Whats wrong with some of these plants?

[EssTeeDee]

Hi there, 20-25 deg Celsius
Grow tent 10ft x 5 ft
250mm extractor fan
growing in Coco Coir
ph 5.8 ec 0.6
600w MH
They have just been fed but they were also drooping with dry soil too, help!?

some are okay, some are looking pretty unhealthy haha

 

[GrizzWald]

Ec 1.4- 2 blow a soft breeze onto them also..

 

[GrizzWald]

what's you coir mix? I find 60plus of perlite to be good.. if that's 100% coco, theyll be getting overwatered. I wouldn't touch them for a week to ten days, you'll see the perk come.. then they'll take nutrients..

 

[EssTeeDee]

Oh shit, i didn't mix any Perlite with it haha, i was allowing for 10-20% run off, plants took around 3-4 days to dry, sooo......moving forward what should i do now?

 

[GrizzWald]

Id either give them a feed at 1.4ec and leave them for week or just leave them to dry right out. Needing root growth and a feed. Dry out will get roots searching for food (growing) and a feed will green them up.. Laymens; being wet there's no need for them to grow or take in food..