What is happening?

I left for 4 days to go to famalies and i've come back to this?





what does it look like has happened?


Update**
I just tested my water with all the nutes (just under 1litre per plant) on this grow chart http://growguide.info/ , the Ph was 6.8 and after 0.5ml of Ph essentials down the Ph was at 6.2 which i left it at does this all sound ok? And these are other pictures (under normal light)



Plant1




Plant 2




Plant 3




Plant 4




Plants dead leaves at end of watering and picking dead leaves off.


There seems to be some reddish and yellowing going on and i dont know why?

Thanks, Milly

they've missed you ? and things you did for them when you weren't gone ?

water them.

heat stress, low water, and when you take pictures, use normal light, not HPS so we can see the colour (other than orange)

Dabolili said:

they've missed you ? and things you did for them when you weren't gone ?

Click to expand...

I was gone 4 days and nothing just a nice water and spray

Dr Kynes said:

water them.

heat stress, low water, and when you take pictures, use normal light, not HPS so we can see the colour (other than orange)

Click to expand...

I see way too many pics where they dont do this lol

Just looks like lack of water to me personally!

Update**
I just tested my water with all the nutes (just under 1litre per plant) on this grow chart http://growguide.info/ , the Ph was 6.8 and after 0.5ml of Ph essentials down the Ph was at 6.2 which i left it at does this all sound ok? And these are other pictures (under normal light)



Plant1




Plant 2




Plant 3




Plant 4




Plants dead leaves at end of watering and picking dead leaves off.


Thanks, Milly

they look dry water and see if they perk up

ok i have watered