Here are some pics, first one shows the difference in ten days from the 17th to the 27th.
They are now all in 12/12 since 29/7 after being flushed and were looking healthier.
Culled 2 males so far & I see another being diced shortly, so 5 out of 8 is not bad.
EC 1.8
PH 5.5 - I lowered this from 5.8 combined with the flush too see if it made a difference & i seems to be doing no harm, so ill leave it there.
As you can see they were droopy & the top leaves were curling under from the salt buildup which is sorted now.
Update with current pics shortly.
Cheers