B
bajangreen
Really? What method/test/kit are you using? I find that fascinating. Also, is there an initial source specifically of NH4 going into the ACT?
However, during their growth phases, that food becomes unavailable to the plants for a period. This always seems to be especially apparent to me in small containers (as opposed to growing directly in the ground or in raised beds outdoors), and so additional, readily plant-available feeds often also must be offered.
I am using "Jungle" brand, "quick dip 5in1 test strips". And All of my FPE and fresh ACT show 0 readings for nitrate(No3) & Nitrite(No2).
In the ACTs sometimes i use water from my aquaponic system filters or composted chicken manure, fpe's, clamon cherry and raw sugarcane juice. bubble 24-36 hours and used immediately.
I was thinking that the NPK's were "eaten/sequestered" by the aerobic micro life and held in a form that the test strips cant pick up. To figer out if that was happening i placed some ACT in a air tight pep bottle for a week and after it gave a slight NO3 reading (-20ppm). However my FPEs are also in airtight pep bottles and i have some of them that were closed from last season and they still don't give readings, so unless anaerobic micro life also sequesters NPKs i am still at a lost.