PPP Problems, top leaves yellow, spots?, fucked up light hours. Please help!

Potseed McGee

Active Member
My setup is this:

400watt CMH bulb in a grow tent ('mother tent' from HTG Supply). For a while now, the top sets of leaves have been turning light green/yellow and I cannot for the life of me figure out why, here are my plants today

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The bushy bitch is my PPP, the other 2 are mystery seeds.

In the 3rd picture you can see the plant with the spots. Yesterday, I shot them with 1tsp of Revive by Advanced Nutrients, and 1/2tsp of Tiger Bloom by Fox Farms, they greened up for a while (also showed signs of over watering.. oops) and now they are back to this color.

I can't figure out why, every time they get Revive they come back to a good green color but fade back.

I really need help, I've searched as much as I can and I have not found what the problem is.

Also, I inadvertently messed up their light schedule. They are going from 6:30am to 3pm. I wanted to do 3am to 3pm, would it be okay to fix it to 3am to 3pm, or should i extend it from 3pm to 6:30pm? or leave it alone?
 
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