veg leaf issue

[pdasterly]

og kush in rdwc(current culture diy)
day 16 in veg, plants have tripled or more in size

air temp 70-73 @ 45-55 humidity

670 ppm(half is cal-mag), using 0ppm ro water, maxi gro nutes

water temp 68-70

ph 6.3

1000 de/630 cmh(3100K)

 

[Beachwalker]

PH too high / check for bugs

 

[LittleDabbie]

Looks more like heat stress to me?

 

[Aqua Man]

Rh to low, ppm and pH to high. Probably to much airflow and light to close also.

What type of lighting? How close?

What do the roots look like?

 

[Aqua Man]

Looks more like heat stress to me?

I agree and a bunch of other issues

 

[Aqua Man]

Need to get that light higher asap your cooking em.

 

[pdasterly]

PH too high / check for bugs

on my 3rd week of avid treatments, havent seen any bugs, this strain is susceptable to pm, this my 3rd grow on this strain

 

[pdasterly]

Looks more like heat stress to me?

temp never goes over 75, humidity will dip to 40 but i cant control that, vpd for that temp is way too low(62-64)

 

[pdasterly]

Rh to low, ppm and pH to high. Probably to much airflow and light to close also.

What type of lighting? How close?

What do the roots look like?

rh is low(uncontrollable), i set the ph higher to absorb more cal-mag since that was my first issue.

1000DE set to 600W or 60% with 630cmh supplemental, 3ft away from top of canopy


chiller and hydroguard and liquid orca

 

[pdasterly]

Need to get that light higher asap your cooking em.

i just turned the hps light off

 

[LittleDabbie]

how close is the light to the top of the plants?

Got a lumens app on your phone? get a reading.

Heat stress as mentioned above.

 

[Aqua Man]

Roots look great so that's a plus. Using RO add 100-150ppm of cal mag then top up ppm with nutes to 400 ppm. The low RH will cause them to drink more so less nutrients needed. There is a lot of damage to the plant and it's not gonna get better, Infact it will get worse. Focus on new growth only. Lower the light intensity significantly and let her recover. You gonna have close to a week of stunting but should see new growth improve in the next couple days. Ph down to 5.6 and let it rise to 6.0 max before lowering it again.

How much does your ph increase in 24 hrs?

 

[Beachwalker]

Wasn't sure what these were?

but agree with above definitely shut off one of the lights or turn it down and drop your pH Aquaman can tell you best pH for your setup good luck

Edit: also looks dark green, overfed?

 

[pdasterly]

Roots look great so that's a plus. Using RO add 100-150ppm of cal mag then top up ppm with nutes to 400 ppm. The low RH will cause them to drink more so less nutrients needed. There is a lot of damage to the plant and it's not gonna get better, Infact it will get worse. Focus on new growth only. Lower the light intensity significantly and let her recover. You gonna have close to a week of stunting but should see new growth improve in the next couple days. Ph down to 5.6 and let it rise to 6.0 max before lowering it again.

How much does your ph increase in 24 hrs?

ph doesnt move, for the first 2 weeks it was falling. Ill have to shut off ro to see exactly what its doing, will have answer tomorrow

 

[Aqua Man]

ph doesnt move, for the first 2 weeks it was falling. Ill have to shut off ro to see exactly what its doing, will have answer tomorrow

That's a problem

And is ppm rising?

What are you using to buffer the ph?

I see what I think happened here. To much light and or ph swings/issues confused with calcium deficiencies.

RO is unstable without a buffer added back.

Suggest reading this.

Marijuana pH Levels for Growing Weed: A Basic Explanation

OK I'm going to do my best to explain PH since its something that is for the most part greatly misunderstood and can be confusing to new growers and even experienced growers alike. This will explain why we need both ppm and PH meters to give us informed information about PH This will be a...

www.thcfarmer.com

 

[pdasterly]

Wasn't sure what these were?

but agree with above definitely shut off one of the lights or turn it down and drop your pH Aquaman can tell you best pH for your setup good luck

Edit: also looks dark green, overfed?

i thought was calmag deficiency, here is pic of full plant, day 16 since transplant from clone

 

[Aqua Man]

i thought was calmag deficiency, here is pic of full plant, day 16 since transplant from clone

Over fed and driven to hard with light and a wild ph. That's what I see.

 

[pdasterly]

That's a problem

And is ppm rising?

What are you using to buffer the ph?

I see what I think happened here. To much light and or ph swings/issues confused with calcium deficiencies.

RO is unstable without a buffer added back.

Suggest reading this.

Marijuana pH Levels for Growing Weed: A Basic Explanation

OK I'm going to do my best to explain PH since its something that is for the most part greatly misunderstood and can be confusing to new growers and even experienced growers alike. This will explain why we need both ppm and PH meters to give us informed information about PH This will be a...

www.thcfarmer.com

ppm is same, botanicare ph up/down when needed, add back is just RO

 

[Aqua Man]

ppm is same, botanicare ph up/down when needed, add back is just RO

So not drinking. That's because the leaves are cooked.

 

[pdasterly]

So not drinking. That's because the leaves are cooked.

gonna reset rez to a lower ppm also