HYDRO 14 days in flower

[Jackw1963]

This middle plant rooted from clone I with 1 on left day 21 today. I received 5 cutting 4 rooted and these 2 are I thought all from the same mom. I use recirculating rockwool cubes buckets all plants fed the same from day 1. Ph 5.9 tds 1300 with general hydroponic expert recycling chart + armor si hydrogard and cal mag. Not sure what direction to go. Flush and just the necessities at half????
cut her down????

 

[Gingerbeard]

I don't know. I'm subbing because I'm curious and don't know how to sub without commenting.
But the first thing I would do is check for bugs and mildew because of the way the pictures look on my screen. Second thing would be to check the roots.

 

[Bluey]

First two pics looks pretty sick. 3rd pic all looks good.

No idea what's wrong in pic 1 & 2. Go back to basics re everything and full change of feed solution with 60% nutes. pH 5.8 to start. Make sure temps and RH are in range and don't blast them with light...maybe 750PPFD at most to start again.

Photo of roots may help.