Quote Originally Posted by the image reaper
and since he's in flowering cycle, unlikely he is adding nitrogen, that being my reasoning, as well ... :smokin:
This is not a correct assumption. As I said, I'm using the Lucas Formula for my nutes.

During flowering it calls for a 0-8-16 ratio (in ml per gallon) of GH FloraGrow, FloraMicro, and FloraBloom. The FloraMicro's NPK numbers are 5-0-1 (along with a bunch of micro nutrients), which means every time I top off my reservoir I'm adding some nitrogen to the system. Not much, but some.