leafs curling up. whats the prob. how to fix??

M&M420

M&M420

Member
hey guys i have 16 plants in veg from seed. im using a cali lightworks solarflare 220 LED. i had the light about 12 inches from top for the last couple weeks with no problems...the other day i noticed a couple of the bottom leaf sets were starting to curl upwards, after looking into this i found that it could be from humidity not being under control or its a heat issue. the humidity in my tent is always about 35-40% doesnt really change that much so im not sure thats the prob. and as far as heat the light i use puts out very little heat and i had it 1ft away from top for almost 3 weeks now and now moved it so its 2ft from top and i am seeing more leafs curl up. any thoughts suggestions/help would be much appreciated...i will attach a pic of the curled leafs .. u can see below some of the leafs curling up esp. the first leaf set on the bottom middle of pic.DSC_2232.JPG DSC_2232.JPG DSC_2229.JPG
also they look very limp today (first time they looked limp after lights have been on for over 2 hours)...i do not over water them at all and ive been using half of recommended dose for nutes/fert. they have never looked like this except when they just wake up. so any thoughts on why they are so limp
 
warble

warble

Well-Known Member
Those girls look indica? What strain? Half the nutes? Those leaves look quite dark green. That usually means too much nitrogen. Did you flush that soil b4 you planted those beans? What's your ph? How many ppm? It could be a lock out. Are you supplementing calmag? 30-40% RH is a little low, but not if you're trying to avoid powdery mildew. If that is not a problem, try cranking the humidity up to 55%. Do you know your temp swing? What line of nutes are you using?
You might want to back off on the nitrogen part of your feed. Throw some calmag in the mix. and maybe back the light off of them. Can you take a picture of your girls w/ proper settings on your camera or turn off the led light when you snap the pic? I don't see the proper colors, unless your camera has the white balance to counter the purple and red of your light. Are you certain that they are not overwatered?
 
nomofatum

nomofatum

Well-Known Member
Those plants most definitely do not have a Calcium or Magnesium deficiency. WTF would the point be in adding CalMag? Seems like people like to make CalMag into a silver bullet, in reality it's just Cal + Mag and most shouldn't ever need Cal unless they choose to filter it out of their water. Never ever buy CalMag or use RO water, that is my recommendation.
 
weedenhanced

weedenhanced

Well-Known Member
M&M420 said:
hey guys i have 16 plants in veg from seed. im using a cali lightworks solarflare 220 LED. i had the light about 12 inches from top for the last couple weeks with no problems...the other day i noticed a couple of the bottom leaf sets were starting to curl upwards, after looking into this i found that it could be from humidity not being under control or its a heat issue. the humidity in my tent is always about 35-40% doesnt really change that much so im not sure thats the prob. and as far as heat the light i use puts out very little heat and i had it 1ft away from top for almost 3 weeks now and now moved it so its 2ft from top and i am seeing more leafs curl up. any thoughts suggestions/help would be much appreciated...i will attach a pic of the curled leafs .. u can see below some of the leafs curling up esp. the first leaf set on the bottom middle of pic.View attachment 3351058 View attachment 3351058 View attachment 3351057
also they look very limp today (first time they looked limp after lights have been on for over 2 hours)...i do not over water them at all and ive been using half of recommended dose for nutes/fert. they have never looked like this except when they just wake up. so any thoughts on why they are so limp
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They look fine I can not see curling
IMO I would move to bigger pots those plants would be root bound in those tine pots
 
weedenhanced

weedenhanced

Well-Known Member
nomofatum said:
Those plants most definitely do not have a Calcium or Magnesium deficiency. WTF would the point be in adding CalMag? Seems like people like to make CalMag into a silver bullet, in reality it's just Cal + Mag and most shouldn't ever need Cal unless they choose to filter it out of their water. Never ever buy CalMag or use RO water, that is my recommendation.
Click to expand...
I so agree with this there is plenty cal mag in tap water
 
M&M420

M&M420

Member
warble said:
Those girls look indica? What strain? Half the nutes? Those leaves look quite dark green. That usually means too much nitrogen. Did you flush that soil b4 you planted those beans? What's your ph? How many ppm? It could be a lock out. Are you supplementing calmag? 30-40% RH is a little low, but not if you're trying to avoid powdery mildew. If that is not a problem, try cranking the humidity up to 55%. Do you know your temp swing? What line of nutes are you using?
You might want to back off on the nitrogen part of your feed. Throw some calmag in the mix. and maybe back the light off of them. Can you take a picture of your girls w/ proper settings on your camera or turn off the led light when you snap the pic? I don't see the proper colors, unless your camera has the white balance to counter the purple and red of your light. Are you certain that they are not overwatered?
Click to expand...
they are seeds from 2 hybrids PCK x sour grapes , and some are PCK x gods gift seeds....PCK father in both cases. PH is a little hight around 7.5. No supplementing with calmag at all. my temp swing is : lowest 70 highest 77. Im using foxfarm big bloom & grow big. also microbrew and kangaroots and i have sledgehammer for lock up. ill try and get a better pic
 
M&M420

M&M420

Member
warble said:
Those girls look indica? What strain? Half the nutes? Those leaves look quite dark green. That usually means too much nitrogen. Did you flush that soil b4 you planted those beans? What's your ph? How many ppm? It could be a lock out. Are you supplementing calmag? 30-40% RH is a little low, but not if you're trying to avoid powdery mildew. If that is not a problem, try cranking the humidity up to 55%. Do you know your temp swing? What line of nutes are you using?
You might want to back off on the nitrogen part of your feed. Throw some calmag in the mix. and maybe back the light off of them. Can you take a picture of your girls w/ proper settings on your camera or turn off the led light when you snap the pic? I don't see the proper colors, unless your camera has the white balance to counter the purple and red of your light. Are you certain that they are not overwatered?
Click to expand...
 

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M&M420

M&M420

Member
warble said:
Those girls look indica? What strain? Half the nutes? Those leaves look quite dark green. That usually means too much nitrogen. Did you flush that soil b4 you planted those beans? What's your ph? How many ppm? It could be a lock out. Are you supplementing calmag? 30-40% RH is a little low, but not if you're trying to avoid powdery mildew. If that is not a problem, try cranking the humidity up to 55%. Do you know your temp swing? What line of nutes are you using?
You might want to back off on the nitrogen part of your feed. Throw some calmag in the mix. and maybe back the light off of them. Can you take a picture of your girls w/ proper settings on your camera or turn off the led light when you snap the pic? I don't see the proper colors, unless your camera has the white balance to counter the purple and red of your light. Are you certain that they are not overwatered?[/QU
Click to expand...
weedenhanced said:
No

nothing to worry about
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ok well thats good 2 know. do you know what the cause of this is?
 
DirtyMcCurdy

DirtyMcCurdy

Well-Known Member
nomofatum said:
Those plants most definitely do not have a Calcium or Magnesium deficiency. WTF would the point be in adding CalMag? Seems like people like to make CalMag into a silver bullet, in reality it's just Cal + Mag and most shouldn't ever need Cal unless they choose to filter it out of their water. Never ever buy CalMag or use RO water, that is my recommendation.
Click to expand...
I've heard that the calcium found in tap water comes from calcium carbonate, which plants do not uptake. This might not be true. But recommending people to not use RO water? I don't know how many growers swear by using RO water even if just for the purpose of knowing what you're starting with... clean pure water.
 
Tone5500

Tone5500

Well-Known Member
nomofatum said:
Those plants most definitely do not have a Calcium or Magnesium deficiency. WTF would the point be in adding CalMag? Seems like people like to make CalMag into a silver bullet, in reality it's just Cal + Mag and most shouldn't ever need Cal unless they choose to filter it out of their water. Never ever buy CalMag or use RO water, that is my recommendation.
Click to expand...
Never use ro water that's extreme every case is diffrent in my tap it's 750 plus ppm so for
Me its a requirement not a preference . But I'm in hydro
 
nomofatum

nomofatum

Well-Known Member
Tone5500 said:
Never use ro water that's extreme every case is diffrent in my tap it's 750 plus ppm so for
Me its a requirement not a preference . But I'm in hydro
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RO is still overkill and not a requirement. I'm in hydro too. RO should only be needed if you are filtering out something small and toxic. Other less expensive and faster filters can easily drop you into the range you want and not go so far that you are adding it back in.
 
Tone5500

Tone5500

Well-Known Member
nomofatum said:
RO is still overkill and not a requirement. I'm in hydro too. RO should only be needed if you are filtering out something small and toxic. Other less expensive and faster filters can easily drop you into the range you want and not go so far that you are adding it back in.
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Can you give me a link to one of these filter you are talking about I mean my Ro system I useed only costed 120 bucks , and I've used it for over a year now and still drops me below 20ppm and no free chlorine ,
 
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