Brown Spots On Leaves, High PPM

[Sologrow67]

Hey Guys Im new to the grow community and im about a month and a half in on my Critical 2.0 Auto and it is now starting to bud. However , I now have brown spots and leaves starting to curl and while trying to figure out the issue, i tested my run off ppm and it was almost 2300 (Calibrated)!I was able to flush the Nutes out of my fox farm medium and get ppm down to 1080. Any help getting my leaves back green would be lovely! EC started in the 4000s i believe before flush.

 

[Sologrow67]

I also have two more cannabis plants in veg currently in the same tent showing yellowing defencies because of the RH of the tent for the budding plant. Any way I can fix these problem while my main plant is in flowering stage?

 

[2Bad]

@Shaded_One i'm thinking calcium/magnesium def...whatcha think?

Also sologrow...we need pics of the vegging plants . Deficiences aren't caused by rh too often.

 

[Sologrow67]

@Shaded_One i'm thinking calcium/magnesium def...whatcha think?

Also sologrow...we need pics of the vegging plants . Deficiences aren't caused by rh too often.

 

[Shaded_One]

@Shaded_One i'm thinking calcium/magnesium def...whatcha think?

Also sologrow...we need pics of the vegging plants . Deficiences aren't caused by rh too often.

he flushed all the nutrients out of his soil that's my $0.02

Need way more info

 

[2Bad]

Hmm.. tough one for me. @Shaded_One or @mysticepipedon @freezeland2 should be able to help with the vegging ones

 

[Sologrow67]

he flushed all the nutrients out of his soil that's my $0.02

Need way more info

I didnt flush until after i noticed the brown spots and after i measured the ppms that were at 2300. Also ph of the soil was at 5.8 if that makes a difference. Thank you for the replies btw!

 

[Sologrow67]

Ask away like I said Im amateur and learning a lot on the fly!

 

[Eledin]

Considering that your ppm were almost twice as recommended for most cannabis plants during flowering Im assuming its nute burn. Also autos tend to eat less. More ideas?

 

[2Bad]

if you ever need help on the fly i like the website grow weed easy go to the diagnose your plant section. it's pretty accurate.

 

[Shaded_One]

Indoor or Outdoor?
Soil or Hydro?
Any Pests?
What Strain is it?
Is it Indica, Sativa or Hybrid? What percentages?
Is it in vegetative or flowering Stage?
If in vegetative stage... How Long?
If in flowering stage... How Long?
How many plants?
If Soil... what is in your mix?
If Soil... what size pot?
if coco, how often are you feeding?
PH of reservoir?
PH of water prior to feeding?
If Hydro, reservoir size?
If Hydro, reservoir Temperature?
If Hydro, what type of Setup?
Is it air cooled?
Temperature of Room/Tent?
Humidity of room/Tent?
How often are you watering?
Type and strength of fertilizers used?
Size or square footage of room?
Light manufacturer, height and what percentage is the light intensity?
Size (Wattage) of Light? How Many?

This information is necessary for accurate support to be given.

 

[Sologrow67]

if you ever need help on the fly i like the website grow weed easy go to the diagnose your plant section. it's pretty accurate.

Thank you

 

[Shaded_One]

Considering that your ppm were almost twice as recommended for most cannabis plants during flowering Im assuming its nute burn. Also autos tend to eat less. More ideas?

ppm in hydro is not the same as testing ppm of runoff in soil with organic ferts

just fyi

 

[Sologrow67]

Indoor or Outdoor?
Soil or Hydro?
Any Pests?
What Strain is it?
Is it Indica, Sativa or Hybrid? What percentages?
Is it in vegetative or flowering Stage?
If in vegetative stage... How Long?
If in flowering stage... How Long?
How many plants?
If Soil... what is in your mix?
If Soil... what size pot?
if coco, how often are you feeding?
PH of reservoir?
PH of water prior to feeding?
If Hydro, reservoir size?
If Hydro, reservoir Temperature?
If Hydro, what type of Setup?
Is it air cooled?
Temperature of Room/Tent?
Humidity of room/Tent?
How often are you watering?
Type and strength of fertilizers used?
Size or square footage of room?
Light manufacturer, height and what percentage is the light intensity?
Size (Wattage) of Light? How Many?

This information is necessary for accurate support to be given.

Indoor Hydro grow using foxfarm ocean forest soil. in a 3x3 grow tent. budding plant and droopy plant are both Critical Auto 2.0 and other small plant is Girl Scout Cookies. I believe the two smaller plants were in Veg(Week 4). All are in one gallon soft pots, Budding plant has self watering reservoir but I am self watering until soil dries from the flush. Tent is consistently at 77-79 degrees with 45-50% RH. One 1000W Aiydu (Amazon brand) light

 

[Sologrow67]

ppm in hydro is not the same as testing ppm of runoff in soil with organic ferts

just fyi

Yes sorry I tested the runoff ppm

 

[Shaded_One]

Nope organics imo should not use EC and rather are usually dosed by volume or weight. There are to many other things that add to the ppm in organics that are not nutrients. In many cases you see someone using organics getting 3000 ppm run off and the plants are happy and healthy. But as i say EC is just not a good option and imo a soil analysis is what should be done

this is an @Aqua Man quote btw

 

[Shaded_One]

I'll let the hydro growers help you out more and see myself out at this point :)

They are going to need to know what nutrients you are using and what your feed rate has been at the very least

 

[Sologrow67]

I'll let the hydro growers help you out more and see myself out at this point :)

They are going to need to know what nutrients you are using and what your feed rate has been at the very least

Thanks for all the feedback!

 

[Eledin]

this is an @Aqua Man quote btw

Thanks for the info! I didnt know ppms could get as high as 3000ppm in the runoff using organic.
EDIT: Makes sense also organic nutes are way thicker in consistency which should had given me a hint but I have not been measuring the ppm since I swaped to AN organics.

 

[Shaded_One]

Thanks for all the feedback!

No problem...how are you growing hydro with soil btw? :P

So are you using synthetic based fertilizers right now? How often are you feeding and at what rates? How are you watering these plants? How often and how much?