Plants dying in flower ?

sero1991 · Jan 6, 2020

Hello,
pH is at 5.8
Water temps 60
ppm 1200
Humidity 44, temps 72
They are at week 7 of flowering; LED lights are 20 inches from canopy, before I had very intense lights at 16 inches away and thought light burn because of the top buds turning white .. so I replaced them with the one I’m using now at 20 inches away and much weaker .. no change tho.
The leaves are showing brownish/ orange leaf tips are crispy and pointing down as seen in pic. What am I doing wrong ?!?

Arnski5000 · Jan 6, 2020

What week of flower are you at

sero1991 · Jan 6, 2020

Arnski5000 said:
What week of flower are you at

Week 7

Dumbguyneedshelp · Jan 6, 2020

Have a pic of the entire plant?

sero1991 · Jan 6, 2020

Dumbguyneedshelp said:
Have a pic of the entire plant?

Not at the moment.. but most of the fan and sugar leaves on the top are like that ..

Arnski5000 · Jan 6, 2020

Not to sure tbh mate Maybe lack of nitrogen but at week 7 if buds looking OK you should be able ride it out hopefully. Had a few like that myself few weeks ago. All is OK now

Airwalker16 · Jan 6, 2020

60°F water temp is so fuckin cold

Renfro · Jan 7, 2020

Airwalker16 said:
60°F water temp is so fuckin cold

Yep, that pretty much halts uptake and growth.

Airwalker16 · Jan 7, 2020

Week7 though, I feel he might just be mistaking natural senescence for nutrient burn/deficiency.

sero1991 · Jan 7, 2020

Airwalker16 said:
60°F water temp is so fuckin cold

DWC water temps are supposed to be between 62-68 mine was just 60 for maybe less then a week .. the problem was occurring before the slight 2 degree off

sero1991 · Jan 7, 2020

Airwalker16 said:
Week7 though, I feel he might just be mistaking natural senescence for nutrient burn/deficiency.

Thank you for your reply, and this has been an issue since week 4-5, like I mentioned, the top of this plants colas were turning white, aka light bleach, and was wondering if the crisping of the leaves stop after changing the LED lights or doesn’t and if anyone’s had experience in light burn ?

Airwalker16 · Jan 7, 2020

sero1991 said:
Thank you for your reply, and this has been an issue since week 4-5, like I mentioned, the top of this plants colas were turning white, aka light bleach, and was wondering if the crisping of the leaves stop after changing the LED lights or doesn’t and if anyone’s had experience in light burn ?

Yes sir. It seems to be all fine and dandy until those last 3 weeks things start crisping up for whatever reason. Just need to dim or hang higher at that point.

rkymtnman · Jan 7, 2020

sero1991 said:
ppm 1200

this.

sero1991 · Jan 7, 2020

rkymtnman said:
this.

This is too high for flowering?

Airwalker16 · Jan 7, 2020

sero1991 said:
This is too high for flowering?

In DWC, absolutely. Usually it's never above 800.

Airwalker16 · Jan 7, 2020

Also, just set your chiller for 66°F and forget it.

rkymtnman · Jan 7, 2020

sero1991 said:
This is too high for flowering?

Your burnt leaf tips are trying to tell you this.

sero1991 · Jan 7, 2020

Airwalker16 said:
In DWC, absolutely. Usually it's never above 800.

Thank you very much

sero1991 · Jan 7, 2020

rkymtnman said:
Your burnt leaf tips are trying to tell you this.

Yes, I’ve just lowered it .. and also there was definitely light burn as well .. great experience for sure tho .. first time trying DWC

Plants dying in flower ?

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