So, I hadn’t followed the other stuff too much, but the hypothesis here is that rinsing rock containing saltwater nitrifiers with freshwater negatively impacts that population, correct?Btw I was curious. Why the second tank with rock and no ammonia? I mean I can see the reason for it to. Degree but. I suppose I can also see a reason to keep a 2ppm stock of ammonia and test that as well to see if it spontaneously drops. But I’m not sure either is likely to help. But I might do the ammonia and no rock experiment. Just to document over time whether ammonia will process on its own nd how long it will take. Thanks