That would be the Holy Grail of fish keeping, if you could get your bio media to rid the tank of nitrates.
Just busting your ceramic rings
Pretty sure you didn`t mean to add nitrates to your list.
Well all my tanks are at 0 ammonia and 0 nitrite but my nitrate is at 60 xP So for every 1 litter=56gal?? So my other stocked tank would be good cause I have about 10-11lbs worth of ceramic rings(My 100gal tank)
as long as your ammonia and nitrites are zero all the time. It means that the bacteria has sufficient space to colonise on the media to fully consume all the waste your fish produce (ammonia -> nitrite) and (nitrite > nitrate). Now just keep up with the water changes to keep nitrate < 40ppm