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Led Light burn or mag deficiency?

  • Thread starter Thread starter Growinggrow33
  • Start date Start date Jul 30, 2021
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Led Light burn or mag deficiency?

Growinggrow33 Jul 30, 2021 38 Replies 11,189 Views
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Aqua Man

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#21
Growinggrow33 said:
I currently have it at 25% power though and that’s what it was set at when I did the lux reading. Should I still move them up?
Click to expand...
So I have o comparison on those setting to be able to say yay or nay. I'd go by the recommended and raise to 40" and 75%. Maybe check the lux after doing so.
 
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Growinggrow33

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#22
Aqua Man said:
So I have o comparison on those setting to be able to say yay or nay. I'd go by the recommended and raise to 40" and 75%. Maybe check the lux after doing so.
Click to expand...
Thank you very much, I appreciate your time!
 
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ComfortablyNumb

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#23
You are growing in Roots Organic Lush. A living soil. You are double feeding.
What's your watering schedule like?
 
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ComfortablyNumb

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#24
Is this your light?
https://wegrowpros.com/data/specs/gps-hm-660w.pdf
 
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Growinggrow33

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#25
ComfortablyNumb said:
You are growing in Roots Organic Lush. A living soil. You are double feeding.
What's your watering schedule like?
Click to expand...
Well I just started using roots organic lush this week when I transplanted her to a bigger pot, prior to that I was using happy frog soil and used roots organic calmag first time on Sunday. I used it again today I usually just wait until the top is not wet to water.

You think I shouldn’t use the calmag and she will get what she needs from the soil?
 
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Growinggrow33

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#26
ComfortablyNumb said:
Is this your light?
https://wegrowpros.com/data/specs/gps-hm-660w.pdf
Click to expand...
Yes
 
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ComfortablyNumb

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#27
The soil you are using is already feeding the plant. Let it settle. This is not the same stuff you may have been using. Lush is living and will jack with other nutes.
How and when do you water?
Have you been checking ppms before and after? They probably look ok.

This is a light issue for sure, that leaf pattern is unmistakable. But you are complicating it with the extra feed.
Just water for now and lets see what happens with the new growth.

How far above the tops is the light?
Do you have a no-touch thermometer?
Take the plants temp.
 
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ComfortablyNumb

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#28
That's a nice light. What did that run you?
 
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Growinggrow33

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#29
I know with living
ComfortablyNumb said:
The soil you are using is already feeding the plant. Let it settle. This is not the same stuff you may have been using. Lush is living and will jack with other nutes.
How and when do you water?
Have you been checking ppms before and after? They probably look ok.

This is a light issue for sure, that leaf pattern is unmistakable. But you are complicating it with the extra feed.
Just water for now and lets see what happens with the new growth.

How far above the tops is the light?
Click to expand...
I water a quart at a time, now that I’m using a 10gal fabric Pot I water way slower I really only watered her once since I transplanted her on Wednesday.
The lights are about 22in away
 
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ComfortablyNumb

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#30
Growinggrow33 said:
I water a quart at a time
Click to expand...
DING! We have a winner.
This is why its not handling light properly.

Please read both of these;

Marijuana Watering, how media, pot size/shape and environment affect it

Discuss different watering methods for growing your own weed from seeds. Our community members give helpful tips on how pot size and material, as well as environmental factors affect growing cannabis.
www.thcfarmer.com

Watering for Soil Growers Only

Watering in Soil Watering plants gives many new growers anxiety issues. Because we want our plants to do the best they can, we over water and some even underwater. To help relieve the stress and confusion, this is sort of a step by step of what to do and look for when you grow in soil...
www.thcfarmer.com
 
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Growinggrow33

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#31
ComfortablyNumb said:
DING! We have a winner.
This is why its not handling light properly.

Please read both of these;

Marijuana Watering, how media, pot size/shape and environment affect it

Discuss different watering methods for growing your own weed from seeds. Our community members give helpful tips on how pot size and material, as well as environmental factors affect growing cannabis.
www.thcfarmer.com

Watering for Soil Growers Only

Watering in Soil Watering plants gives many new growers anxiety issues. Because we want our plants to do the best they can, we over water and some even underwater. To help relieve the stress and confusion, this is sort of a step by step of what to do and look for when you grow in soil...
www.thcfarmer.com
Click to expand...
Wait I water more than just a quart of water I just do it a quart at a time just to not throw it all in at once idk if I made it confusing lol
 
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ComfortablyNumb

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#32
Growinggrow33 said:
Wait I water more than just a quart of water I just do it a quart at a time just to not throw it all in at once idk if I made it confusing lol
Click to expand...
Ok. When you read these you will see that you should be soaking the soil everytime you water.
If you have a 3 gallon pot, start with 1/2 gallon of water and go up from there to fully soak it.
5 Gallon, 1 full gallon of water.
7 gal, 2 gals h2O
10 gal pot, 5 gals water......

We water a bit differently. We have a large pot the plant pot fits in. We put the plant in and fill the outside pot, the plant pot absorbs as much as it can and them we let it drain before it goes back to the tent floor. During the soak, we also use a long thin probe to make sure there is no hydrophobia setting in.
Doing it this way, the top STAYS dry. No fungus gnats.

The only time we do it differently is when we add an amendment/feed or MBE.
 
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Growinggrow33

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#33
ComfortablyNumb said:
Ok. When you read these you will see that you should be soaking the soil everytime you water.
If you have a 3 gallon pot, start with 1/2 gallon of water and go up from there to fully soak it.
5 Gallon, 1 full gallon of water.
7 gal, 2 gals h2O
10 gal pot, 5 gals water......

We water a bit differently. We have a large pot the plant pot fits in. We put the plant in and fill the outside pot, the plant pot absorbs as much as it can and them we let it drain before it goes back to the tent floor. During the soak, we also use a long thin probe to make sure there is no hydrophobia setting in.
Doing it this way, the top STAYS dry. No fungus gnats.

The only time we do it differently is when we add an amendment/feed or MBE
Click to expand...
ComfortablyNumb said:
Ok. When you read these you will see that you should be soaking the soil everytime you water.
If you have a 3 gallon pot, start with 1/2 gallon of water and go up from there to fully soak it.
5 Gallon, 1 full gallon of water.
7 gal, 2 gals h2O
10 gal pot, 5 gals water......

We water a bit differently. We have a large pot the plant pot fits in. We put the plant in and fill the outside pot, the plant pot absorbs as much as it can and them we let it drain before it goes back to the tent floor. During the soak, we also use a long thin probe to make sure there is no hydrophobia setting in.
Doing it this way, the top STAYS dry. No fungus gnats.

The only time we do it differently is when we add an amendment/feed or I guess I thought you shouldn’t get runoff especially in soil
Click to expand...
ComfortablyNumb said:
Ok. When you read these you will see that you should be soaking the soil everytime you water.
If you have a 3 gallon pot, start with 1/2 gallon of water and go up from there to fully soak it.
5 Gallon, 1 full gallon of water.
7 gal, 2 gals h2O
10 gal pot, 5 gals water......

We water a bit differently. We have a large pot the plant pot fits in. We put the plant in and fill the outside pot, the plant pot absorbs as much as it can and them we let it drain before it goes back to the tent floor. During the soak, we also use a long thin probe to make sure there is no hydrophobia setting in.
Doing it this way, the top STAYS dry. No fungus gnats.

The only time we do it differently is when we add an amendment/feed or MBE.
Click to expand...
I guess I thought you shouldn’t get runoff when using soil. Your water technique is interesting love it
 
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ComfortablyNumb

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#34
Growinggrow33 said:
I guess I thought you shouldn’t get runoff when using soil. Your water technique is interesting love it
Click to expand...
You're not trying to get runoff, but you will get some. We water our veggies with it.
 
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Growinggrow33

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#35
ComfortablyNumb said:
You're not trying to get runoff, but you will get some. We water our veggies with it.
Click to expand...
I will keep that in mind, thank you so much I appreciate your time.
 
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Mugwort

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#36
Growinggrow33 said:
Hi everyone! Does this look like magnesium deficiency or something else? The fan leaves edges started browning so at first I thought it was light burn, then nute lockout and now mag deficiency.
I was using happy frog soil and recently changed to roots organic lush soil, she was in 7gal plastic pot for a while transplanted her to a 10gal fabric pot on Wed, also used roots organic calmag twice this week.
Led 660w
Temp 76-80F
Rh 65
Click to expand...
Looks like lower leaves and those with less light exposure are healthier! My voice of inexperience tells me to raise light or if your lamp has a variable dimming knob to turn it down.
 
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Growinggrow33

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#37
Mugwort said:
Looks like lower leaves and those with less light exposure are healthier! My voice of inexperience tells me to raise light or if your lamp has a variable dimming knob to turn it down.
Click to expand...
Yes I have it set to the lowest setting.
 
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royfree2grow

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#38
Mg def.
Id check the rootzone first, then if the ph is balanced id use some MgSO. It happens because u using ro w/o compensating.
Best of luck
 
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Treecutter

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#39
My vote is deficiency or combo of deficiency and ph off. Lower leaves look the same as the top.

This pic below the plant in the front has some leaf bleaching that mimics calmag deficiency or ph issues on the top leaves. When you look at the bottom leaves or the plants in the back, there's no issues.
 

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