Your feeding does not sound excessive to me. I'm sorry that the nitrates aren't going down.
Are you using RO/DI or tap? I'm actually having some pretty bad nitrate (and for the first time ever) phosphate buildups. I use RO/DI for my SW but I wonder if the membrane is going and maybe it's a spring runoff issue? My FW tank is just raw tapwater and it's off the charts all of a sudden, which you'd think wouldn't be possible with the amount of plants in there (well, now algae
). So I was thinking I might test my source water tomorrow and see if that could be an explanation.
We're on different reservoirs but it stands to reason if spring runoff is starting that both the Elbow and Bow river water systems could be having issues?
Wonder if anyone else is noticing more NO3 and/or PO4 all of a sudden lately?