Confused as hell

[antiskeptic]

Hey guys, got a rdwc 4 bucket system. Ph 5.5, ppms generally 500. Dutch master a and b veg, zone, silica and calmag all at half strength.

 

I'm getting signs of nute burn/calmag deficiency yet that can't be the issue. I had root rot at the start due to high temps but sorted that with a chiller and lots of zone and time. Root mass is pretty much pearly white now and I get plenty of new growth. I only get these issues on older fan leaves. Anyone shed light as to what's happening? http://tapatalk.imageshack.com/v2/14/12/30/a7b58988f10cf7c343766b6da27e61a0.jpghttp://tapatalk.imageshack.com/v2/14/12/30/160092d2fd246bc4d3be823f09b3434d.jpg

 

Thanks in advance guys

[spider_b]

i would think thats just part of the natural cycle mate 

 

ur  roots are white and the plants look pretty healthy

 

I wouldnt be stressing too much

[Knarfman]

I agree with Spider just looks like the last evidence of the root problem.

Your roots are healthy now and your new growth looks great.

I wouldn't worry too much.

 

Are your pots white as they look in the photo as you may be getting light through the sides to the roots.

Roots (especially in DWC) are much more resilient to high heat when in the dark.

 

 

[antiskeptic]

Cheers guys, taken a load if my shoulders, I'm a natural stress head as it is. Nah those buckets are black and sprayed with mirror chrome to add reflection

[sunnycoaststoner]

may be look at bringing your ph up a little, usually between 5.8 and 6.5 is the aim, purfect for making sure they in the right range to feed properly. they looking great again dude.