flowers floppy, leaves twisty

Mechanicals
3x600 hps (2 at 10 hours, 1 at 11 hours)
ocean pearl plants in 400mm pots, neem/coco/pearlite, local 1-part nute, oxyplus, budlink, ozy tonic, full bud.
ph 6.3 ec 30

at 8 weeks flower

Problem:
Plant seems really soft, lightweight, limp. Compared to the others in there it just looks sad.

What have I been doing to it:
Have been using 'thumper' as a foilage spray, 100ml per litre. This 1 plant has had triple the dose it should have (meant to be once a week)

I just read on here that foliar feeding during flower is very much not a good idea and probably using triple the amount of 'thumper' isn't either.
You may have poisoned the plant with it. Someone else on here might know how to fix that. I would guess a good thing to do is to stop the foliar feeding for a while and flush the pots with pure water and see if it recovers, but I'm not sure. I don't have much of an idea beyond that.

EC of 30? are you kidding? even an ec of 3 is waaaay to high... bring it back down to 2

Yeah, sorry my mistake, it is only 3.0