Too much fert? Not enough? Pics included, HELP

Hi guys,
So I had a bunch of healthy clones which I transplanted into soil which the grow shop guys warned had enough nutes in it alone to feed for a few weeks... ok no dramas, so I waited a few weeks before slowly introducing nutes.

The plants freaked out, stems/shoots were purple, leaves yellow, spots appeared, lower leaves were drying up & curling..

So I flushed the plants like crazy with water.. the main stems have greened up again but here's my problem - the leaves are still very pale and yellowish, most plants' NEW growth is green but some plants are still yellow/pale/weak.


....Do I have a nitrogen deficiency? I thought I had too much nutes in my soil? I'm confused... Help?

whatever leaves were screwed up usually wont repair they will just chill until they eventually turn yellow enough to fall just keep watching the new growth.....ph test just to be sure thats right and then wait a week and try a mild solution