Rdwc Deficiency Help!!!

[Kannabiz]

Environment temp:75
Ph:6.1
Water temp:67
Ppm:220
1000w hps

Close to 3week of vegging, i have enclosed some pic of the plants leaves showing signs of discoloration or deficiency. I also snap a pic of my rootzone. My plants look like its not healthy. Last member I spoke to was Gnome about this issue.

 

[Seamaiden]

P- is the only problem I see. The shade of green is too dark, the petioles are very purpled. Otherwise, looks pretty alright to me, so do the roots.

 

[FooDoo]

I see mg def. Drop your ph to 5.3