(pics) DIAGNOSE THIS SICKNESS

[amar2393]

Please help, First I will give you insight to my plant. my environment and what has been going on.

The plant is a bubba kush received all clones, the room temperature is between 75-80F at all times. The Humidity is at about 50 percent constantly. The pics are all 4th week in veg and they are in PRO MIX in 5 gallon soil.
veg was going good they started to get yellow and just problems after problems. I flushed 3x and they seem to still worsen
Can anyone tell me what kind of deficiency this is or what the problem is because it seems to just get worse and worse and I cant sleep at night I want to get it fixed as soon as possible!

They are under 1000w HPS and there is good airflow as well. The problem is This deficiency seems so close to so many kinds of pictures I see on the internet so i cant pin point it.. and another problem is there are so many noobs giving "expert" advice when they simply grow 1 plant in their closet and I dont wanna be steered the wrong way

Please ICMAG COMMUNITY help me!!

what should i do??

 

[TheCleanGame]

Welcome to ICMag..

1. Try turning off the HPS and taking some normal lighting photos, will help peeps out a lot.

2. What are you feeding them?

3. Try dropping your temps down so that 75F is your max. (Significant increase in quality by doing that)

They look hungry to me. Since flushing them increased the issue I would say that you flushed what little food they had out. ProMix doesn't have food in it. The plant is sucking mobile nutrients back out of the old leaves at the bottom so it can support the new growth at the top of the plant.

Keep it Clean!

 

[Troll King]

This is an EC burn, too much of it, you are either using bad water, too much nutrient, or a soil that needs flushing.