only concern was for things like nitrite....seems that after I do a PWC
they go up a bit, and yes, I've already tested the water that I'm using and it's 100% clean and so are the filters, I use RO
water, but, after changing 20% of my water, my nitrites spike the next day...ammonia remains at zero and nitrates remains the same.
in the past, I used to add cycle after the PWC
- mainly because of LFS
advice, which was poor advice, but never seemed to hurt antyhing...
that being said, if my nitrites spike up do to some die-off or just because of removal of beneficial bacteria vs. fish load...should I be sticking back to using something like cycle...