I'm with you jay
Earlier on I gave them a foliar with the nettle + root (since it's a bit closer to "done") at 1 teaspoon in 3l of water.
I also started a kelp meal and EWC tea (extra heavy on the kelp meal) which I will foliar with tomorrow. I think that should put the breaks on the symptoms!
sounds good to me. im sure they will love the kelp/ewc tea too.