Why?

SPLFreak808

Well-Known Member
Post up your setup

Medium type,lights,light distance, last two feeds,how much & often you water.

"Looks" like excess N.
 

GimmieThe Loot

Well-Known Member
Post up your setup

Medium type,lights,light distance, last two feeds,how much & often you water.

"Looks" like excess N.
Im growing in happy frog at the top and ocean forest at the bottom. I have a viparapectra par 450&par 600 over them. Last two waterings was with regular phd water. And i water whenever the pot feels dry and light. My lights are a good 18in aways the taller plant in the back is more like 12inch away from the light
 

ANC

Well-Known Member
If you could add three more parameters it might be useful to see how you are doing from VPD perspective.
Ambient temp, RH (and leaf temp optional if you have an IR meter)
 

GimmieThe Loot

Well-Known Member
Bro i dont even kno what you are talking about. I suppose this is why im having these issues. This is my first year growing, 1 year almost completed. Can you enlighten me?
 

Lite

Well-Known Member
is that soil, coco or promix?

What temp are u watering with? that looks like total root shock to me.
 

GimmieThe Loot

Well-Known Member
is that soil, coco or promix?

What temp are u watering with? that looks like total root shock to me.
Ok so i let my water sit out .. Maby the water was to cold, when I watered them last. I. Mean the temps have been dropping here lately. Should my water be room temp. And its hf at the top and of at the bottom
 

GimmieThe Loot

Well-Known Member
Yea see I knew it was something goin on, the leaves started to look different. Ok so I know from now on... So how will this affect my plants? They're just starting to show pre flowers. Veg is just about over with?
 

Lite

Well-Known Member
They should rebound. Shock can take a day to a couple weeks sometimes to recover. Keep the humidity in the tent high, keep good airflow, keep your PH 5.5-6.5 depending on what ur using, water a few degrees below room temp.
 

chemphlegm

Well-Known Member
I have a spring water well pump inside of my grow and the temperature almost all year long
is 50- right out of the hose end sprayer I use to water directly into the roots/pots of promix.
they grow fast and finish when supposed too
It shocks them into being the best weed we ever had in our lives every time I think !
 

Lite

Well-Known Member
I have a spring water well pump inside of my grow and the temperature almost all year long
is 50- right out of the hose end sprayer I use to water directly into the roots/pots of promix.
they grow fast and finish when supposed too
It shocks them into being the best weed we ever had in our lives every time I think !
it shocks them into being great? What are the mechanics of this?
 

chemphlegm

Well-Known Member
it shocks them into being great? What are the mechanics of this?
I had to reverse engineer to come to this conclusion. I run a tight ship here except the only resource I dont control is watering temps so one might consider that as my weakest resource. You say it shocks them being that cold and I read that often. As my plants will grow to their limiting factor, their weakest resource provided- makes sense that the cold water is responsible for any limitations I may suffer resulting in my final product, which is totally awesome every time, so, must be the cold water right?:P

seriously though, I dont blame the cold water for anything. exactly nothing, I dont think it matters much unless extreme either way, and now I know 50 F is not extremely cold.;)
 

MichiganMedGrower

Well-Known Member
I have a spring water well pump inside of my grow and the temperature almost all year long
is 50- right out of the hose end sprayer I use to water directly into the roots/pots of promix.
they grow fast and finish when supposed too
It shocks them into being the best weed we ever had in our lives every time I think !
The cold water is likely slowing or halting growth for at least a couple hours while the pots heat back up.

Bet warmer water would increase your yield.
 

MichiganMedGrower

Well-Known Member
I had to reverse engineer to come to this conclusion. I run a tight ship here except the only resource I dont control is watering temps so one might consider that as my weakest resource. You say it shocks them being that cold and I read that often. As my plants will grow to their limiting factor, their weakest resource provided- makes sense that the cold water is responsible for any limitations I may suffer resulting in my final product, which is totally awesome every time, so, must be the cold water right?:P

seriously though, I dont blame the cold water for anything. exactly nothing, I dont think it matters much unless extreme either way, and now I know 50 F is not extremely cold.;)

It's about 15 degrees below a safe uptake temp.
 

chemphlegm

Well-Known Member
i wonder if the water is 50 when it hits the bottom of the container.
:P

I used big tanks for some years before I installed the pump, Those sat inside a section of work grow space and stayed around 65 in the closed off space.
I would have continued to use them filled them from the well, that was my intention. but one year I used the spigot and watched closely....no negatives/positives either way for me. so I skip the pita tanks now for fresh water and use the space to store my promix.
maybe I'll do an ice watering grow and check this out....
 

MichiganMedGrower

Well-Known Member
i wonder if the water is 50 when it hits the bottom of the container.
:P

I used big tanks for some years before I installed the pump, Those sat inside a section of work grow space and stayed around 65 in the closed off space.
I would have continued to use them filled them from the well, that was my intention. but one year I used the spigot and watched closely....no negatives/positives either way for me. so I skip the pita tanks now for fresh water and use the space to store my promix.
maybe I'll do an ice watering grow and check this out....

Guess you have enough light and warmth to keep the medium from cooling down too much.

It's science. If it stayed 50 degrees the plant would start to shut down processes.

I wonder if it tricks the plant into earlier harvest?
 

chemphlegm

Well-Known Member
Guess you have enough light and warmth to keep the medium from cooling down too much.

It's science. If it stayed 50 degrees the plant would start to shut down processes.

I wonder if it tricks the plant into earlier harvest?
My medicine man was the only one I'd say was an early finisher, the rest are within specs.
I saw the cold water detriment in my hydro cold water reservoirs for sure when they were buried
but always knew wouldnt matter to me in my soil

room temp-77 high 68 low
water going in was 51 F today,
promix top soil was 70-74 @ mid lights on
I stayed till run off and with a laser measured run off temp= 69-72

I get so lucky at this....
 
Top