i don't know, but I thought the same thing. Why not just put a measurable amount of amonia in there and let it cycle itself. Then I came across something written by randy saying it wasn't the same thing. So I excepted his explanation. It stemmed from someone adding urine to the tank. But I don't remember enough to explain it. I tried looking for it but when you do a search for amonia a million things pop up.Not the same how? It is the same
@Randy Holmes-Farley - what is the difference between store bought amonia, and cycling a tank vs the kind we measure in a tank?