Interesting viewpoint, never considered that my bacteria population could be lazy, or just not established enough to handle the load if the macros are eating up the majority. Only about 200lbs of LR. Assuming everything is true then my next course of action will have to be to investigate would be the source of all that NO3, given the light load and large water volume, that's a tremendous amount of NO3, something's generating an awful lot of wastes. No wonder my macro growth has been so rapid. Sounds like an upgrade to the cleaning crew is on the short list as well, it's fairly light now. Maybe another 100lbs or so of LR after Uncle Sam gets his cut.