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Help needed. Coco 4th week veg.

  • Thread starter Thread starter activatedsenpai
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Help needed. Coco 4th week veg.

activatedsenpai 46 Replies 4,239 Views
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activatedsenpai

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#1
Hi this is my first grow and I'm four weeks in , I feel like my plants leaves mainly the newer leaves are yellowing/light greening and almost feel like paper.

I've attached some pictures.

700-800ppm
1.5 cal mag
2ml coco a
2 ml coco b
2ml super roots
1ml mycrozyme

6ph

Please help?

There not tall at all tight node spacing , bushy is this normal also.

Blueberry OG barneys farm seeds.
 

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#3
What kind of coco are you using? is it buffered? maybe try to up the cal mag a bit,it looks nutrient related
 
#5
@Captspaulding @PooToe you guys have any ideas about this?

I see a spot on a leaf in 2nd to last picture that looks pretty strange. Any signs of any pests?
 

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#6
I've upped nutes slightly , I have put them on drippers now 15 mins twice per day , the damage on the leak is where my partner dropped it when it was younger no pests , sorry I forgot to mention.
 
#7
The plants are so bushy also and very tight node spacing, should I cut the massive leaves out as a couple of the leaves are huge
 
#8
activatedsenpai said:
The plants are so bushy also and very tight node spacing, should I cut the massive leaves out as a couple of the leaves are huge
Click to expand...
How old is your plant? You can definitely cut some of the bigger fan leaves off to help concentrate growth in other areas, but before cutting anything id get the problems under control. Dont wanna hit it with too many fixes at once, might over stress her and stunt the shit out of the growth.

So iv never grown with coco, but i dont think your watering schedule is right. You typically want to saturate the entirety of the growing media, and then just wait until thats mostly dry and water again. So usually its best to give a heavy watering and wait. 1st knuckle in the soil is an ok trick to check dryness, could use a moisture meter, take daily pictures of your plant and compare to see if leaves are starting to droop, or you could lift the pot to test the weight. Heavier pot usually means water is still retained.

What kind of light? Do you know the ppfd? Download the tent buddy app or the photone app, use those to check ppfd. Its possible the light is too intense. You usually want around 400-600ppfd for veg stage. Usually. Every plant is gonna be a little different
 
#9
Noticed this today guys ....

Should I flush and then apply half nutes ? Coco grow ?

Looks like toxicity to me ?


Please help I'm scared haha
 

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#11
mstrpkl said:
@Captspaulding @PooToe you guys have any ideas about this?

I see a spot on a leaf in 2nd to last picture that looks pretty strange. Any signs of any pests?
Click to expand...
Nothing to worry about. Probably late flower deficiency or part of the natural leaf die off.
 
#12
PooToe said:
Nothing to worry about. Probably late flower deficiency or part of the natural leaf die off.
Click to expand...
@PooToe different thread, this guys not in flower yet hahahaha sorry i probably spend too much time on the forum 😅
 
#13
activatedsenpai said:
Noticed this today guys ....

Should I flush and then apply half nutes ? Coco grow ?

Looks like toxicity to me ?


Please help I'm scared haha
Click to expand...
Looks like a deficiency through too high a light energy. Turn down your lights and supplement with some cal/mag.

The sawtoothing your leaves are exhibiting tells me that the lights are a bit too high. Do you have a way to measure the light hitting your leaf surfaces? Leaves will do this to decrease the amount of PPFD that is hitting the leaf surface. It's usually the first signs of tacoing or canoeing where the leaves fold up for the same reason. The high light energy sped up the uptake and usage process of the plant and it used up whatever available mag or cal it had readily available in the soil and whatever was coursing through the plant and its reserves. Turning down the light will slow down photosynthesis giving the plant a chance to reup what it needs as long as you are able to supply it.

I could be wrong and it could be something else causing the deficiency but what I'm seeing as far as the leaves leads me to that conclusion.
 
#14
mstrpkl said:
@PooToe different thread, this guys not in flower yet hahahaha sorry i probably spend too much time on the forum 😅
Click to expand...
Could be mechanical from moving the plant around or it could be some sort of micro deficiency. If it's just one or two leaves I wouldn't worry much but if it is prevalent and spreading then he needs to give it a dose of cal/mag as that looks like the beginnings of that type of deficiency.
 
#15
activatedsenpai said:
Noticed this today guys ....

Should I flush and then apply half nutes ? Coco grow ?

Looks like toxicity to me ?


Please help I'm scared haha
Click to expand...
When I see this it usually means the pH is off in the soil, except I don't grow in coco and don't really know how to fix that maybe drop the pH to 5.5-5.8?
 
#17
Those spots are a calcium deficiency. If you want to reset the root zone, don't flush with RO or tap water, give an extra heavy watering with nute solution instead. The girls rely on that EC to maintain internal water pressure, and when the EC drop dramatically, there is massive carnage on a cellular level with roots' cells bursting walls all over the place.
Dont back off the nutes, maybe up the calcium.
How much runoff are you pushing every day? Odd as it may sound, the solution to many issues in coco is simply a little more runoff.
 
#18
BigF said:
Those spots are a calcium deficiency. If you want to reset the root zone, don't flush with RO or tap water, give an extra heavy watering with nute solution instead. The girls rely on that EC to maintain internal water pressure, and when the EC drop dramatically, there is massive carnage on a cellular level with roots' cells bursting walls all over the place.
Dont back off the nutes, maybe up the calcium.
How much runoff are you pushing every day? Odd as it may sound, the solution to many issues in coco is simply a little more runoff.
Click to expand...
Thanks for the reply I'm currently feeding 3/4 nutes , with drippers in wilma , ph 6 water , 800ppm.

They have recovered slightly I feel like they might need more coco a and coco b , I'm feeding 15ml/10l , but the tips are slightly showing burn but also yellow/light green ? I'll send updatd pictures soon

Thank you for all responses growers !
 
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