Thought we were getting into preflowering mode, but it looks more like advancing deficiencies and poor response to BigBud / added P in the rez (for TD1). Being the weaker / werido plant she'll for sure have to be moved to the recovery tent soon. Need to sort this out asap!
@Buddha2, thanks! It's tons to have on hand, though I definitely wouldn't call it an 'auto'... more like a long vegged photo really - and quite the experience for sure!