large plant 30 days into flowering DWC massive yellowing fan leaves please help

[MacGyver420]

hi everyone heres the information for you guys first



plant is in a DWC system, using lucas formula + 5ml gallon liquid kool bloom
ph is set to very close to 6 (i use drops dont have an electronic tester)

air temp's are 65F at night and 73F during lights on
RH is 30-40% at all times

water temp stays at 68F

45liter air pump running 2 stones in this one bucket but the roots have just become massive; to the point of growing over the airstones



now the problem:

i have not started flushing this plant at all its just doing this on its own worries me

you can see the yellowing of the leaves

problem started 2 weeks ago with just 1 fan leaf and is not all over the plant
it started with the lowest and oldest fan leaves and has made its way up
if i dont cut the leaf off it will suck the moisture right out of it till it shrivels up and falls off on its own

not every leaf is yellow id say 95% of the leaves near budsites are a healthy green but the fan leaves yellowing quickly and progressivly

any ideas or experience will be appreciated


IS IT SAFE TO CUT SOME EXCESS ROOT MASS AWAY? OR WILL THIS HARM THE PLANT?

 

[digital]

The plant looks fine to me. Yellowing of leaves is common and normal during flowering, especially in the second half of flowering.

You could root prune your plant a bit if you wanted to. I wouldn't go overboard with it, though.

 

[WeedChuck]

looks normal to me. If you have a mother and are cloneing off of her, remember to boost the nitrogen feed when you switch to 12/12. This will help from haveing the leaves turn yellow prematurely the next time around..

 

[hazy]

maybe it wouldn't hurt to up the nutes bit. pH can go 5.5-6.0 range.
It's a nice looking plant.

 

[dr-dank]

roots are like pron!

Nice work!

 

[Aeroguerilla]

def nitrogen give her a hit... nice roots

 

[ibjamming]

Keep doing what you're doing...it's not worth doing anything about. In another two weeks you'll begin a water only flush anyway...THEN you're going to see ugly leaves!