I'm not going to name names but we all know who the major proponents of anaerobic filtration are. Somewhere in time, over the last few years as the hobby has grown over the pandemic or while I was away, the idea has grown into a movement and the hypothesis has become a reality. I'm not going to say that some sort of denitrification might take place... somewhere deep inside Biohome, Fluval or Seachem filtration media, or even deep within various substrate layers... but it's becoming a bit of a joke now. People are building anaerobic filters and investing serious amounts of cash to eliminate as much nitrate as possible. I even saw articles stating that 40 PPM of nitrate would cause fish to list over and damage their skin. Was there something I missed. In fact, don't even tell me. Leave me in blissful ignorance as the parade of fish breeders and hobbyists pursue this technological marvel. I'll simply use plants for the time being and hope some academic paper resolves the elimination of nitrate against a decent looking planted tank. I even had the YouTube videos blocked on one channel on the hope that this would disappear with time, but my blocking app is gone and I am bombarded with all the wrongs of aerobic filtration and the consequences of my nitrate shocker. But this is not the place for it. I have no sensible questions. The world has been turned upside down. I'm seeing anaerobes everywhere now. Even my cat litter looks like the home of assemblages of facultative and obligate anaerobes. My hands, my computer screen. Denitrification is everywhere and it's going to overwhelm my aquatic plants. Hook then into an iv nitrate drip. Send for the witch doctor. I am going to need to exorcise the nitrate from my tank water. My potassium nitrate is now being used to preserve sausages from now on. I will go fully anoxic. Repatriate my fish to their natural habitats. We don't need oxygen in my tanks any more. It will be a rock-scape. But closer to habitat on the moon Europa.