I've been leaving it alone and it's really just starting to get noticably worse the past couple days. Problem is this plant is the same age but 2-3 weeks behind the other 3, and still not really flowering, so it's always a balancing act with autopots but it's usually not a month between plants flowering.
I do have valves on the autopots so I think I'm gonna disconnect this one and flush it with the prior veg nutes and hand water until it's ready to go back on the rez. Sound like a plan?