new grower need help with my plants

[Rolando kush3]

I started my one plant on 2/5/14 the other on 2/15/14 they both started out dark green now they r turning lighter green the older one has a purple stem and the leaf stems are turning purple

 

[CO Finest]

What are you growing them in? What kind of lighting?

 

[Rolando kush3]

I have four cfl 23w and a feliz 125w cool sprectrum lights one is in half soil half perlite the other half coco coir half perlite im having trouble uploading pics here to show them

 

[CO Finest]

Did you use any nutes on them? if so what kind and how much?

 

[Rolando kush3]

The younger one with advanced nutrients the three step and b52 at 1 ml per liter of each the older one the soil had .06 of nitrogen .03 of p and k I got the photos on the members gallery with my name if u wanna see them

 

[Rolando kush3]

View image in gallery​

View image in gallery​

 

[Rolando kush3]

View image in gallery​

 

[CO Finest]

I would do a flush and cut nutes back a 1/4 Just straight water on the yellow one.

 

[Dusty Kiefers]

do you know the ph of your nute solution

 

[budstud]

Do you realize that one will ph differently than the other? Soil root-zone should be 6.5/6.8 while the one in Coco, the root-zone ph should be around 5.7/5.9

 

[Rolando kush3]

advanced nutrients is ph perfect I use water that has reversed osmosisi have checked the ph level I thought I didn't have to cause of the nutes