Whats wrong with my plants. This always happens shortly after flowering cycle begins.

[The420man]

Whats wrong with my plants. This always happens shortly after flowering cycle begins.

 

[Ben.Jamin]

Your grow looks like my last 3, and the one I am in now is starting same problem. Several determined mine to be Nute burn/ lockout.

I have no advice other than someone much smarter than me will figure your issue out, thay are great.

 

[Porky1982]

The pH is way out for both of yous!!
Have either of you checked the pH of ya run off?
I got lazy last grow and my pH out was 7.8 by the end!

 

[Eclipted]

I’m with porky def check your ph. Also what nutes are you running before flower and during flower? I ran into lockout due to over use of cal mag. Little flush and cutting back the calmag to 1 every 3 waters helped a lot. What’s your temp and humidity?

Personally, looks like a late stage mag deficiency to me but imma newbie so don’t take my word for it. @Captspaulding @Trash_2002 any ideas ?

 

[Zill]

T420M,

You hit it on the head, “The plants begin to go downhill after flowering.” Yup. Annual plants call it a day once in full flower. Unfertilized flowers probably hasten the senescence.

Zill.

 

[Captspaulding]

I would say, 1 it’s too hot. 2 what are you feeding and how often? Light height ect….late fade is definitely a thing but this example, is toasted. Besides that, it looks like lack of potassium together with not enough airflow too hot.

 

[The420man]

The pH is way out for both of yous!!
Have either of you checked the pH of ya run off?
I got lazy last grow and my pH out was 7.8 by the end!
View attachment 2019814View attachment 2019815

still looks good though

 

[The420man]

I’m with porky def check your ph. Also what nutes are you running before flower and during flower? I ran into lockout due to over use of cal mag. Little flush and cutting back the calmag to 1 every 3 waters helped a lot. What’s your temp and humidity?

Personally, looks like a late stage mag deficiency to me but imma newbie so don’t take my word for it. @Captspaulding @Trash_2002 any ideas ?

I only use distilled bottled water. I have used a compost tea two times since flowering but have not checked ph.

 

[Captspaulding]

I only use distilled bottled water. I have used a compost tea two times since flowering but have not checked ph.

You don’t buffer the distilled water with cal mag?
You need too if you aren’t. A ton of issues can get started from that.

 

[The420man]

I am using a sun system lec lights in a 3x3 tent.

The exhaust fan I have is more than enough to keep air circulating but light possibly too hot. Anyone know what I can do to have my lights flush with the metal bars (as close as possible to metal bars)?

 

[Captspaulding]

is cal mag all natural? Will it affect tlo gardening?

There are organic options out there yes, for example….

https://www.google.com/search?q=is+cal+mag+organic&rlz=1CDGOYI_enUS916US916&oq=is+cal+mag+orfan&aqs=chrome.1.69i57j0i13i512j0i8i13i30l3j0i390i650l3.4781j0j4&hl=en-US&sourceid=chrome-mobile&ie=UTF-8#vhid=x0lWsCbc-T5PGM&vssid=l

 

[The420man]

No I havent added cal mag to my water. I think it def is a ph issue

 

[Captspaulding]

No I havent added cal mag to my water. I think it def is a ph issue

There is definitely something going on that’s for sure, good luck homie!

 

[The420man]

After watering my plants, will the soil match the pH of the water that was used? Example: if soil was pH 6.5 before water and the water used for watering had a pH of 7.2, will the soil pH become 7.2 also after watering?

 

[Captspaulding]

it would bring the soil ph up, not as high as that, the soil would buffer it.

 

[Eclipted]

After watering my plants, will the soil match the pH of the water that was used? Example: if soil was pH 6.5 before water and the water used for watering had a pH of 7.2, will the soil pH become 7.2 also after watering?

soil will buffer water ph a little. If the soil was high ph to begin with that’s another problem. If the soil sits at a 6.2 and you pour 7.0 water in there it’ll buffer it down to 6.5ish give or take. Ph your water either way it’ll help with nutrient intake. And def give calmag your plants require them to thrive

 

[Captspaulding]

I am using a sun system lec lights in a 3x3 tent.

The exhaust fan I have is more than enough to keep air circulating but light possibly too hot. Anyone know what I can do to have my lights flush with the metal bars (as close as possible to metal bars)?

Heavy duty zip ties

 

[The420man]

what is optimal ph for water and what can I do to bring water pH up or down organically?

Soil is supposed to be at 7-7.5?

 

[Porky1982]

I only use distilled bottled water. I have used a compost tea two times since flowering but have not checked ph.

There is ya problem right there!!
What medium are they growing in?

 

[Porky1982]

what is optimal ph for water and what can I do to bring water pH up or down organically?

Soil is supposed to be at 7-7.5?

Depends on what they are growing in!
Answer that and I can help ya!