hey 6'deep ,
w/ mine even when i tried to foliar feed em N and added N bk to my flowering nutes the plant wouldn't take it up ? like it locked out N and was just craving P and K . Wish you were a lil closer than G/R man . i got some old m/g flowering nutes i'd give ya . But i bet they stay yellow anyways .
this exact prob. is why i , and i also believe Weedhound do hydro now .
peace
your cuz
crispi