Curling leaves / redness / large ridges :(

[rattyraiz]

My first post here and sadly it had to be in here first. A little background first...this is my first grow, 2nd veg cycle if you will...I have successfully flipped sours and durbans and they are almost finished (hoping no issues) meanwhile I started veggin a white widow to be a mom and that leads us to now.

i got the clone and it was doing great until about a week ago i noticed the leaves felt very dry, slowly started curling upwards like a canoe. I did due research, read books etc and figured it was a mag def. So i went and got epsom and foliar fed it last night. I mean overnight the thing just turned from slight curling to straight up caccooning/dying leaves.

-water filtered through small boy then ph'ed
ph - always ~6.5 (recently calibrated as well)
temp - 65-70 (not ideal i know)
FFOF soil
nutes - age old grow / bloom*

For my first run, and really this one, i just used water thinking the soil was good enough for veg, which it was in the current flowering batch. Case in point I have yet to even use the Grow nutes. Any advice would be MUCH appreciated...not even sure this is salvageable at this point but I would love to learn from this mistake.

 

[rattyraiz]

forgot to add its under cool flouros so I am fairly certain it is not heat stress.

 

[IWanaGetHiSoHi]

What's the pH of your medium? What is the pH of your run off? Is it straight OF or mixed with something? Is there adequate ventilation?

 

[rattyraiz]

Straight OF soil...ventilation is good. Run off ph is has pretty much stayed the same as what was put in.

 

[rattyraiz]

I would also like to add, since you cannot tell from the pics well, the redness are not spots but almost the color of the actual leaf matter in streaks between ridges. It certainly seems as though the foliar feeding made matters worse or it was just a coincidence, not sure.

 

[cobcoop]

Too much salt can lock out K, could be the problem. I'd flush and feed at half strength.

 

[rattyraiz]

Thanks cob. I watered yesterday so should I wait until it drys out or? And since I have never really given it nutes should I try the age old grow or? Should I clip the dying leaves?

 

[hazy]

Top leaves seem to be affected, so we have to look at immobile nutrients like Mn and Fe.
Mn will start to lock out above 6.5. Feed them. Lower pH just a bit. Maybe they'll be ok.

 

[IWanaGetHiSoHi]

Pic #3 shows a lower fan in the same condition.

 

[cobcoop]

How much salt did you use in your solution for the spray? I've read 2% solution for that is the best. Could be too much salt in the spray.

 

[rattyraiz]

i used one teaspoon/gal epsom...new growth seems to be doing better so heres hoping. thx guys!

 

[jyme]

well i would start feeding them and dont forget the micro nutr and i would do folar feedings till they recover

 

[rattyraiz]

well f**k me...now its starting to happen in the flower room on tops (overnight yet again). Could I have just biffed a watering big time? Forget the widow these obviously are a tad more important.

Raised the light just to be sure but since it happened to both veg/flower around the same time I did something wrong.

 

[cobcoop]

Usually you will see rust spots starting with a mag def. It's kinda hard to tell from the pics but I don't see any of that. Did you say you had not fed the ones in flower yet?

 

[rattyraiz]

flower have been getting age old bloom every water. it is only affecting the durbans, the ones in the back (sours) seem great. It is only the very tops right now but like i said it happened over night. I just flushed them all with plain water.

 

[jyme]

ok it looks like a Potassium def. the tips of the leaves curl and the edges burn and die. Older leaves may show a red color and leaves could curl upwards check out the complete guide tp sick plants

 

[rattyraiz]

thank you sir! So I assume my ph was mucked at some point causing the Potassium to get locked out? Flushed and will triple check ph of nute solution next time.

 

[jyme]

yea ph is the key to every thing to low it locks out nutr to high it locks out nutr and the salts just build up and become toxic im always checking my ph on run of pre water nutrent solutions soils it has become one of my number 1 priortys