Hi guys,

Further to my earlier post on my ridiculously high dosing of NO3, I have this to share.

It takes about over a night before I could measure the NO3 I dosed the day before. So, that could probably explain why we always face accuracy problem with it.

BTW, my BBA receded but still could not explan why such a big dose of KNO3 was needed. Will reset all nutrients on Tue to see if high NO3 is indeed needed.