Excellent, got really excited when saw the nitrate level after weeks of 0, 0, 0. Yes live plants are the way to go. Just not sure now how often I need to clean filter?? Haven't done it yet, my filter is in the hood of my Aqua one AR-980;
there are three sections, the first has ceramic rings in the bottom which is covered with a black what looks like a big scouring pad then some filter wool.
The middle compartment which is smaller has some more ceramic rings and 2 bags of charcoal (which I rinsed thouroughly) then it has the black pad then the filter wool on top.
The third compartment has the black pad on the bottom with 2 layers of filter wool on top.
Not sure if this is right. The filter has a long pipe which drips along these three compartments.
All I can see happening at the moment is the filter wool going brown where the water runs through it!
Any help much appreciated as learning and don't want to mess it up