anyone help me with these

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sourdieselyumyum

Well-Known Member
Day 4 of flower northern lights In coco coir 3 gal smart pots all look same some worse some better same symptoms fading yellowing of leaves in middle of plant with brown spots. Wondering if this could be from underfeeding. I gave them 530 ppm of foliage pro runoff came out between 550-850 I don't believe it's salt build up. I think it's either lack of nutes or lockout somehow but there ph is were it should be anyone have any thoughts on this as to what could be causing this and how I could fix fast as possible
 

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old shol4evr

Well-Known Member
nutrient defieiency, your ppm is all over the place ,how old are they ,get the ec under control and you should be good ,at least you haven't let them get out of hand.
 
chuck estevez

chuck estevez

Well-Known Member
Alexander Supertramp said:
Just looks a little hungry too me.
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I run FP around that ppm from little to big and don't have those def. especially N
look at the tips and then his stems,rust spots. burnt tips, purple stems and light green leaves. Usually a sign of using r/o or distilled water and not adding in some cal/mag
 
Alexander Supertramp

Alexander Supertramp

Well-Known Member
chuck estevez said:
I run FP around that ppm from little to big and don't have those def. especially N
look at the tips and then his stems,rust spots. burnt tips, purple stems and light green leaves. Usually a sign of using r/o or distilled water and not adding in some cal/mag
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I see what you are saying. But some strains are just a little hungrier than others. That plant looks indica dom and just may need a higher ppm/more frequent feedings. You are probably somewhat correct if he is using distilled water, bad choice for growing.
 
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sourdieselyumyum

Well-Known Member
Water is reverse osmosis strain is sensi northern lights I was under the impression that both cns 17 and foliage pro had plenty of calcium and mag I'm gonna bump ppm up to 700 and see what It does
 
chuck estevez

chuck estevez

Well-Known Member
sourdieselyumyum said:
Water is reverse osmosis strain is sensi northern lights I was under the impression that both cns 17 and foliage pro had plenty of calcium and mag I'm gonna bump ppm up to 700 and see what It does
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Negative, they have enough if using tap water, when using R/O, you NEED to replace what you have removed, OR, you will see exactly what is happening to your plants. FP has enough N to keep them green at that PPM. Just get some cal/mag. mix it into water, then add fp and ph. I bet it looks better in about 72 hrs
 
Silky Shagsalot

Silky Shagsalot

Well-Known Member
sourdieselyumyum said:
Day 4 of flower northern lights In coco coir 3 gal smart pots all look same some worse some better same symptoms fading yellowing of leaves in middle of plant with brown spots. Wondering if this could be from underfeeding. I gave them 530 ppm of foliage pro runoff came out between 550-850 I don't believe it's salt build up. I think it's either lack of nutes or lockout somehow but there ph is were it should be anyone have any thoughts on this as to what could be causing this and how I could fix fast as possible
Click to expand...
are you using coco specific nutes? 530 seems low to me. by the time i'm in flower, i'm in the 800's or higher. run-off is key too. 15-20% is a good number to shoot for. are you ph'ing to 5.8? i'd feed them at a better ppm with a good bit of run-off. i feed every day in flower...
 
jarvild

jarvild

Well-Known Member
Always add cal-mag to RO. Each teaspoon of CNS-17 bloom adds around 250 ppm of nute's to your mix. Always feed with every watering.
Here is my simple recipe
( per gallon)
1.25 ml of GH ArmourSi
3 ml of calimagic
10 ml of CNS-17 Bloom
Same recipe for Flower but I add
2.5ml of Hydroplex weeks 3-8
 
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