I do mine at 10pm everynight so that when it comes to 12 hour testing on the third stage I can get up for 10am, I prefer the lie in and it'll probably change to 11 over time 