Guys, since I've started my 30 gallon tank I've never been able to get my NO3
below 10 ppm
despite weekly 10% water changes.
I've read alot on the discussion that filters are nitrate factories, and am wondering if this is a cause. I do not have a skimmer yet, though I do plan on buying one. I have a bubble wall at the back of the tank that adds plenty of O2
to the tank, and the filter is just a regular petco hang on back filter with charcoal and plastic filter insert.
Thoughts on lowering my NO3