two different colors on plant

[pufindo]

im in week 5 of budding and the leaves have been gradulay turning yellow, dying, and falling off from the bottom going up. the leaves have not regrown. so now i have the bottom half of my plants bare. now as far as the rest of the leaves.... some areas are turning light green to yellow and some areas are dark green and drooping down, but the buds look good. my ph is 6 (hydro) and im using some bloom booster for nutes. ive tried adding a little epsom salt, but it didnt help. any one have any advice??? thanx

 

[Mutt]

Hey, gonna ask ya some ??'s before the pro's chime in.
PH seems a little high, but my memory sucks....
Can you post a pic?
What strain?

Week 5 is soon for symptoms of onset of death which I see that the last week of flower (when I was growing).

I'm sure the pros will have more ? but thought I'd hit the first set.

 

[KADE]

Ph 5.8-6.2 is traditionally safe for hydro... how much lighting do you have? There might not be enough light penetration if your plants are quite big or bushy.
Oldest fan leaves on the main stem die first... then the rest... starting at the bottom branches.