10th June (Veg) - So had some extreme random yellowing and curling. Not sure what the problem is. I think it's possible Nitrogen and Sulfur def with some wind burn issues. The side closest to the fan is worse.
I've upped the calmag for now. I'm going to get some Epsom salt and raise the fan and see how it responds. If nothing then I'll flush her and start from a low feed again and see what happens.